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Comparative Mechanical Properties Analysis of Triple Ion-Beam Irradiated and Neutron Irradiated Potential Plasma Facing Components 三离子束辐照和中子辐照潜在等离子体面层部件的机械性能对比分析
IF 2.1 4区 材料科学
JOM Pub Date : 2025-03-03 DOI: 10.1007/s11837-025-07218-0
C. Howard, D. Frazer, B. William Choi, A. Lupinacci, S. S. Parker, L. Hsiung, A. Kimura, M. J. Fluss, P. Hosemann
{"title":"Comparative Mechanical Properties Analysis of Triple Ion-Beam Irradiated and Neutron Irradiated Potential Plasma Facing Components","authors":"C. Howard,&nbsp;D. Frazer,&nbsp;B. William Choi,&nbsp;A. Lupinacci,&nbsp;S. S. Parker,&nbsp;L. Hsiung,&nbsp;A. Kimura,&nbsp;M. J. Fluss,&nbsp;P. Hosemann","doi":"10.1007/s11837-025-07218-0","DOIUrl":"10.1007/s11837-025-07218-0","url":null,"abstract":"<div><p>Several classes of materials are being proposed for use in fusion reactors including oxide dispersion strengthened (ODS) and reduced activation ferritic-martensitic (RAF/M) steels to withstand the severe and harsh conditions. In this work, the mechanical properties of a Fe-16Cr-4Al-2W-0.3Ti-0.3Y<sub>2</sub>O<sub>3</sub> (K3) (ODS) ferritic steel and a Fe-8.9Cr-1.1W-0.47Mn-0.2V-0.14Ta-0.11C (Eurofer 97) (RAF/M) steel) after triple ion beam irradiation were locally evaluated utilizing in-situ micro-pillar compression tests, and continuous stiffness/quasi-static nanoindentation. No change in mechanical properties was observed in the K3 ODS steel. However, the Eurofer 97 RAF/M steel exhibited radiation-induced effects via increases in yield strength. Micro-pillar techniques were expanded to neutron-irradiated materials via an in-situ testing technique employing lift-out methods on Fe-14Cr-0.9Ti-0.3Mo-0.25Y<sub>2</sub>O<sub>3</sub> (MA957) ODS ferritic steel. Both the non-irradiated and irradiated compressive yield stresses of the MA 957 micro-pillars were in good agreement with bulk yield stress values reported in the literature, suggesting that the lift-out micro-pillar compression testing technique is a promising method. The demonstration of these techniques on ion beam and neutron irradiated ODS steels and ion beam RAF/M steels gives information to inform models of the material degradation during use in a fusion device.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 4","pages":"2134 - 2145"},"PeriodicalIF":2.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11837-025-07218-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Advanced Modeling of Slag Foaming and Its Industrial Applications for Energy Conservation in Electric Arc Furnaces 电弧炉熔渣发泡先进建模及其节能工业应用
IF 2.1 4区 材料科学
JOM Pub Date : 2025-03-03 DOI: 10.1007/s11837-025-07190-9
Bo Cui, Shengqiang Song, Yan Wang, Jing Li, Xinjiang Wang, Shen Liu
{"title":"Advanced Modeling of Slag Foaming and Its Industrial Applications for Energy Conservation in Electric Arc Furnaces","authors":"Bo Cui,&nbsp;Shengqiang Song,&nbsp;Yan Wang,&nbsp;Jing Li,&nbsp;Xinjiang Wang,&nbsp;Shen Liu","doi":"10.1007/s11837-025-07190-9","DOIUrl":"10.1007/s11837-025-07190-9","url":null,"abstract":"<div><p>Suitable foaming slag is beneficial for improving electricity utilization efficiency and reducing the electricity consumption of electric arc furnaces. One key factor determining the foaming performance of slag is the presence of certain solid particles. Additionally, the MgO content in the slag must reach saturation to minimize the consumption of refractory materials. In this study, based on the CaO-SiO<sub>2</sub>-MgO-FeO slag system and calculations using FactSage 8.3 software, the saturation of MgO and its influence on the foaming properties of slag were investigated. An isothermal saturation diagram and a ternary isothermal cross-section diagram were constructed to compare the foaming properties of slag under different conditions. The relationship between electricity consumption and the foaming properties was verified by industrial test. The results showed that MgO saturation decreases with increasing slag basicity and increases with rising temperature. The effect of FeO content on MgO saturation was more significant at low basicity (B<sub>2</sub> ≤ 1.6) than at high basicity (B<sub>2</sub> &gt; 1.6). Compared to slag outside the optimal foaming range, the average electricity consumption of slag with saturated MgO within the optimal foaming interval was reduced from 350.57 kWh/ton to 333.12 kWh/ton.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 4","pages":"2146 - 2156"},"PeriodicalIF":2.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Study of the Constitutive Equations of Austenitic Stainless Steels under High Strain Rate Loading Considering Phase Transformation Effects 考虑相变效应的高应变率加载奥氏体不锈钢本构方程研究
IF 2.1 4区 材料科学
JOM Pub Date : 2025-02-26 DOI: 10.1007/s11837-025-07262-w
Wenshuai Yang, Yachao Shen, Shuli Chen, Xueya Wang, Dianqiang Shu, Huanran Wang
{"title":"Study of the Constitutive Equations of Austenitic Stainless Steels under High Strain Rate Loading Considering Phase Transformation Effects","authors":"Wenshuai Yang,&nbsp;Yachao Shen,&nbsp;Shuli Chen,&nbsp;Xueya Wang,&nbsp;Dianqiang Shu,&nbsp;Huanran Wang","doi":"10.1007/s11837-025-07262-w","DOIUrl":"10.1007/s11837-025-07262-w","url":null,"abstract":"<div><p>Interrupted tensile tests were used to investigate the phase transformation and deformation behavior of SUS304 stainless steel under quasi-static to high strain rates. In tensile experiments at high strain rates, a single loading test was realized by a modified Hopkinson bar technique. The results show that there is a significant strain rate effect on the strain-induced martensitic transformation (SIMT). A modified Olson–Cohen model with a wide strain rate has been developed for the strain rate effect and the adiabatic temperature increase effect in the quasi-static to dynamic range. A constitutive equation was constructed from a combination of macroscopic and microscopic aspects, which mainly includes austenite volume content, SIMT content, strain rate, and adiabatic temperature increase. The constitutive model realizes the description of the flow stresses in the specimen at wide strain rates and strains and predicts the phenomenon that the quasi-static to dynamic strain-hardening rate transitions from s-type to parabolic. This phenomenon can be attributed to lower SIMT at higher strain rates caused by an adiabatic temperature increase. The validity of this constitutive model was verified by means of finite element simulations.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 5","pages":"2875 - 2887"},"PeriodicalIF":2.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Microstructural Evolution of Steel During Magnetic Field-Assisted Processing 钢在磁场辅助加工过程中的组织演变
IF 2.1 4区 材料科学
JOM Pub Date : 2025-02-26 DOI: 10.1007/s11837-025-07240-2
M. E. Hurley, R. K. Bollineni, A. M. Donald, S. Flynn, J. J. Hamlin, M. S. Kesler, M. V. Manuel, M. W. Meisel, L. Li, V. M. Miller
{"title":"Microstructural Evolution of Steel During Magnetic Field-Assisted Processing","authors":"M. E. Hurley,&nbsp;R. K. Bollineni,&nbsp;A. M. Donald,&nbsp;S. Flynn,&nbsp;J. J. Hamlin,&nbsp;M. S. Kesler,&nbsp;M. V. Manuel,&nbsp;M. W. Meisel,&nbsp;L. Li,&nbsp;V. M. Miller","doi":"10.1007/s11837-025-07240-2","DOIUrl":"10.1007/s11837-025-07240-2","url":null,"abstract":"<div><p>Advancing magnetic field-assisted processing, as an energy-efficient method for tailoring steel microstructures, requires a thorough understanding of how the high magnetic field impacts microstructural evolution, particularly its effect on prior austenite grain structures. The current investigation of a near-eutectoid composition, Fe-C alloy, uses electron backscatter diffraction to examine the morphology and orientation of martensite and pearlite microstructures, and to reconstruct the parent austenite microstructures present during equivalent heating under varied magnetic field strengths (0-T, 2-T, 5-T, and 9-T). It was observed that the magnetic field has a negligible effect on martensite lath/block width, slightly decreases prior austenite grain size, and increases the fraction of austenite grains with annealing twins. Additionally, the magnetic field increases the phase fraction of proeutectoid ferrite but has a negligible effect on pearlite block size and the distribution of boundary misorientation angles. No preferred texture was induced by the magnetic field, regardless of the applied field direction, in the proeutectoid ferrite phase or the martensite and prior austenite microstructures. The observed results contradict previous literature, and the differences are discussed.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 5","pages":"2862 - 2874"},"PeriodicalIF":2.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Role of Deformation Conditions and Mo-Doping on the Evolution of Structure and Mechanical Properties of Powdered Iron Aluminide 变形条件和mo掺杂对粉末状铝化铁组织和力学性能演变的影响
IF 2.1 4区 材料科学
JOM Pub Date : 2025-02-24 DOI: 10.1007/s11837-025-07249-7
O. I. Tolochyn, O. V. Tolochyna, Yu M. Podrezov, V. I. Danylenko, G. A. Bagliuk
{"title":"The Role of Deformation Conditions and Mo-Doping on the Evolution of Structure and Mechanical Properties of Powdered Iron Aluminide","authors":"O. I. Tolochyn,&nbsp;O. V. Tolochyna,&nbsp;Yu M. Podrezov,&nbsp;V. I. Danylenko,&nbsp;G. A. Bagliuk","doi":"10.1007/s11837-025-07249-7","DOIUrl":"10.1007/s11837-025-07249-7","url":null,"abstract":"<div><p>High-temperature strengthening of iron aluminides is achieved through forging powder technology, utilizing a combination of several structural factors. Milling the initial powder accelerates phase formation during the early stages of heating, contributing to an anisotropic fine-grained microstructure that retains the shape and size of the milled powder particles. Molybdenum micro-additives inhibit diffusion processes during high-temperature deformation, while segregation along boundaries and the distribution of ultra-fine complex oxide particles, formed in situ during mechanical activation and thermomechanical processing, enhance the dispersed strengthening mechanism. Optimizing the thermomechanical processing regimes further strengthens these structural factors. After forging at 1100°C, molybdenum-doped alloys exhibit higher low-temperature strength but show reduced fracture toughness and a tendency to delaminate. Subsequent annealing at 1300°C corrects these defects, though increasing the grain size and second-phase particles. The optimal structure and mechanical properties are achieved by triple forging at 1200°C, under conditions near dynamic recrystallization, and demonstrate a high room-temperature strength of 1600–1900 MPa. Molybdenum-doped alloys show an ultimate strength of 300–330 MPa when stretched at 700°C. The creep rate at 750°C decreases to 8.4 × 10<sup>−7</sup> s<sup>−1</sup> for the 2% Mo alloy and 3.7 × 10<sup>−7</sup> s<sup>−1</sup> for the 5% Mo alloy, comparable to modern austenitic steels.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 4","pages":"1940 - 1953"},"PeriodicalIF":2.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Improving Mechanical Properties and Grain Refinement Mechanism of a High-Speed Extruded Zn-Free Mg-5.2Al-0.37Mn (Mass%) Alloy Using Large Extrusion Ratio 大挤压比提高高速挤压无锌Mg-5.2Al-0.37Mn(质量%)合金力学性能及晶粒细化机理
IF 2.1 4区 材料科学
JOM Pub Date : 2025-02-24 DOI: 10.1007/s11837-025-07236-y
T. Nakata, T. Ohkawa, S. Kanitani, Y. Matsumoto, M. Ogawa, K. Shimizu, S. Kamado
{"title":"Improving Mechanical Properties and Grain Refinement Mechanism of a High-Speed Extruded Zn-Free Mg-5.2Al-0.37Mn (Mass%) Alloy Using Large Extrusion Ratio","authors":"T. Nakata,&nbsp;T. Ohkawa,&nbsp;S. Kanitani,&nbsp;Y. Matsumoto,&nbsp;M. Ogawa,&nbsp;K. Shimizu,&nbsp;S. Kamado","doi":"10.1007/s11837-025-07236-y","DOIUrl":"10.1007/s11837-025-07236-y","url":null,"abstract":"<div><p>A commercial Mg-5.2Al-0.37Mn alloy (mass%, AM50) alloy was extruded using different extrusion speeds (3.5 m/min and 8.7 m/min) and ratios (20 and 50). The effect of the extrusion conditions on the mechanical properties and microstructures were evaluated. When the extrusion ratio of 20 was used, the extrusion at the high speed of 8.7 m/min resulted in grain coarsening. The 0.2% proof stresses in tension and compression (TPS and CPS) decreased to 187 MPa and 137 MPa, respectively, causing a large anisotropy (CPS/TPS = 0.73). In contrast, using the extrusion ratio of 50 was effective in refining grain structures even after the extrusion at the high speed, which contributed to the TPS of 208 MPa, CPS of 171 MPa, and an improved anisotropy of CPS/TPS = 0.82. Finite element modeling revealed that the extrusion at the high speed resulted in a substantial increase in temperature, which led to coarsening of grain structures. However, the extrusion ratio of 50 was effective in introducing large plastic strain, and a large density of dislocations was introduced by an enhanced activity of pyramidal slip, contributing to a grain refinement despite a large increase in temperature.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 5","pages":"2825 - 2835"},"PeriodicalIF":2.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11837-025-07236-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Revealing the Impact of Initial Textures on Orientation Memory Effect During HCP → FCC → HCP Transformation in High-Purity Cobalt 揭示高纯钴在 HCP → FCC → HCP 转变过程中初始纹理对定向记忆效应的影响
IF 2.1 4区 材料科学
JOM Pub Date : 2025-02-18 DOI: 10.1007/s11837-025-07197-2
Yuhang Huang, Xinfu Gu, Jinjiang He, Junfeng Luo, Ziyi Zhu, Guojin Xu
{"title":"Revealing the Impact of Initial Textures on Orientation Memory Effect During HCP → FCC → HCP Transformation in High-Purity Cobalt","authors":"Yuhang Huang,&nbsp;Xinfu Gu,&nbsp;Jinjiang He,&nbsp;Junfeng Luo,&nbsp;Ziyi Zhu,&nbsp;Guojin Xu","doi":"10.1007/s11837-025-07197-2","DOIUrl":"10.1007/s11837-025-07197-2","url":null,"abstract":"<div><p>The orientation memory effect after the phase transformation (HCP → FCC → HCP) cycle was observed in high-purity cobalt with different initial textures using the in situ electron backscatter diffraction technique. Profuse &lt;111&gt;/60° twins are formed during the HCP to FCC phase transformation upon heating and subsequently transform back to original HCP grains after cooling. Unlike previously reported mechanisms in other alloy systems, such as phase transformation strain or residual parent phase, we found that the HCP variant grains maintain a Shoji-Nishiyama orientation relationship with neighboring FCC grains during the FCC to HCP transformation. This unique relationship lowers the nucleation barrier, leading to a remarkable orientation memory effect.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 5","pages":"2836 - 2843"},"PeriodicalIF":2.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Micro-texture and Stress Evolution Under Monotonic Tension in an Additively Manufactured Near-α Titanium Alloy 单调拉伸下增材制备近α钛合金的显微织构和应力演化
IF 2.1 4区 材料科学
JOM Pub Date : 2025-02-18 DOI: 10.1007/s11837-025-07130-7
Sita Choudhary, Gyan Shankar, Satyam Suwas
{"title":"Micro-texture and Stress Evolution Under Monotonic Tension in an Additively Manufactured Near-α Titanium Alloy","authors":"Sita Choudhary,&nbsp;Gyan Shankar,&nbsp;Satyam Suwas","doi":"10.1007/s11837-025-07130-7","DOIUrl":"10.1007/s11837-025-07130-7","url":null,"abstract":"<div><p>The yield strength (<i>σ</i><sub><i>y</i>.<i>s</i>.</sub>) of directed energy deposited near-<i>α</i> Ti-6Al-2Sn-4Zr-2Mo alloy exceeds 1000 MPa while possessing very low ductility of less than 10%. The possibility of enhancing the ductility without a significant decrease in the <i>σ</i><sub><i>y</i>.<i>s</i>.</sub> is via judicious heat treatment which transforms the as-built martensitic <i>α</i>′ into an <i>α</i>/<i>β</i> phase mixture, which has been examined in conjunction with the numerical investigation on the correlation between microstructure and mechanical properties. The resulting alloy deforms in a heterogeneous manner with stress and strain, partitioning in the <i>α</i> and <i>β</i> phases. Deformation heterogeneity at the micron scale plays a vital role in the damage initiation and, consequently, the fracture process. Crystal plasticity based on fast-Fourier transform (CPFFT) simulations were carried out to study the evolution of spatially heterogeneous stress and strain in the two phases and to identify the correlation between the spatial strain–stress heterogeneity and the global mechanical response. Simulation results show the evolution of higher von Mises stress in the hcp <i>α</i> phase than the bcc <i>β</i> phase. Plastic heterogeneity of the two phases leads to strain incompatibility at the <i>α</i>–<i>β</i> interfaces, leading to microcrack initiation. Simulations capture the effect of crystallographic orientation on the evolution of localized equivalent von Mises stress and strain.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 4","pages":"1905 - 1922"},"PeriodicalIF":2.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Study on the Recrystallized Microstructure Evolutions of Mg-Gd-Based Alloys Using Pre-aging and Element Substitution 利用预时效和元素置换研究镁钆基合金的再结晶微观结构演变
IF 2.1 4区 材料科学
JOM Pub Date : 2025-02-18 DOI: 10.1007/s11837-025-07210-8
Chun Xi, Xiang Jiang, Mingao Li, Taku Sakai, Xuyue Yang, Qinghuan Huo
{"title":"Study on the Recrystallized Microstructure Evolutions of Mg-Gd-Based Alloys Using Pre-aging and Element Substitution","authors":"Chun Xi,&nbsp;Xiang Jiang,&nbsp;Mingao Li,&nbsp;Taku Sakai,&nbsp;Xuyue Yang,&nbsp;Qinghuan Huo","doi":"10.1007/s11837-025-07210-8","DOIUrl":"10.1007/s11837-025-07210-8","url":null,"abstract":"<div><p>To improve the strength of Mg-Gd-based alloys, two important points must be considered. One is the grain refinement degree during hot processing, and the other is the thermal stability of fine grains during final annealing or cooling. In this work, six samples with three different compositions, Mg-13Gd (G13), Mg-9Gd-4Y (GW94), and Mg-10Gd-3Nd (GN103), and two different heat treatments, as-solutioned (AS) and as-aged (AA) states, were used to study the recrystallized microstructure evolutions. The results of hot compression at 753 K showed that the AA-type samples had higher recrystallization fractions compared to the AS-type samples. However, the results of annealing at 673 K showed that sharp grain growth occurred in the AA-G13 and AA-GW94 samples and that the yield strengths were much lower compared to the AS-type samples. The exciting finding was the excellent thermal stability in the AA-GN103 sample, reflected by the conspicuous co-segregation of Gd and Nd solutes at the grain boundaries. The AA-GN103 sample had no obvious grain growth even after annealing over 300 min, and it exhibited the highest yield strength. Therefore, the mixed additions of Gd and Nd are strongly recommended for developing Mg-RE alloys with high strength and thermal stability.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 5","pages":"2811 - 2824"},"PeriodicalIF":2.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Microstructural Evolution and Mechanical Performance of Magnesium-Niobium Composites with Potential for Biomedical Applications 具有生物医学应用潜力的镁铌复合材料的微结构演变和机械性能
IF 2.1 4区 材料科学
JOM Pub Date : 2025-02-18 DOI: 10.1007/s11837-025-07198-1
Rawad Yaqoub Aljabr, P. S. C. Bose
{"title":"Microstructural Evolution and Mechanical Performance of Magnesium-Niobium Composites with Potential for Biomedical Applications","authors":"Rawad Yaqoub Aljabr,&nbsp;P. S. C. Bose","doi":"10.1007/s11837-025-07198-1","DOIUrl":"10.1007/s11837-025-07198-1","url":null,"abstract":"<div><p>This study used the powder metallurgy technique to fabricate biocompatible niobium (Nb)-reinforced pure Mg matrix composites. The impact of Nb particulate contents (2.5 wt.%, 5 wt.%, 7.5 wt.%, 10 wt.%, 15 wt.%, and 20 wt.%) on the microstructure, density, mechanical properties and fracture behavior of the resulting composites was investigated. The results indicated a uniform distribution of Nb reinforcement particles with excellent interfacial bonding and minimal porosity. The addition of Nb slightly refined the grain structure. Mechanical tests revealed that dispersing Nb particles within the Mg matrix enhanced the composite's strength and hardness through load transfer, dislocation strengthening and grain boundary strengthening mechanisms. Furthermore, the even distribution of Nb reinforcements uniformly transferred load across the composite samples delaying fracture initiation and improving failure strain. Both pure Mg and Mg-Nb composites displayed a combination of brittle and shear fracture modes in their fracture behavior. The inclusion of 15 wt.% Nb significantly increased hardness (by 62%), compressive yield strength (by 89%), and failure strain (by 37.6%) compared to pure Mg.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 5","pages":"2779 - 2796"},"PeriodicalIF":2.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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