☆ 4.7 Article

Microstructures and mechanical properties of as-cast and as-extruded Mg-4.50Zn-1.13Ca (wt%) alloys

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2013)

获取全文
添加到收藏夹

期刊

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷 576, 期 -, 页码 6-13

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2013.03.034

关键词

Mg-Zn-Ca alloy; Extrusion; Texture; Mechanical properties

类别

Nanoscience & Nanotechnology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering

资金

  1. International Cooperation Key Project
  2. Ministry of Science and Technology (MOST), China [2010DFB50210]
  3. National Key Technology R&D Program in the 12th Five-year Plan of China [2011BAE22B00]
  4. National Key Basic Research Program of China [2011CB612200, 2013CB632200]
  5. National Nature Science Foundation of China [51271063]

向作者/读者索取更多资源

Protocol

社区支持

Reagent

社区支持

A large Mg-4.50Zn-1.13Ca (wt%) alloy ingot 350 mm in diameter and 1730 mm long was successfully fabricated by semi-continuous casting. The microstructures and mechanical properties of the as-cast and as-extruded alloys were investigated. The as-cast alloy exhibits uniform chemical composition and microstructure from the centre to the surface of the ingot and mainly consists of alpha-Mg and Ca2Mg6Zn3. The coarse grains and network-like second phases that are distributed at the grain boundaries result in poor mechanical properties for the as-cast alloy. The mechanical properties of the as-extruded alloys are significantly enhanced. The high yield strengths of the as-extruded alloys mainly result from the fine DRXed grain and the stronger basal texture. (C) 2013 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Materials Science, Multidisciplinary

Microstructure and mechanical properties of magnesium matrix composite reinforced with carbon nanotubes by ultrasonic vibration

Cheng-Dong Li, Xiao-Jun Wang, Wei-Qing Liu, Ku Wu, Hai-Long Shi, Chao Ding, Ming-Yi Zheng

Summary: A novel approach to fabricate bulk carbon nanotube-reinforced Mg matrix composites with uniform carbon nanotubes has been successfully developed. The approach involves pre-dispersion and ultrasonic vibration, resulting in the homogeneous distribution of single carbon nanotubes in the composites. The presence of carbon nanotubes significantly improves the mechanical properties of the composites and achieves good interfacial bonding with the matrix.

RARE METALS (2022)

添加到收藏夹
Article Metallurgy & Metallurgical Engineering

Corrosion behavior of a Mg-Zn-Ca-La alloy in 3.5 wt% NaCl solution

Yuzhou Du, Xin Wang, Dongjie Liu, Wanting Sun, Bailing Jiang

Summary: The present study investigates the corrosion behavior of a Mg-Zn-Ca-La alloy. Results indicate that the corrosion resistance is enhanced by rolling deformation and subsequent annealing treatment significantly. The microstructure, distribution of second phase, and grain orientation are the main factors affecting corrosion properties.

JOURNAL OF MAGNESIUM AND ALLOYS (2022)

添加到收藏夹
Article Metallurgy & Metallurgical Engineering

Role of extrusion rate on the microstructure and tensile properties evolution of ultrahigh-strength low-alloy Mg-1.0Al-1.0Ca-0.4Mn (wt.%) alloy

X. Q. Liu, X. G. Qiao, R. S. Pei, Y. Q. Chi, L. Yuan, M. Y. Zheng

Summary: The influence of extrusion rate on the microstructure and mechanical properties of the AXM1104 alloy was studied. With increasing extrusion rate, the grain size and particles diameter increased, while the grain boundary segregation and basal fiber texture decreased. The tensile yield strength decreased and the elongation to failure increased as the extrusion rate increased.

JOURNAL OF MAGNESIUM AND ALLOYS (2023)

添加到收藏夹
Article Metallurgy & Metallurgical Engineering

Improvement of strength and ductility synergy in a room-temperature stretch-formable Mg-Al-Mn alloy sheet by twin-roll casting and low-temperature annealing

T. Nakata, C. Xu, K. Kaibe, Y. Yoshida, K. Yoshida, S. Kamado

Summary: Strength and ductility of an Mg-3%Al-Mn alloy sheet were improved using twin-roll casting and low-temperature annealing, resulting in excellent tensile properties and stretch formability.

JOURNAL OF MAGNESIUM AND ALLOYS (2022)

添加到收藏夹
Article Materials Science, Multidisciplinary

Combining gradient structure and supersaturated solid solution to achieve superior mechanical properties in WE43 magnesium alloy

Wanting Sun, Bo Wu, Hui Fu, Xu-Sheng Yang, Xiaoguang Qiao, Mingyi Zheng, Yang He, Jian Lu, San-Qiang Shi

Summary: Surface mechanical attrition treatment was used to produce a gradient nanostructured layer on WE43 magnesium alloy, resulting in enhanced mechanical properties with exceptional strain hardening effects.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2022)

添加到收藏夹
Article Nanoscience & Nanotechnology

Improved strength in wrought Mg-Y-Ni alloys by adjusting the block-shaped LPSO phase and plate-shaped γ' phase

S. Z. Wu, X. G. Qiao, S. H. Qin, Y. Q. Chi, M. Y. Zheng

Summary: The microstructure and mechanical properties of Mg-Y-Ni alloys with different volume fractions of block-shaped LPSO phase and number densities of plate-shaped gamma' phase were investigated. It was found that the increased volume fraction of LPSO phase improved the tensile yield strength of the alloys, while the plate-shaped gamma' phase also provided effective strengthening. The alloy with the highest volume fraction of block-shaped LPSO phase and number density of plate-shaped gamma' phase exhibited superior tensile yield strength after extrusion.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2022)

添加到收藏夹
Article Chemistry, Physical

A green and efficient method for preparing graphene using CO2@Mg in-situ reaction and its application in high-performance lithium-ion batteries

Shuaihu Wei, Hailong Shi, Xuejian Li, Xiaoshi Hu, Chao Xu, Xiaojun Wang

Summary: This study presents a simple and cost-effective approach to fabricate few-layer graphene through the reaction between Mg melt and CO2 gas. The graphene produced has high graphitization degree and small thickness. When used as lithium storage materials, the graphene exhibits excellent rate capability and cycling performance.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

添加到收藏夹
Article Chemistry, Physical

Investigation on the microstructure, texture and mechanical properties of Mg-Gd-Y(-Zn)-Zr alloys under indirect extrusion

Yuanqing Chi, Jinwei Liu, Zhijie Zhou, Shouzhong Wu, Weiqing Liu, Mingyi Zheng

Summary: This study mainly investigates the microstructure, texture, and mechanical properties of Mg-Gd-Y alloys (Mg-8.5Gd-2.5Y-0.3Zr (wt%) (0Zn) and Mg-8.5Gd-2.5Y-0.5Zn-0.3Zr (wt%) (0.5Zn) alloys) under indirect extrusion at different temperatures. The addition of 0.5 wt% Zn promotes the dynamic precipitation of beta-Mg5RE phases, resulting in a well-distributed distribution in the 0.5Zn alloy compared to a local distribution in the 0Zn alloy. The presence of zinc and the extrusion temperature influence the texture formation and mechanical properties.

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Effects of Long-Period Stacking-Order Phase on the Corrosion Behavior of an Mg-Gd-Y-Zn-Zr Alloy

Wei Du, Yuzhou Du, Zhenlei Yang, Bo Ma, Yanfeng Ge, Bailing Jiang

Summary: This paper investigates the role of long-period stacking-order (LPSO) structure on the corrosion behavior of an Mg-Gd-Y-Zn-Zr alloy. It is found that the LPSO phase deteriorates the corrosion properties of the alloy, mainly through galvanic corrosion.

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2023)

添加到收藏夹
Article Engineering, Industrial

Achievement of high strength and good ductility in the large-size AZ80 Mg alloy using a designed multi-directional forging process and aging treatment

Zijian Zhang, Lin Yuan, Mingyi Zheng, Qinghe Wei, Debin Shan, Bin Guo

Summary: This study developed a large-scale AZ80 magnesium alloy sample through a two-step MDF process and artificial aging. The sample exhibits uniform mechanical properties and good plasticity, making it suitable for load-bearing components. Furthermore, this process can benefit the general application of magnesium alloys since the excellent mechanical properties do not rely on the addition of specific elements.

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Microstructure evolution and mechanical properties of Mg-LPSO two phase Mg96Y2Ni2 (at. %) alloy processed by hot extrusion and decreasing-temperature ECAP

S. Z. Wu, Y. Q. Chi, G. Garces, X. G. Qiao, M. Y. Zheng

Summary: The Mg96Y2Ni2 (at. %) alloy with a volume fraction of 50% of LPSO phase was processed by extrusion and ECAP. Different microstructures of bimodal alpha-Mg matrix and fully dynamic recrystallized matrix were obtained by controlling the processing parameters, and the relationship between microstructure and tensile properties was investigated. The extruded alloy at 390 degrees C showed ultrahigh tensile yield strength but low elongation to failure, while the alloy extruded at 450 degrees C exhibited a balanced strength-ductility behavior. Fully recrystallized ultra-fine Mg grains contributed to the increase of elongation to failure. This work provides theoretical guidance for developing Mg-LPSO two-phase alloys with excellent strength-ductility synergy.

MATERIALS CHARACTERIZATION (2023)

添加到收藏夹
Article Nanoscience & Nanotechnology

Superior ductility Mg-Mn extrusion alloys at room temperature obtained by controlling Mn content

C. C. Li, Z. H. Xia, X. G. Qiao, I. S. Golovin, M. Y. Zheng

Summary: The study investigated the influence of Mn content (0.4, 0.8, 1.2 wt.%) on the microstructure and mechanical properties of as-extruded dilute binary Mg-Mn alloys. Increasing Mn content resulted in a decrease in the volume fraction and size of dynamically recrystallized (DRXed) grains. Segregation of Mn atoms and nano alpha-Mn dynamical precipitates were observed at the grain boundaries, with the amount of precipitates increasing with Mn content. Tensile tests showed that Mn content significantly affected mechanical properties, with the Mg-0.8 wt.% Mn alloy exhibiting excellent ductility at room temperature.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2023)

添加到收藏夹
Article Engineering, Mechanical

Mechanical and Tribological Behavior of Austempered Ductile Iron (ADI) under Dry Sliding Conditions

Zhitao Hu, Yuzhou Du

Summary: A vertically continuous casting technique was used to produce a ductile iron pipe, and the tribological behavior of austempered ductile iron (ADI) was examined under various service conditions. The study found that ADI's tribological behaviors were significantly influenced by normal loads and sliding speeds. Spheroidal graphite was preferentially transferred from the matrix to the tribosurface in ADI under high normal loads, and high sliding speed accelerated the formation of the graphite lubricating layer. As a result, ADI's friction coefficient decreased with increasing normal load and sliding speed. The wear rate of ADI followed a similar trend, increasing with higher normal load and decreasing with higher sliding speed. The worn surface indicated that adhesive wear occurred at low sliding speeds, while abrasive wear was the primary wear mechanism at high sliding speeds.

LUBRICANTS (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Formation of Ultrafine Graphite Nodules in Ductile Iron and its Effects on Mechanical Properties

Chen Liu, Yuzhou Du, Pengchun Li, Xin Wang, Wanting Sun, Caiyin You, Bailing Jiang

Summary: The evolution of ductile iron with a martensitic matrix during annealing at 700°C was studied in this research. The results showed that ultrafine graphite nodules can be obtained in ductile iron through annealing treatment, and the number of nodules can be increased by extending the annealing time. The precipitation of ultrafine graphite nodules improves the strength and plasticity of ductile iron.

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2023)

添加到收藏夹
Article Materials Science, Multidisciplinary

Achieving exceptional ultrahigh-strength in low-alloy Mg-1Al-1Ca-0.4Mn (wt%) alloy by regulating bimodal microstructure

Xiaoqing Liu, Xiaoguang Qiao, Liyao Ye, Xianke Zhang, Mingyi Zheng

Summary: A Mg-1Al-1Ca-0.4Mn (AXM1104, wt%) alloy extruded at 250°C with a ram speed of 0.1 mm/s obtains a unique bimodal microstructure. The as-extruded alloy exhibits a high tensile yield strength of 474 MPa and a low ductility of 2.1%, surpassing conventionally extruded rare-earth-free Mg alloys reported so far. After annealing at 300°C for 10 min, the annealed alloy achieves a good strength-ductility balance, with a yield strength of 426 MPa and an elongation of 5.4%. The ultrahigh yield strength of the as-extruded alloy is attributed to the combined strengthening effect of grain boundary, dislocation, and texture, while the as-annealed alloy is mainly strengthened by both grain boundary strengthening and precipitation strengthening from planar Al2Ca nano phase.

MATERIALS TODAY COMMUNICATIONS (2023)

添加到收藏夹
Article Nanoscience & Nanotechnology

The role of parent austenite grain size on the variant selection and intervariant boundary network in a lath martensitic steel

Ahmad Mirzaei, Peter D. Hodgson, Xiang Ma, Vanessa K. Peterson, Ehsan Farabi, Gregory S. Rohrer, Hossein Beladi

Summary: This study investigated the influence of parent austenite grain refinement on the intervariant boundary network in a lath martensitic steel. It found that refining the parent austenite grain led to a decrease in the fraction of certain boundaries in the martensite and an increase in the connectivity of low energy boundaries, ultimately improving the impact toughness.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

The interdependence of the thermal and mechanical cycling behaviour in Ti2448 (Ti-24Nb-4Zr-8Sn, wt%)

N. L. Church, C. E. P. Talbot, L. D. Connor, S. Michalik, N. G. Jones

Summary: Metastable beta Ti alloys based on the Ti-Nb system have attracted attention due to their unique properties. However, the unstable cyclic behavior of these alloys has hindered their widespread industrial use. Recent studies have shown that internal stresses, including those from dislocations, may be responsible for this behavior. This study demonstrates that inter-cycle thermal treatments can mitigate the unstable cyclic behavior, providing a significant breakthrough in our understanding of Ti-Nb superelastic materials.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Ultrasonic-assisted soldering of SiC ceramic and aluminum alloy with a commercial inactive Sn3.0Ag0.5Cu solder

Di Zhao, Chenchen Zhao, Ziyang Xiu, Jiuchun Yan

Summary: This study proposes a novel strategy for achieving the bonding of SiC ceramic and Al alloy using ultrasound. The ultrasound promotes the dissolution of Al into the solder, activating the solder and triggering the interfacial reaction between SiC ceramic and solder. With increasing ultrasonic duration, the bonding between SiC and Al transitions from partial to full metallurgical bonding.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Effect of grain orientation and precipitates on the superelasticity of Fe-Ni-Co-Al polycrystalline alloys

Kang Du, Yang Zhang, Guangda Zhao, Tao Huang, Liyuan Liu, Junpeng Li, Xiyu Wang, Zhongwu Zhang

Summary: This paper systematically investigated the evolution of microstructure in Fe-Ni-Co-Al polycrystalline alloys and its effects on mechanical properties. The results revealed that the migration of grain boundaries in different processes is driven by different factors, which impacts the grain orientation and precipitate formation. In the process of directional recrystallization, grains with specific orientations grow in the grain boundary region and form the dominant orientation, while grains with lower migration rate form the minor orientation. The alloy produced through directional recrystallization exhibited good recoverable strain and superelastic strain, while the alloy produced through solid solution treatment showed no evident superelastic behavior.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Effect of thermomechanical processing on compressive mechanical properties of Ti-15Mo additively manufactured by laser metal deposition

Edohamen Awannegbe, Liang Chen, Yue Zhao, Zhijun Qiu, Huijun Li

Summary: This study employed laser metal deposition to additively manufacture Ti-15Mo wt% alloy, and subsequently subjected it to post-fabrication uniaxial thermomechanical processing. The results showed that different zones in the microstructure remained after processing, and deformation mechanisms mainly involved slip and martensite formation. The compressive mechanical properties were found to be dependent on strain rate, with higher flow stress and compressive strength observed at higher strain rates. Grain structure homogenisation was not achieved, leading to anisotropic tensile properties.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Crystallographic texture and the mechanical properties of API 5L X70 pipeline steel designated for an arctic environment

Reza Khatib Zadeh Davani, Enyinnaya George Ohaeri, Sandeep Yadav, Jerzy A. Szpunar, Jing Su, Michael Gaudet, Muhammad Rashid, Muhammad Arafin

Summary: This research aims to investigate the effect of roughing and finishing reductions on crystallographic texture. The results show significant heterogeneity in the centerline region, with higher intensity of certain textures. Drop Weight Tear Test indicates that steel specimens with lower and medium reductions exhibit superior low-temperature impact toughness compared to steel with higher reductions. The electrochemical hydrogen charging experiments confirm the presence of internal hydrogen cracks only in steel with lower and medium reductions.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Effect of Cr content in temperature-dependent mechanical properties and strain hardening of a twinning-induced plasticity steel

Flavio De Barbieri, Denis Jorge-Badiola, Rodrigo Allende, Karem Tello, Alfredo Artigas, Franco Perazzo, Henry Jami, Juan Perez Ipina

Summary: This study examines the effect of Cr additions on the mechanical behavior of TWIP steel at temperatures ranging from 25°C to 350°C. The results indicate that different temperature-dependent strengthening mechanisms, including mechanical twinning, Dynamic Strain Aging, and slip bands, are at play. The stacking fault energy (SFE) influences the percentage of mechanical twinning, which in turn affects the strain hardening rate.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Electron beam welding of L12-nanoparticle-strengthened strong and ductile medium-entropy alloys for cryogenic applications

Hanlin Peng, Siming Huang, Ling Hu, Bingbing Luo, Liejun Li, Ian Baker

Summary: This study explores the weldability, microstructures, and mechanical properties of two L1(2)-nanoparticle-strengthened medium-entropy alloys after electron beam welding (EBW). The results show that strong yet ductile defect-free joints were produced, with larger grain sizes in the fusion zones compared to the heat-affected zones and base materials. Both EBWed MEAs exhibited high yield strengths, high ultimate tensile strengths, and good fracture strains at 77 K. The V-doping improved the cryogenic mechanical properties of the TMT MEA.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Strain rate-dependent tensile deformation behavior and fracture mechanism of Mn-N bearing lean duplex stainless steel

Yongxin Wang, Lei Chen, Lizi Shao, Shuo Hao, Motomichi Koyama, Xingzhou Cai, Xiaocong Ma, Miao Jin

Summary: This study investigated the tensile deformation behavior of an Mn-N bearing lean duplex stainless steel with metastable austenite. The results showed that the strain rate had significant influence on the work hardening, strain-induced martensitic transformation, and fracture mechanism.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Recovery of sheet formability of cold-rolled pure titanium by cryogenic-deformation treatment

Jong Woo Won, Seulbi Lee, Hye-Jeong Choe, Yong-Taek Hyun, Dong Won Lee, Jeong Hun Lee

Summary: Cold-rolled pure titanium showed improved sheet formability after undergoing cryogenic-deformation treatment. This treatment increased the thinning capability of the titanium and suppressed cracking during sheet forming. The formation of twins during deformation contributed to high thinning capability and increased strength through grain refinement and dislocation accumulation.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Rapidly induced homogenization and microstructure control of Cu-15Ni-8Sn alloy by electropulsing treatment

Handong Li, Lin Su, Lijuan Wang, Yanbin Jiang, Jiahui Long, Gaoyong Lin, Zhu Xiao, Yanlin Jia, Zhou Li

Summary: Homogenization heat treatment is a key procedure in controlling the second phase, enhancing composition uniformity, and workability of as-cast Cu-15Ni-8Sn alloy. This study found that electropulsing treatment (EPT) can significantly reduce treatment temperature and time, improve elongation and overall mechanical properties of the alloy.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Study on the regulation of microstructure and mechanical properties of Cu-15Sn-0.3Ti alloy by a novel mechanical-heat-electricity synergistic method

Yuxuan Wang, Juntao Zou, Lixing Sun, Yunfei Bai, Zhe Zhang, Junsheng Cheng, Lin Shi, Dazhuo Song, Yihui Jiang, Zhiwei Zhang

Summary: A novel mechanical-heat-electricity synergistic method was proposed to enhance the mechanical properties of Cu-15Sn-0.3Ti alloy by forming annealing twins (ATs). The combination method of Rotary swaging (RS) and Electric pulse treatment (EPT) successfully induced recrystallization and refinement of the microstructure, leading to a significant increase in the strength of the alloy within a short time.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Ta-induced strengthening of CoCrNi-AlTi medium-entropy alloys via nanoscale heterogeneous coherent precipitate

Zhiyi Ding, Jiangtao Xie, Tong Wang, Aiying Chen, Bin Gan, Jinchao Song

Summary: This study demonstrated the Ta-induced strengthening of CoCrNi-AlTi MEAs using nanoscale heterogeneous coherent precipitates. The addition of Ta and aging treatments significantly enhanced the mechanical properties of the alloy, including yield strength, ultimate tensile strength, and elongation.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Microstructural evolution and deformation behavior of an interstitial TRIP high-entropy alloy under dynamic loading

Z. Y. You, Z. Y. Tang, B. Wang, H. W. Zhang, P. Li, L. Zhao, F. B. Chu, H. Ding

Summary: The mechanical properties and microstructural evolution of C-doped TRIP-assisted HEA under dynamic loading conditions were systematically investigated in this study. The results showed that dynamic tensile deformation led to an increase in yield strength and a decrease in ultimate tensile strength, with a trend towards increased total elongation. The primary deformation mechanisms shifted from TRIP and TWIP effects to deformation twinning and dislocations. The presence of carbides formed through C-doping hindered dislocation slip and promoted the activation of multiple twinning systems.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
Article Nanoscience & Nanotechnology

Strong resistance to shear instability in multilayered metallic composites by nanoscale amorphous-BCC crystalline interfaces

Feng Qin, Feihu Chen, Junhua Hou, Wenjun Lu, Shaohua Chen, Jianjun Li

Summary: Plastic instability in strong multilayered composites is completely suppressed by architecting nanoscale BCC Nb crystalline-amorphous CuNb interfaces.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2024)

添加到收藏夹
研讨会 海报 问题 讨论圈 基金 期刊 论文 科研社交 资讯集成 审稿人 关于我们 常见问题 移动App 隐私条款 使用条款
© Peeref 2019-2024. All rights reserved.