Metals and Materials International最新文献

{"title":"Microstructural and Textural Evolution of a Zr-Sn-Nb-Fe Alloy Tube During Cold Pilger Rolling","authors":"Xufeng Wang, Jun Zhou, Yuanzhuo Liu, Linjiang Chai, Yue Liu, Haiqin Zhang, Haiming Liu, Bin Tang, Xiangyi Xue, Jinshan Li","doi":"10.1007/s12540-024-01799-2","DOIUrl":"https://doi.org/10.1007/s12540-024-01799-2","url":null,"abstract":"<p>In this study, a cold-pilgered Zr alloy tube with the composition of Zr-1.0 wt%Sn-1.0 wt%Nb-0.3 wt%Fe was investigated. During the cold pilgering, the tube developed distinct microstructural and textural features at different positions (with varying internal/external diameters and wall thicknesses) due to their specific stress states and deformation amount. Microstructural and textural evolution during cold pilgering were analyzed by characterizing specimens (S0-S4) cut from typical tube positions mainly using electron channeling contrast imaging and electron backscatter diffraction techniques. Transmission electron microscopy was also utilized to reveal typical precipitates in the un-pilgered specimen (S0). Results indicate that at low/medium strains, there exist non-deformation grains with hard orientations in the pilgered tube specimens, leading to heterogeneous microstructures. With increasing strains, the tube specimens show continuously reduced grain sizes and increased kernel average misorientations along with higher fractions of low angle boundaries, resulting in enhanced microstructural homogeneity. During the pilgering, the texture of Zr-1.0Sn-1.0Nb-0.3Fe alloy tube gradually transforms from initial c//TD to c//RD, which changes back to the c//TD at high strains (&gt;∼ 60%). In the meantime, the &lt; 10–10&gt;//AD component is initially weakened slightly but then significantly enhanced, while there is an opposite trend for that of the &lt; 11–20&gt;//AD component. According to the analysis of in-grain misorientation axes, the textural evolution during the pilgering results from the coordination of multiple slip systems and the pyramidal slip can be substantially activated at a high strain.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"185 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Annealing Treatment on the Heterogeneous Microstructure and Properties of Cold-Rolled FeCoCrNiMn High-Entropy Alloy","authors":"Yong Hu, Tao Yang, Chunwang Pan, Lincheng Liu, Haitao Jiao","doi":"10.1007/s12540-024-01795-6","DOIUrl":"https://doi.org/10.1007/s12540-024-01795-6","url":null,"abstract":"<p>The cold rolling and annealing treatment were applied to the face-centered cubic FeCoCrNiMn high-entropy alloy (HEA). The study investigated the heterogeneous microstructure and mechanical properties of FeCoCrNiMn HEA under different annealing temperatures and rolling reduction amounts. The results show that, when annealed at 600 ℃ − 700 ℃, it is beneficial for obtaining a heterogeneous microstructure composed of fine grains, deformed grains and precipitated phases. Due to the multiple strengthening mechanisms caused by the heterogeneous microstructure, the FeCoCrNiMn HEA exhibits excellent tensile properties, achieving a better balance of strength and plasticity. With a primary rolling and annealing treatment at 650 ℃ for 1 h, the recrystallization volume fraction is 50%, and the yield strength, ultimate tensile strength and elongation are 730.66 MPa, 909.67 MPa and 23.60% respectively, indicating high strength and ductility. With the increase of the annealing temperature, the precipitation of Cr-rich σ phase becomes more evident, the maximum volume fraction of σ phase is 1.96%, and the yield strength is increase by 41.65 MPa due to precipitation strengthening. With the increase of the degree of recrystallization, a phenomenon of texture component weakening and texture randomization occurs, but the main rolling textures, such as P-type and B-type textures, are still retained.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"95 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of Cu Particles with Porous Surface and Enhanced Sinter-Bondability between Cu Finishes by Physically In Situ Formation of Cu Nanoparticles Using Them","authors":"Byeong Jo Han, Jong-Hyun Lee","doi":"10.1007/s12540-024-01790-x","DOIUrl":"https://doi.org/10.1007/s12540-024-01790-x","url":null,"abstract":"<p>Cu particles with porous surface are fabricated and used as the paste fillers for rapid sintering. The particles are manufactured by the formation of Cu₅Zn₈ on the surface of the Cu particles, followed by dezincification. The porous structure formed on the surface of the Cu particles collapses owing to external compression during sinter bonding and the in situ formation of Cu nanodebris, thereby enhancing the sinter-bondability. The sinter bonding was performed under 10 MPa at 300 °C in air. Higher shear strength was measured for the paste containing Cu particles with a porous surface compared to the identical sized spherical Cu particles at all bonding times. In particular, a near-full-density bondline was formed after bonding for 3 min and the shear strength increased to 15.85 MPa. When bonding was maintained for 10 min, an excellent shear strength of 20.17 MPa was obtained.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"279 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Research Status and Prospects of Ultrasonic Vibration-Assisted Joining Technology for Difficult-to-Weld High-Strength Alloys","authors":"Yue Zhang,&nbsp;JianBiao Peng,&nbsp;Ruitao Peng,&nbsp;JiaChuan Jiang,&nbsp;Bei Lei,&nbsp;ChangHui Liao,&nbsp;ChangYou Xu","doi":"10.1007/s12540-024-01802-w","DOIUrl":"10.1007/s12540-024-01802-w","url":null,"abstract":"","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"30 11","pages":"2971 - 2971"},"PeriodicalIF":3.3,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microstructure and Mechanical Properties of Al-Cu-Mn Alloy Mechanically Alloyed with 5 wt% Zr After Multi-Directional Forging","authors":"A. S. Prosviryakov, A. I. Bazlov, M. S. Kishchik, A. V. Mikhaylovskaya","doi":"10.1007/s12540-024-01800-y","DOIUrl":"https://doi.org/10.1007/s12540-024-01800-y","url":null,"abstract":"<p>Zr-containing aluminum-based alloys and especially Al-Zr composites have high thermal resistance due to the formation of Al₃Zr dispersoids from supersaturated aluminum solid solution. The use of mechanical alloying can significantly increase the solubility of zirconium and improve the strength properties at elevated temperatures. The aim of the present work is to investigate the effect of multi-directional forging (MDF) on the microstructure and properties of Al-Cu-Mn alloy mechanically alloyed with 5 wt%Zr. Mechanical alloying was carried out by ball milling for 20 h at 300 rpm. The temperature of hot pressing and subsequent MDF operation was 400 °C. SEM, XRD and TEM were used to study the microstructure. In this work, it was shown that MDF leads to the formation of a poreless structure compared to hot pressing due to strain accumulation during hot deformation, as well as grain growth and microhardness reduction. At the same time, the highest compressive yield strength at 350 °C of 132 MPa was achieved after forging. The obtained material consisted of nanocrystalline aluminum matrix and secondary precipitates of Al₃Zr with cubic (L1₂) and tetragonal (D0₂₃) lattices as well as Al₂₀Cu₂Mn₃ phase.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"117 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Strategy for Simultaneous Increasement in the Strength-Ductility Balance of Directly-Quenched Ultra-High Strength Low Alloy Steel","authors":"Jung-Hyun Park, Min-Seok Baek, Young-Kyun Kim, Jin-Hee Ham, Kee-Ahn Lee","doi":"10.1007/s12540-024-01794-7","DOIUrl":"https://doi.org/10.1007/s12540-024-01794-7","url":null,"abstract":"<p>This study investigated a strategy for simultaneous improving in the strength and ductility of the directly quenched ultra-high strength low alloy steel via low-temperature tempering. To stabilize the microstructure, sub-zero treatment was also employed at -73 °C for 30 min, and then tempering was performed for two types of temperature at 200 °C and 630 °C for 30 min. The microstructure of as-quenched steel consists of lath martensite and meta-stable retained austenite. After low temperature tempering (200 °C), some stable reverted austenite was formed at the austenite/martensite interface. When tempering was performed at high temperature (630 °C), the entire austenite remained as reverted austenite. In addition, Ti-rich carbides were observed at the martensite lath boundaries during tempering treatment. Tensile strength increased up to ∼ 1.8 GPa after low-temperature tempering, and ductility was also higher than that of as-quenched steel. In contrast, the steel which was tempered at 630 °C shows low mechanical properties compared to the as-quenched steel. Correlations between microstructure evolution (meta-stable to stable austenite transformation), mechanical properties and deformation behavior were also discussed and identified.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"64 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Microstructural Changes by Friction Stir Processing on the Clad-to-Core Interfacial Strength of Thin Aluminum-Clad Aluminum Sheets","authors":"Kun Gao, Guiqi Liu, Sung-Tae Hong, Soumyabrata Basak","doi":"10.1007/s12540-024-01776-9","DOIUrl":"https://doi.org/10.1007/s12540-024-01776-9","url":null,"abstract":"<p>The present study successfully utilizes friction stir processing (FSP) as a surface engineering tool on an AA4343-clad AA3003 sheet to improve the interfacial strength through microstructural homogenization. Compared to the base material condition, electron back-scattered diffraction analysis after FSP reveals a considerable reduction in grain morphological disparity between the clad layer and the core due to the occurrence of grain refinement by continuous dynamic recrystallization. Scanning electron microscopy (SEM) analysis reveals various Si-induced precipitations, including Al (Mn, Fe) Si, within the stir zone due to the diffusion of Si from the clad layer to the core during FSP. The influence of microstructural changes on improving the mechanical properties of the bi-layer clad sheet is also examined. The surface microhardness values of the clad (~ 28.7 Hv) and core (~ 35.5 Hv) for the base material condition are found to be improved to ~ 34.7 Hv and 38.5 Hv, respectively, after FSP. Besides, the overall strength of the FSPed clad sheet increases by ~ 45% compared to the base material conditions. The microstructural homogenization and Si-induced precipitates act together to strengthen the interface in the clad material system. SEM images on the fractured surfaces of the tensile specimens reveal delamination between the AA4343 (clad layer) and AA3003 (core) for the base material condition, which disappears after FSP.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"59 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlation Between Microstructural Features and Corrosion Resistance in a Fine-Grained Severely Deformed Biodegradable Mg‒4Zn Alloy","authors":"M. Sabbaghian, R. Mahmudi, K. S. Shin","doi":"10.1007/s12540-024-01789-4","DOIUrl":"https://doi.org/10.1007/s12540-024-01789-4","url":null,"abstract":"<p>The corrosion resistance of a biodegradable Mg‒4Zn alloy, severely deformed by equal channel angular pressing (ECAP) and simple shear extrusion (SSE), was investigated and formulated in terms of different microstructural features. The grain size of the extruded alloy decreased after ECAP and SSE. The finest grain size of 3.6 μm was obtained after 4 SSE passes. Second phase particles were refined and distributed more uniformly in the SSE-processed conditions. Electron back-scattered diffraction examinations revealed that 4 ECAP passes transforms the fiber texture of the extruded material to a shear-type texture component. However, a semi-fiber component, with the (0001) planes parallel to the pressing direction, was observed in SSE-processed samples. The corrosion resistance, analyzed via electrochemical testing in a phosphate buffered saline (PBS), was improved by ECAP and SSE processing. Despite the larger grain size of the ECAP-processed conditions, they showed higher corrosion resistances (<i>R</i>p) than those of the SSE-processed ones. This was attributed to the higher density of basal planes at the surface, vaster dynamically recrystallized regions, larger high-angle grain boundary fractions, lower second phase volume fractions, and more homogeneous grain structures. These microstructural features were quantified and incorporated into a model to formulate the corrosion resistance of the alloy.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"2 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Different Microstructure on Strengthening Mechanism and Hardening Mechanism in Peak-Aged Mg–14Gd–0.2Sn Alloy","authors":"Boshu Liu, Kaiqiang Cao, Rongguang Li, Yuehong Zhang, Hang Zhang, Shanshan Li, Sha Sha","doi":"10.1007/s12540-024-01792-9","DOIUrl":"https://doi.org/10.1007/s12540-024-01792-9","url":null,"abstract":"<p>A bimodal-grained microstructure is formed in the Mg–14Gd–0.2Sn alloy extruded with a small extrusion ratio of 7 (E7 alloy), containing a large number of fine dynamic recrystallized (DRXed) grains with an average size of ~ 1.11 μm. In comparison, a much higher proportion of DRXed microstructure (~ 90%) with a coarser grain size of ~ 5.85 μm is formed in the alloy extruded with a large ratio of 16 (E16 alloy). The lower actual temperature during extrusion of the E7 alloy increases the supersaturation degree of α-Mg solid solution matrix, and induces a higher volume fraction of dynamic precipitates (β-Mg₅Gd) compared with the E16 alloy. After aging, the E7-A alloy exhibits a stronger precipitation strengthening effect with a peak-aged yield strength (YS) of 405 MPa. The YS of the E7-A alloy presents a remarkable improvement of 88 MPa compared with that of the E16-A alloy, which is mainly related to finer DRXed grains and stronger texture. In contrast, the hardness increment of the E16-A alloy is higher than that of the E7-A alloy, and the peak hardness of the E16-A alloy is comparable to that of the E7-A alloy. Although the high density of precipitates in the E16-A alloy contributes to a strong aging hardening response, the weaker precipitation strengthening effect of the E16-A alloy is mainly attributed to the activation of twinning in coarser grains with a weaker texture.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"44 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving High-Temperature Wear Resistance of Ti–6Al–4V alloy via Si–B–Y Co-Deposited Coatings","authors":"Xuan Li, Xu-yi Zhang, Zhi-zhang Liu, Li-jing Zhang, Lei Luo, Sheng Lai","doi":"10.1007/s12540-024-01787-6","DOIUrl":"https://doi.org/10.1007/s12540-024-01787-6","url":null,"abstract":"<p>Si-deposited and Si–B–Y co-deposited coatings were prepared on the Ti–6Al–4V alloy using the pack cementation technique. The microstructures of the coatings, as well as their high-temperature wear performance and mechanisms, were comparatively investigated. The results illustrated that the Si–B–Y co-deposited coating had a similar structure with the Si-deposited coating, both of them possessed three-layer structures: an outer layer of TiSi₂ matrix, a middle layer of TiSi, and an inner layer of Ti₅Si₄ and Ti₅Si₃ mixtures. However, numerous TiB₂ and Y₂O₃ phases formed in the superficial zones of the Si–B–Y co-deposited coating. The micro-hardness of the Si-deposited and Si–B–Y co-deposited coatings was significantly higher than that of the Ti–6Al–4V substrate, and displayed a gradual decrease tendency from the coating surface to the interior. Compared to the Si-deposited coating, the Si–B–Y co-deposited coating possessed a more compact structure and higher surface hardness, and offered better anti-wear performance for the Ti–6Al–4V substrate at 600 ℃. Worn against the GCr15 ball, the average friction coefficient of the Si–B–Y co-deposited coating (~ 0.449) were near equal to that of the Si-deposited coating (~ 0.474), but lower than that of the Ti–6Al–4V substrate (~ 0.685). The wear rate of the Si–B–Y co-deposited coating was approximately 4.1 × 10⁻⁵ mm³/N·m, lower than that of the Ti–6Al–4V substrate by about 74.6%, and the Si-deposited coating by about 37.3%, respectively. When worn against the Al₂O₃ ball, the average friction coefficient of the Si–B–Y co-deposited coating (~ 0.742) was lower than that of the Si-deposited coating (~ 0.811), but higher than that of the Ti–6Al–4V substrate (~ 0.551). The wear rate of the coating was approximately 1.22 × 10⁻⁴ mm³/N·m, lower than that of the Ti–6Al–4V substrate by about 72.2%, and the Si-deposited coating by about 35%.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"1 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}