Metals and Materials International最新文献_第4页

Role of Deformation Parameters, Delta Phase and Twin Boundaries on the Microstructural Evolution of Hot Deformed Nickel Superalloy 变形参数、δ相和孪晶界对热变形镍高温合金组织演变的影响

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-03-16 DOI: 10.1007/s12540-025-01920-z

Devi Prasad Moyye, S. S. Satheesh Kumar, D. Nagarajan, Vajinder Singh, Partha Ghosal, I. Balasundar

{"title":"Role of Deformation Parameters, Delta Phase and Twin Boundaries on the Microstructural Evolution of Hot Deformed Nickel Superalloy","authors":"Devi Prasad Moyye, S. S. Satheesh Kumar, D. Nagarajan, Vajinder Singh, Partha Ghosal, I. Balasundar","doi":"10.1007/s12540-025-01920-z","DOIUrl":"10.1007/s12540-025-01920-z","url":null,"abstract":"<p>Hot deformation behaviour of solution treated wrought nickel-based superalloy over wide temperature (800 °C, 850 °C, 900 °C and 950 °C) and strain rate (0.0003 s<sup>−1</sup>, 0.001 s<sup>−1</sup>, 0.01 s<sup>−1</sup>, 0.1 s<sup>−1</sup> and 1 s<sup>−1</sup>) regimes revealed continuous flow softening characteristics at higher strain rates and mixed steady state and flow softening behaviour at lower strain rates. The role of temperature, strain rate and strain on the hot deformation induced microstructural evolution evaluated employing detailed electron back scattered diffraction studies divulged complex dependence of dynamic recrystallization (DRX) kinetics. Enhancement in DRX kinetics is observed with increasing temperature and strain driven by improved grain boundary mobility and increased deformation stored energy respectively. Meanwhile, DRX is maximized at intermediate strain rate (0.001 s<sup>−1</sup>) and decreased DRX is revealed at higher (0.01 s<sup>−1</sup>) and lower (0.0003 s<sup>−1</sup>) strain rates. The revelation of necklace type microstructure along with serrated grain boundaries substantiated the dominance of discontinuous dynamic recrystallization and the absence of continuous dynamic recrystallization is manifested through the stabilized medium angle grain boundaries evolution. The role of twin boundaries in accelerating DRX is manifested through the gradual increase in twin boundary evolution with increasing DRX fraction. Moreover, the twin boundaries concomitantly evolved with increasing DRX fraction exhibited gradual decline in average misorientation deviation from the ideal twin boundary misorientation corroborating the role of twin boundaries driven DRX. The δ phase assisted particle stimulated DRX nucleation is manifested through the copious DRX nuclei formation in the vicinity of δ phase, meanwhile the δ phase aided grain boundary pinning is also corroborated.</p>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 10","pages":"3007 - 3028"},"PeriodicalIF":4.0,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128595","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}

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Microstructural and Wear Resistance Enhancement of Ti6Al4V Alloy via Oscillating Laser Deposition of WC Particles 振荡激光沉积WC颗粒增强Ti6Al4V合金组织及耐磨性

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-03-13 DOI: 10.1007/s12540-025-01932-9

Yan Fang, Xin Chen, Hongsheng Han, Yanli Su, Jianbo Lei, Yu Feng

{"title":"Microstructural and Wear Resistance Enhancement of Ti6Al4V Alloy via Oscillating Laser Deposition of WC Particles","authors":"Yan Fang, Xin Chen, Hongsheng Han, Yanli Su, Jianbo Lei, Yu Feng","doi":"10.1007/s12540-025-01932-9","DOIUrl":"10.1007/s12540-025-01932-9","url":null,"abstract":"<div><p>Additive manufacturing (AM) technologies are rapidly advancing, with Laser Directed Energy Deposition (L-DED) as a key application, frequently employing Gaussian lasers as the energy source. However, materials deposited via Gaussian laser deposition often exhibit significant temperature gradients and residual stresses, leading to defects such as cracking and deformation. In this study, Ti6Al4V and WC/Ti6Al4V alloys were fabricated using circular oscillation laser deposition and compared to those produced with Gaussian laser deposition. The research results indicate that the circular oscillation laser during deposition exhibits a stirring effect on the melt pool, suppressing the formation of elongated dendrites and promoting grain refinement. Under the impact of the high-energy laser beam, partial decomposition of WC into W and C leads to the formation of TiC and W₂C interface layers at the WC/matrix boundary, resulting in strong bonding properties. Additionally, uniformly distributed unmelted WC particles in the composite material effectively impede the growth of columnar dendrites. Compared to Ti6Al4V and WC/Ti6Al4V alloys produced via Gaussian laser deposition, specimens fabricated with circular oscillating laser deposition exhibited increases in microhardness of 9% and 6%, and reductions in wear rates of 22% and 77%, respectively. The Ti6Al4V composite containing 10 wt% WC prepared by Gaussian laser deposition exhibited exemplary corrosion resistance.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 10","pages":"2960 - 2975"},"PeriodicalIF":4.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128628","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}

引用次数: 0

Effect of Multi-Axial Compression and Annealing on Texture Evolution and Plastic Anisotropy in Cu-Zn Alloys 多轴压缩和退火对Cu-Zn合金织构演化和塑性各向异性的影响

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-03-12 DOI: 10.1007/s12540-025-01928-5

Taek-Kyun Jung, Je Pyo Hong, Chan-Ho Jeon, Young-Chul Park, Jong-Soo Kim, Mi-Sook Kim, Hyun-Jin Kim, Byeong Hong Jeong, Young-Chul Shin, Byungsu Shin, Soong-Keun Hyun, Yoon-Ok Park, Kwangtae Son, Chang-Hee Cho

{"title":"Effect of Multi-Axial Compression and Annealing on Texture Evolution and Plastic Anisotropy in Cu-Zn Alloys","authors":"Taek-Kyun Jung, Je Pyo Hong, Chan-Ho Jeon, Young-Chul Park, Jong-Soo Kim, Mi-Sook Kim, Hyun-Jin Kim, Byeong Hong Jeong, Young-Chul Shin, Byungsu Shin, Soong-Keun Hyun, Yoon-Ok Park, Kwangtae Son, Chang-Hee Cho","doi":"10.1007/s12540-025-01928-5","DOIUrl":"10.1007/s12540-025-01928-5","url":null,"abstract":"<div><p>This study examines the influence of Multi-Axial Compression (MAC) and annealing on texture evolution, grain boundary behavior, and plastic anisotropy in Cu-Zn alloys. The MAC process effectively reduces the formation of dominant copper- and brass-type textures by altering the strain path, promoting a more random texture distribution and reducing anisotropy. Texture Index (TI) values show that MAC significantly brings the alloy’s texture closer to ideal isotropy. During annealing, continuous recrystallization (RX) occurs, driven by organized dislocation structures with low dislocation arrangement indication <i>M*</i> values, which means disorderly arranged dislocations are first annihilated. Additionally, the formation of Σ3 coincident site lattice (CSL) boundaries plays a crucial role in suppressing grain growth, leading to a stable microstructure. The reduction in plastic anisotropy is confirmed by tensile test results, while conventional high electrical conductivity is maintained. The combined MAC and annealing processes demonstrate a promising method for improving the formability and retaining electrical performance of Cu-Zn alloys by controlling texture evolution and plastic anisotropy.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 10","pages":"3045 - 3061"},"PeriodicalIF":4.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128572","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}

引用次数: 0

Microstructure and Mechanical Properties Characteristics of 2319 Aluminum Alloy Fabricated Using Cold Metal Transfer Pulsed Advanced (CMT-PADV) Wire Arc Additive Manufacturing 冷金属转移脉冲先进（CMT-PADV）电弧增材制造2319铝合金的组织和力学性能

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-03-08 DOI: 10.1007/s12540-025-01927-6

WenZhuo Bian, Jun Wang, QianNing Li, JiaHao Lu, Kai Fu, Liang Zhang, HuiXia Wang

{"title":"Microstructure and Mechanical Properties Characteristics of 2319 Aluminum Alloy Fabricated Using Cold Metal Transfer Pulsed Advanced (CMT-PADV) Wire Arc Additive Manufacturing","authors":"WenZhuo Bian, Jun Wang, QianNing Li, JiaHao Lu, Kai Fu, Liang Zhang, HuiXia Wang","doi":"10.1007/s12540-025-01927-6","DOIUrl":"10.1007/s12540-025-01927-6","url":null,"abstract":"<div><p>This work examines the microstructure characteristics, evolution processes, and mechanical properties of wire arc additive manufactured specimens using cold metal transfer-pulse advanced (CMT-PADV). An arc extinguishing process occurs when the pulse cycle shifts to the cold metal transfer (CMT) cycle, resulting in a distinct microstructure known as \"regularly distributed grain bands\". Under thermal influence, the equiaxed dendrites in the upper region progressively transform into equiaxed grains with a random grain orientation. The microstructural precipitation process involves the sequential formation of G.P. zones (Guinier–Preston Zones), θ″ phases, θ′ phases, and θ phases. The initial three sub-stable phases introduce lattice distortion within the matrix, thereby enhancing the strengthening effects. Due to varying temperatures and thermal cycling, the sub-stable phase's composition changes, leading to a progressive increase in mechanical properties from the top to the bottom of the specimens. The ultimate tensile strength (UTS) of the thin wall gradually increased from 293.5 to 307.7 MPa, and the yield strength (YS) gradually increased from 127.4 to 134.2 MPa; the average elongation was recorded at 16%, with negligible variations. Furthermore, the alternating distribution of coarse and fine grains results in lower longitudinal properties compared to transverse properties. Specifically, the longitudinal UTS and YS decreased to 293.7 MPa and 123 MPa, respectively, while elongation reduced to 13.1%.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 10","pages":"3029 - 3044"},"PeriodicalIF":4.0,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128570","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}

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Dynamic Recrystallization Grain Identification for a Duplex-Phase Titanium Alloy Based on a Machine Learning Method 基于机器学习方法的双相钛合金动态再结晶晶粒识别

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-03-07 DOI: 10.1007/s12540-025-01925-8

Shuai Zhang, Haoyu Zhang, Jie Sun, Liyuan Yan, Chuan Wang, Ge Zhou, Lijia Chen

{"title":"Dynamic Recrystallization Grain Identification for a Duplex-Phase Titanium Alloy Based on a Machine Learning Method","authors":"Shuai Zhang, Haoyu Zhang, Jie Sun, Liyuan Yan, Chuan Wang, Ge Zhou, Lijia Chen","doi":"10.1007/s12540-025-01925-8","DOIUrl":"10.1007/s12540-025-01925-8","url":null,"abstract":"<div><p>Single-pass isothermal compression experiments for a duplex-phase titanium alloy (Ti–10V–5Al–2.5Fe–0.1B alloy) at 800–920 °C and strain rate of 0.0005–0.05 s<sup>−1</sup> were carried out. A dynamic recrystallization (DRX) grain identification method based on the optimized random forest model by sparrow search algorithm (SSA-RF) was used to identify DRX grains in the microstructure and realize the prediction of the degree of DRX in the microstructure under the new parameters. To verify the predictive ability of the SSA-RF model, the Extreme Gradient Boosting (XGBoost) model is introduced to identify DRX grains, and the prediction results are compared with those of the SSA-RF model. After statistically calculating the identified DRX grains, the research results show that the average relative absolute errors between the true and predicted values for DRX fraction and average DRX grain size are 9.43% and 14.04%, respectively, which are lower than those of the XGBoost model. The SSA-RF model has a higher precision in identifying DRX grains and predicting the degree of DRX at the new process parameters. In order to realize the prediction of DRX degree under new process parameters without experimental data, new data was constructed as the predicting data for the SSA-RF model based on the average grain size and the average length–diameter ratio data predicted by the SSA-RF model. The predicted results show that the errors between the predicted and true values for average DRX grain size and DRX fraction are 4.21 μm and 15.53%, respectively. The predicted results give a good indication of the true degree of DRX.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 10","pages":"2931 - 2945"},"PeriodicalIF":4.0,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128625","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}

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Synthesis and Characterization of Copper-Doped Fluorohydroxyapatite Coatings for Biomedical Applications: Influence of Simultaneous Anodizing Treatment on AZ31 Alloy Substrate and Ultrasonic Agitation During Electrodeposition Process 生物医学用掺铜氟羟基磷灰石涂层的合成与表征：同时阳极氧化处理对AZ31合金基体的影响及电沉积过程中超声搅拌的影响

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-03-06 DOI: 10.1007/s12540-025-01924-9

M.R. Akbarpour, F. Farajnezhad, A. H. Poureshagh, S. Moniri Javadhesari, H. S. Kim

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On the Characteristic Evaluation of Bimetallic Interface of Carbon Steel (EN31) and Aluminium (AA4043) for Wire Arc Additive Manufacturing 电弧增材制造用碳钢（EN31）与铝（AA4043）双金属界面特性评价

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-03-01 DOI: 10.1007/s12540-025-01919-6

Afsal Ahammed CP, Somnath Nandi, Amrit Raj Paul, B. Sreejith, Jose MJ, Manidipto Mukherjee

{"title":"On the Characteristic Evaluation of Bimetallic Interface of Carbon Steel (EN31) and Aluminium (AA4043) for Wire Arc Additive Manufacturing","authors":"Afsal Ahammed CP, Somnath Nandi, Amrit Raj Paul, B. Sreejith, Jose MJ, Manidipto Mukherjee","doi":"10.1007/s12540-025-01919-6","DOIUrl":"10.1007/s12540-025-01919-6","url":null,"abstract":"<div><p>This study investigated the formation of intermetallic compounds (IMCs) at the carbon steel (EN31)-aluminium (AA4043) interface, focusing on the influence of variable heat input on the intermetallic thickness (IMT), element diffusion, phase transformation, texture orientation and mechanical behavior. The research showed that a high current of 36 A and a low traverse speed of 13 mm/s result in a maximum IMT of 7.7 μm due to a significant heat input of 48 J/mm, promoting extensive iron (Fe) and aluminium (Al) diffusion. The Fe-Al interface predominantly consisted of binary IMC phases such as FeAl-B2, FeAl<sub>2</sub>, and Fe<sub>2</sub>Al<sub>5</sub>, as well as ternary IMC phases like Al<sub>2</sub>Fe<sub>3</sub>Si<sub>4</sub>, Al<sub>2</sub>(Fe, Si)<sub>3</sub>, and FeSi<sub>2</sub>Al<sub>3</sub>. FeAl grows towards the Fe side, and Fe<sub>2</sub>Al<sub>5</sub> dendrites grow towards the Al side. Si in the inter-dendritic liquid Al triggered the sequence L→L + Fe<sub>2</sub>Al<sub>5</sub>→ L + Fe<sub>2</sub>Al<sub>5</sub> + FeAl + Si → Fe<sub>2</sub>Al<sub>5</sub> + FeAl + FeSi<sub>2</sub>Al<sub>3</sub>. Higher elastic modulus (E) and phase hardness (H) values of the bimetallic interface were obtained with the condition where the FeAl: Fe<sub>2</sub>Al<sub>5</sub> ratio of 1:3 and an IMT of less than 4 μm are fulfilled, and it generally occurred at the lower heat input (≤ 43 J/mm). The results indicated that the interface developed at 43 J/mm has superior strength, reaching up to 73 MPa, 54% higher than the high heat input sample. However, the poor elongation suggested extreme brittleness due to continuous IMCs. Further research is needed to optimize interface characteristics by controlling the cooling rate, especially for cyclic and severe tensile loads applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 10","pages":"2901 - 2918"},"PeriodicalIF":4.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128573","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}

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Evaluation of Non-equi-biaxial Residual Stresses from the Surface Displacements Around a Single Indentation 从单个压痕周围的表面位移评估非等双轴残余应力

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-03-01 DOI: 10.1007/s12540-025-01923-w

Jong-hyoung Kim, Kyungyul Lee, Dongil Kwon, Gary S. Schajer

引用次数: 0

Improving the Strength and Ductility Balance of Al–Ca–(Fe, La, Ce) Ternary Eutectic Alloys by High-Pressure Torsion Processing and Subsequent Annealing 用高压扭转和后续退火改善Al-Ca - (Fe, La, Ce)三元共晶合金的强度和塑性平衡

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-02-26 DOI: 10.1007/s12540-025-01917-8

Stanislav O. Rogachev, E. A. Naumova, R. V. Sundeev, N. Yu. Tabachkova, M. Yu. Zadorozhny

{"title":"Improving the Strength and Ductility Balance of Al–Ca–(Fe, La, Ce) Ternary Eutectic Alloys by High-Pressure Torsion Processing and Subsequent Annealing","authors":"Stanislav O. Rogachev, E. A. Naumova, R. V. Sundeev, N. Yu. Tabachkova, M. Yu. Zadorozhny","doi":"10.1007/s12540-025-01917-8","DOIUrl":"10.1007/s12540-025-01917-8","url":null,"abstract":"<div><p>New ternary eutectic aluminum alloys, namely Al–6Ca–3Ce, Al–6Ca–3La, and Al–6Ca–1Fe (wt%) were studied in as-cast state as well as after the high-pressure torsion (HPT) processing and subsequent annealing. It was found that HPT (3 revolutions) formed a nanocrystalline grain/subgrain microstructure or a mixed nano- and submicrocrystalline grain/subgrain microstructure. Moreover, the numerous eutectic particles were refined down to the nanometer range, which led to the formation of multiple stress concentrators and embrittlement of the material. To improve ductility of the alloys, annealing treatment was used. It was shown that annealing at 350 °C (1 h) after HPT resulted in the multiple grain/subgrain growth and predominantly equiaxed grain microstructure formation in all alloys, as well as in the coarsening of some eutectic particles. This caused a decrease in stress concentration. As a result, the strength of the alloy increased and its ductility was restored. The ultimate tensile strength of the Al–6Ca–3Ce, Al–6Ca–3La, and Al–6Ca–1Fe alloys was 455, 422, and 377 MPa, respectively, which was 3.5, 2.2, and 2 times greater than in the as-cast alloys. The relative elongation of the Al–6Ca–3Ce, Al–6Ca–3La, and Al–6Ca–1Fe alloys was 2, 18, and 9%, respectively. Lanthanum, being part of the complex eutectic Al<sub>4</sub>(Ca, La), ensured high ductility of the alloy, both in the cast state and in the deformed and heat-treated state.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><img></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 10","pages":"2992 - 3006"},"PeriodicalIF":4.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128627","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}

引用次数: 0

Recent Progress in Developing Creep-Resistant Mg-Gd-Based Alloys 抗蠕变mg - gd基合金的研究进展

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-02-25 DOI: 10.1007/s12540-025-01918-7

Shuxia Ouyang, Qingfeng Wu, Rae Eon Kim, Jae Heung Lee, Jeong Ah Lee, Hyoung Seop Kim

{"title":"Recent Progress in Developing Creep-Resistant Mg-Gd-Based Alloys","authors":"Shuxia Ouyang, Qingfeng Wu, Rae Eon Kim, Jae Heung Lee, Jeong Ah Lee, Hyoung Seop Kim","doi":"10.1007/s12540-025-01918-7","DOIUrl":"10.1007/s12540-025-01918-7","url":null,"abstract":"<div><p>The relatively low creep resistance of magnesium (Mg) alloys limits their application in high-temperature environments. Mg-Gd-based alloys, however, exhibit exceptional creep resistance, making them promising candidates for such applications. This review comprehensively examines recent advancements in the characterization and optimization of Mg-Gd-based alloys, focusing on key factors influencing their creep resistance. Key strategies for improving creep resistance include precise composition optimization with rare-earth elements such as Y and Nd, combined with Zn, Ca, Mn, and Al elements to alter precipitation behavior and enhance thermal stability. Thermomechanical processing has emerged as a critical tool to further improve creep resistance by tailoring grain structure and precipitation states. Furthermore, the review highlights the integration of machine learning to predict and design creep-resistant alloys, enabling cost-effective and accelerated development pathways. The discussion extends to future perspectives in optimizing Mg-Gd-based alloys for diverse industrial applications. This work serves as a detailed guideline for researchers and engineers aiming to advance the field of high-temperature Mg alloy development.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 9","pages":"2513 - 2524"},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909715","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}

引用次数: 0