Materials Science and Engineering: A最新文献_第9页

Dual role of dislocations in enhancing strength-ductility synergy in a TRIP-assisted steel

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-08 DOI: 10.1016/j.msea.2025.148003

C.P. Huang , S. Pan , C. Hu , Y.X. Liu , B.B. He , M.X. Huang

{"title":"Dual role of dislocations in enhancing strength-ductility synergy in a TRIP-assisted steel","authors":"C.P. Huang , S. Pan , C. Hu , Y.X. Liu , B.B. He , M.X. Huang","doi":"10.1016/j.msea.2025.148003","DOIUrl":"10.1016/j.msea.2025.148003","url":null,"abstract":"<div><div>Dislocations can act as barrier to the glissile martensite/austenite interface, resulting in mechanical stabilization of austenite. In contrast, dislocations can also assist martensitic transformation by providing mechanical interaction energy via elevated flow stress. The present work harnesses the competing role of dislocations in affecting the mechanical stability of austenite through one-step warm rolling process. The warm rolling process results in elevated dislocation density and brings triple benefits: (i) enhancing flow stress, (ii) preserving high initial austenite volume fraction, and (iii) improving martensitic transformation rate. The triple benefits, coordinated by the high dislocation density in affecting austenite stability, renders a medium Mn steel achieving sustained high strain hardening rate at high flow stress level across large strain regime, substantially enhancing the yield strength and ultimate tensile strength with no ductility loss. The present strategy can be applied to other metastable metals, such as high entropy alloys and titanium alloys.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"927 ","pages":"Article 148003"},"PeriodicalIF":6.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143386916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of annealing temperature on microstructure, work hardening and softening behavior of cold-rolled Mg-8Li-3Al-0.3Si alloy

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-08 DOI: 10.1016/j.msea.2025.148025

Quan-xin Shi , Ya-niu Li , Kun-kun Deng , Cui-ju Wang , Kai-bo Nie , Wei Liang

{"title":"Effect of annealing temperature on microstructure, work hardening and softening behavior of cold-rolled Mg-8Li-3Al-0.3Si alloy","authors":"Quan-xin Shi , Ya-niu Li , Kun-kun Deng , Cui-ju Wang , Kai-bo Nie , Wei Liang","doi":"10.1016/j.msea.2025.148025","DOIUrl":"10.1016/j.msea.2025.148025","url":null,"abstract":"<div><div>In this article, the effect of annealing temperature on the microstructure and mechanical performance of cold-rolled dual phase Mg-8Li-3Al-0.3Si (LAS830) alloy was systemically investigated. Meanwhile, the regulation of annealing temperature on the work hardening and softening behavior of the cold-rolled LAS830 alloy was discussed. The results show that the dislocation density significantly decreases and the nanoscale MgLi<sub>2</sub>Al phase disappears for the cold-rolled LAS830 alloy after annealing at 200 °C for 1 h, causing a decrease in the yield strength (YS) and ultimate tensile strength (UTS). However, the MgLi<sub>2</sub>Al phase precipitates again when the annealing temperature increases to 240, 280 and 320 °C. The volume fraction of the MgLi<sub>2</sub>Al phase increases with increasing annealing temperature from 240 to 320 °C, while the volume fraction of AlLi phase gradually decreases due to the dissolution into <em>β</em>-Li phase, which results in an improvement of YS and UTS as a result of solution strengthening and secondary phase strengthening. The work hardening rate of the cold-rolled LAS830 alloy in the stage Ⅲ significantly decreases after annealing at 200 °C due to the reduction of dislocation density, but it gradually increases with the improvement of annealing temperature, this is mainly ascribed to the growth of recrystallized grains and an increase in the volume fraction of MgLi<sub>2</sub>Al phase. Moreover, the high density of dislocations is generated in the LAS830 alloy after rolling at room temperature, which provides a significant driving force for static recovery to occur, thereby improving the softening effect of alloy. The softening effect of the cold-rolled LAS830 alloy significantly decreases after annealing at 200 °C, and it further decreases with increasing the annealing temperature, which is mainly related to the grains size and secondary phase content in the alloy.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"927 ","pages":"Article 148025"},"PeriodicalIF":6.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Hertz contact rotation expansion processing on surface integrity and fatigue life improvement for a nickel-based hole structure

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-08 DOI: 10.1016/j.msea.2025.148027

Run-Zi Wang , Shun Tokita , Yutaka S. Sato , Le Xu , Hideo Miura

{"title":"Effects of Hertz contact rotation expansion processing on surface integrity and fatigue life improvement for a nickel-based hole structure","authors":"Run-Zi Wang , Shun Tokita , Yutaka S. Sato , Le Xu , Hideo Miura","doi":"10.1016/j.msea.2025.148027","DOIUrl":"10.1016/j.msea.2025.148027","url":null,"abstract":"<div><div>This study aims to enhance the fatigue performance of Inconel 718 superalloy components with hole structures, thereby extending their service lifetimes at elevated temperatures. In this paper, Hertz contact rotation expansion process (HCR-EP) was conducted for the strengthening of hole structures. Surface integrity distributions and evolutions were investigated and compared to that of the unstrengthening ones. Results showed that all the surface integrity factors, including surface roughness, plastic deformation layer (PDL), microhardness and compressive residual stress (CRS) layer, were significantly improved. Transmission electron microscopy (TEM) analysis of the PDL unveiled the formation of nano-grains, dislocation cells and mechanical twins, designed as the gradient microstructures. Based on the above enhancements, HCR-EP strengthening presented overall fatigue life improvements at 650 °C. The lower the stress level, the more obvious the fatigue life improvement effectiveness, as manifested by the fatigue life showing 0.32, 0.51, and 0.92 times higher than that of the unstrengthening ones. The lower the stress level, the more obvious the fatigue life improvement effectiveness. To further understand the correlation between surface integrity and fatigue life, interrupted fatigue tests combined with various characterization methods were employed, revealing excellent high-temperature stability in the fatigue-induced surface integrity evolutions via HCR-EP. The study also discussed the underlying mechanism by which slower relaxation of surface CRS leads to greater high-cycle fatigue life improvement, underscoring its potential in priority application scenarios in the future.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"927 ","pages":"Article 148027"},"PeriodicalIF":6.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Achieving isotropic ultra-high strength and fatigue properties in a wire arc directed energy deposited Al-Zn-Mg-Cu-Sc alloy via interlayer friction stir processing

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-08 DOI: 10.1016/j.msea.2025.148026

Xinpeng Guo , Dingrui Ni , Huijun Li , Peng Xue , Zengxi Pan , Bosheng Dong , Zhijun Qiu , Zongyi Ma

{"title":"Achieving isotropic ultra-high strength and fatigue properties in a wire arc directed energy deposited Al-Zn-Mg-Cu-Sc alloy via interlayer friction stir processing","authors":"Xinpeng Guo , Dingrui Ni , Huijun Li , Peng Xue , Zengxi Pan , Bosheng Dong , Zhijun Qiu , Zongyi Ma","doi":"10.1016/j.msea.2025.148026","DOIUrl":"10.1016/j.msea.2025.148026","url":null,"abstract":"<div><div>Pore defects are the most critical issue in the wire arc directed energy deposition (WA-DED) of aluminum alloys, hindering their application in the aerospace and transportation field. The interlayer friction stir processing (FSP), as an innovative composite technique applied in WA-DED, not only effectively addresses pore defects but also improves the material's microstructure, significantly enhancing its tensile and fatigue properties. However, interlayer FSP-treated aluminum alloys are prone to abnormal grain growth (AGG) during subsequent heat treatment processes, leading to a significant reduction in mechanical performance. This study utilized a custom Al-Zn-Mg-Cu-Sc filler wire and employed a combination of WA-DED and interlayer FSP processes to manufacture an alloy that not only eliminates all pore defects but also shows no AGG phenomenon after T6 heat treatment. The manufactured alloy achieves isotropy in mechanical properties, with a tensile strength and elongation of 645 <span><math><mrow><mo>±</mo></mrow></math></span> 8 MPa and 12.6 <span><math><mrow><mo>±</mo></mrow></math></span> 0.5 %, respectively. The fatigue performance is significantly improved to 250 MPa, marking the highest values in the field of WA-DED aluminum alloys to date. This method provides a feasible approach for eliminating defects and achieving isotropy in aluminum alloys during the additive manufacturing process.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"927 ","pages":"Article 148026"},"PeriodicalIF":6.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling microstructural heterogeneity and strain redistribution mechanisms in hybrid-manufactured Ti6Al4V

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-08 DOI: 10.1016/j.msea.2025.148023

Fan Kuang , Qingjun Zhou , Yu Pan , Liansheng Yue , Aihua Yu , Xin Lu

{"title":"Unveiling microstructural heterogeneity and strain redistribution mechanisms in hybrid-manufactured Ti6Al4V","authors":"Fan Kuang , Qingjun Zhou , Yu Pan , Liansheng Yue , Aihua Yu , Xin Lu","doi":"10.1016/j.msea.2025.148023","DOIUrl":"10.1016/j.msea.2025.148023","url":null,"abstract":"<div><div>Hybrid-manufactured titanium (Ti) alloys exhibit significant challenges in achieving uniform mechanical properties due to the heterostructured interfaces. In this study, we systematically investigated the microstructural evolution, crystal orientation, and tensile strain distribution in hybrid-manufactured Ti6Al4V, focusing on flow stress, strain partitioning, and dislocation mobility at various interface conditions. Due to the incomplete phase transformation, a unique ghost structure forms in the heat-affected zone (HAZ) between the deposition zone and substrate. This structure, influenced by the residual α, exhibits significant variant selection. The unique needle-like α and α blocks inside the ghost structure effectively reduce the local internal strain. Numerous mixed dislocations in the rim of the ghost structure improve the strain hardening. The gradient microstructure in HAZ plays a pivotal role in strain redistribution, enabling the hybrid-manufactured Ti6Al4V to outperform traditional forged production in tensile properties. The hybrid-manufactured Ti6Al4V achieves an ultimate tensile strength of 1018 MPa and an elongation of 10.5 %. This work provides critical insights into the mechanisms underlying heterogeneous deformation in hybrid-manufactured Ti alloys and offers practical guidance for manufacturing complex and high-performance load-bearing components.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"927 ","pages":"Article 148023"},"PeriodicalIF":6.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The influence of external wire on microstructure evolution and mechanical properties of Co-free maraging steel produced by double-wire double-arc directed energy deposition

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-08 DOI: 10.1016/j.msea.2025.148021

Gaige Chang , Dongqing Yang , Xiaopeng Li , Pengfei Gao , Xiaotian Zhang , Yong Huang , Heguo Zhu , Kehong Wang

{"title":"The influence of external wire on microstructure evolution and mechanical properties of Co-free maraging steel produced by double-wire double-arc directed energy deposition","authors":"Gaige Chang , Dongqing Yang , Xiaopeng Li , Pengfei Gao , Xiaotian Zhang , Yong Huang , Heguo Zhu , Kehong Wang","doi":"10.1016/j.msea.2025.148021","DOIUrl":"10.1016/j.msea.2025.148021","url":null,"abstract":"<div><div>A Co-free maraging steel wall was successfully fabricated using the double-wire double-arc directed energy deposition (DED) method with an external wire, achieving a high deposition rate of 8.5 kg/h. The thermal behavior during the deposition process, as well as the effect of the external wire on the microstructural evolution and mechanical properties of the fabricated components, were investigated. The external wire reduced the peak temperature and increased the cooling rate of the deposited component. The microstructure predominantly consisted of martensite, with a small amount of austenite. The external wire increased the martensitic content in the area between the two arcs, while reducing the texture intensity in this area. No significant changes were observed in the area directly beneath the arc. The external wire improved the ultimate tensile strength and microhardness of the deposited component. At a feeding speed of 4 m/min, the deposition rate increased by 33 % compared to the conventional double-wire double-arc DED method. The average tensile strength of the samples reached 1233 MPa, with an elongation of 12.4 %. These findings provide new insights into achieving high deposition rates and enhanced mechanical properties in wire-arc DED processes.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"927 ","pages":"Article 148021"},"PeriodicalIF":6.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143386352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical properties and failure behavior of silicon nitride based plate and truss lattices fabricated by vat photopolymerization 3D printing

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-08 DOI: 10.1016/j.msea.2025.148030

Huilu Guo , Ian Seetoh , Pengcheng Ye , Yida Zhao , Changquan Lai , Zehui Du , Chee Lip Gan

{"title":"Mechanical properties and failure behavior of silicon nitride based plate and truss lattices fabricated by vat photopolymerization 3D printing","authors":"Huilu Guo , Ian Seetoh , Pengcheng Ye , Yida Zhao , Changquan Lai , Zehui Du , Chee Lip Gan","doi":"10.1016/j.msea.2025.148030","DOIUrl":"10.1016/j.msea.2025.148030","url":null,"abstract":"<div><div>Truss- or plate-based silicon nitride (Si<sub>3</sub>N<sub>4</sub>) ceramic lattices, including SC (simple cubic), SCBCC (hybrid of SC/body centered cubic truss) and plate SO (hybrid of SC/octet plates) lattices with density of ∼1.6 g/cm<sup>3</sup> were fabricated by vat photopolymerization 3D printing. Uniaxial compression tests show that the plate SO lattices exhibited ultrahigh elastic modulus of 103 GPa and strength of 418 MPa, followed by SC (83 GPa/415 MPa) and SCBCC (71 GPa/324 MPa). The lattices displayed interesting failure characteristics, where the truss lattices tend to have failure start at horizontal or inclined struts at outer regions and proceed ‘inwards’, while plate-based lattice have outer regions breaking from the main body in a highly faceted manner. Under 3-point bending, the SCBCC lattice offered better support against shear and diagonal loads, which enabled it to exhibit similar flexural strengths to the SC lattice (∼130 MPa). The fracture failure mechanisms were thoroughly discussed with the support of finite element simulation analysis. The studied Si<sub>3</sub>N<sub>4</sub> ceramic lattices have effective densities similar to conventional plastics but exhibit the compressive and flexural properties comparable to many ceramics and metals, which renders it great potential in various applications such as in automotives, aerospace and satellites.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"927 ","pages":"Article 148030"},"PeriodicalIF":6.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser powder bed fusion of molybdenum: Density, structure and mechanical properties at room and elevated temperatures

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-07 DOI: 10.1016/j.msea.2025.148004

Aurore Leclercq, Thibault Mouret, Vladimir Brailovski

{"title":"Laser powder bed fusion of molybdenum: Density, structure and mechanical properties at room and elevated temperatures","authors":"Aurore Leclercq, Thibault Mouret, Vladimir Brailovski","doi":"10.1016/j.msea.2025.148004","DOIUrl":"10.1016/j.msea.2025.148004","url":null,"abstract":"<div><div>Molybdenum is a material of great industrial interest due to its specific properties, particularly at elevated temperatures. Additive manufacturing technologies have recently been proposed as an alternative to conventional powder metallurgy processes because of their flexibility in producing complex geometries. In this study, interrelations between the laser powder bed fusion process parameters and structural and mechanical properties of printed molybdenum specimens are investigated with a bid to propose an optimal set of process parameters. To support this approach, a plan of experiments was built using a simplified numerical simulation of the temperature field surrounding the melt pool. This approach led to the production of crack-free specimens with a printed density of 97%, an ultimate strength of 510 MPa, a yield strength of 340 MPa, and a maximum strain of 11% (all in compression at room temperature) using an optimized set of printing parameters <em>P</em> = 179 W, <em>v</em> = 133 mm/s, <em>h</em> = 60 μm and <em>t</em> = 30 μm. Compression testing in the 20-1000 °C temperature range revealed that the mechanical properties of printed molybdenum (ultimate strengths of 260 and 150 MPa at 800 and 1000 °C, respectively) are comparable to their conventional powder metallurgy manufactured counterparts. Printing of a series of geometric artifacts, such as walls (down to 0.1 mm in thickness), gaps (down to 0.3 mm in width) and lattice structures (50 and 60% porosity gyroids), has proven the potential of laser powder bed fusion to produce complex molybdenum parts for applications over a wide temperature range.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"929 ","pages":"Article 148004"},"PeriodicalIF":6.1,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the impact of hard-to-soft domain ratios in a heterostructured multi-principal element alloy

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-07 DOI: 10.1016/j.msea.2025.148024

Peyman Asghari-Rad , Yongju Kim , Gang Hee Gu , Hidemi Kato , Hyoung Seop Kim

{"title":"Exploring the impact of hard-to-soft domain ratios in a heterostructured multi-principal element alloy","authors":"Peyman Asghari-Rad , Yongju Kim , Gang Hee Gu , Hidemi Kato , Hyoung Seop Kim","doi":"10.1016/j.msea.2025.148024","DOIUrl":"10.1016/j.msea.2025.148024","url":null,"abstract":"<div><div>This study investigates the fabrication and characterization of heterogeneous structures. It utilizes high-pressure torsion (HPT) for cold consolidation of CoCrFeMnNi high-entropy alloy and Fe<sub>60</sub>Co<sub>15</sub>Ni<sub>15</sub>Cr<sub>10</sub> medium-entropy alloy powders in varying ratios. The primary objective is to optimize the synergy between strength and ductility by adjusting the ratios of the hard to soft domains. Initially, the HPT-consolidated specimens demonstrated high strength but limited ductility. However, annealing at different temperatures significantly enhanced ductility due to reduced HPT-induced dislocation density and grain growth. Tensile toughness is introduced as a key criterion for determining the most effective microstructure configuration, highlighting the interplay between strength and ductility. The study further assesses the efficiency of heterostructuring by comparing the experimental toughness with the predictions of the rule of mixtures. A composition comprising 75 % hard domain and 25 % soft domain was found to be most effective. Additionally, loading-unloading-reloading tests indicated that the highest hetero-deformation-induced (HDI) strengthening occurred in samples with a higher proportion of the hard domain. This research not only underscores the potential of heterostructured materials in various engineering applications but also provides valuable insights into the development of materials with enhanced mechanical properties through strategic heterostructuring.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"927 ","pages":"Article 148024"},"PeriodicalIF":6.1,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143386919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anisotropic characterization of wire-arc additive manufacturing Ti-5Al-2Sn-2Zr-4Mo-4Cr alloy: Influence of texture and microstructure

IF 6.1 2区材料科学

Materials Science and Engineering: A Pub Date : 2025-02-07 DOI: 10.1016/j.msea.2025.148020

Banglong Yu , Ping Wang , Yong Liu , Xiaoguo Song , Yazhou Liu , Man Jae SaGong , Renhao Wu , Hyoung Seop Kim

{"title":"Anisotropic characterization of wire-arc additive manufacturing Ti-5Al-2Sn-2Zr-4Mo-4Cr alloy: Influence of texture and microstructure","authors":"Banglong Yu , Ping Wang , Yong Liu , Xiaoguo Song , Yazhou Liu , Man Jae SaGong , Renhao Wu , Hyoung Seop Kim","doi":"10.1016/j.msea.2025.148020","DOIUrl":"10.1016/j.msea.2025.148020","url":null,"abstract":"<div><div>The microstructure, monotonic tensile, low cyclic fatigue (LCF) behavior, and failure mechanisms of wire-arc additive manufacturing (WAAM) TC17 alloy were investigated to guide the design of aviation industry components. The results showed that the average elongation of horizontal and vertical samples was 6.4 % and 14.5 %, respectively. The total strain amplitudes of horizontal and vertical samples were 1.207 % and 1.908 %, respectively, at 2<em>N</em><sub><em>f</em></sub> = 10<sup>3</sup>. The <em>α</em><sub><em>GB</em></sub> and {0001}<11–20> slip system together provide the cumulative plastic deformation, resulting in lower plasticity of horizontal loading compared to vertical loading. Based on crystallography, a parameter <em>F∗</em> was proposed to quantify the anisotropy of LCF properties and the strong correlation between crack propagation and the <em>α</em> + <em>β</em> microstructure. By controlling the deposition parameters in WAAM, it is possible to achieve the desired <em>α</em> lamellae orientation (∼45°< <em>θ</em> < ∼90°), ensuring superior fatigue resistance in the vertical loading direction.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"927 ","pages":"Article 148020"},"PeriodicalIF":6.1,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143386917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0