• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

纳米层状双相高熵合金中与相体积分数相关的强化

Phase Volume Fraction-Dependent Strengthening in a Nano-Laminated Dual-Phase High-Entropy Alloy.

作者信息

Huang Cheng, Yao Yin, Chen Shaohua

机构信息

Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China.

Beijing Key Laboratory of Lightweight Multifunctional Composite Materials and Structures, Beijing Institute of Technology, Beijing 100081, China.

出版信息

ACS Omega. 2022 Aug 18;7(34):29675-29683. doi: 10.1021/acsomega.2c02027. eCollection 2022 Aug 30.

DOI:10.1021/acsomega.2c02027
PMID:36061647
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9435032/
Abstract

A recently synthesized FCC/HCP nano-laminated dual-phase (NLDP) CoCrFeMnNi high entropy alloy (HEA) exhibits excellent strength-ductility synergy. However, the underlying strengthening mechanisms of such a novel material is far from being understood. In this work, large-scale atomistic simulations of in-plane tension of the NLDP HEA are carried out in order to explore the HCP phase volume fraction-dependent strengthening. It is found that the dual-phase (DP) structure can significantly enhance the strength of the material, and the strength shows apparent phase volume fraction dependence. The yield stress increases monotonously with the increase of phase volume fraction, resulting from the increased inhibition effect of interphase boundary (IPB) on the nucleation of partial dislocations in the FCC lamella. There exists a critical phase volume fraction, where the flow stress is the largest. The mechanisms for the volume fraction-dependent flow stress include volume fraction-dependent phase strengthening effect, volume fraction-dependent IPB strengthening effect, and volume fraction-dependent IPB softening effect, that is, IPB migration and dislocation nucleation from the dislocation-IPB reaction sites. This work can provide a fundamental understanding for the physical mechanisms of strengthening effects in face-centered cubic HEAs with a nanoscale NLDP structure.

摘要

最近合成的面心立方/六方密排纳米层状双相（NLDP）CoCrFeMnNi高熵合金（HEA）表现出优异的强度-延展性协同效应。然而，这种新型材料潜在的强化机制仍远未被理解。在这项工作中，对NLDP高熵合金的面内拉伸进行了大规模原子模拟，以探索与六方密排相体积分数相关的强化作用。研究发现，双相（DP）结构可显著提高材料强度，且强度呈现明显的相体积分数依赖性。屈服应力随相体积分数的增加而单调增加，这是由于相界（IPB）对面心立方薄片中部分位错形核的抑制作用增强所致。存在一个临界相体积分数，此时流变应力最大。与体积分数相关的流变应力机制包括与体积分数相关的相强化效应、与体积分数相关的相界强化效应以及与体积分数相关的相界软化效应，即相界迁移和从位错-相界反应位点形核的位错。这项工作可为具有纳米级NLDP结构的面心立方高熵合金强化效应的物理机制提供基本认识。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/e5c4ec0a7bab/ao2c02027_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/2a332b431232/ao2c02027_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/4c2c44ca6e24/ao2c02027_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/2e3abc916e1a/ao2c02027_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/6966e99e8f26/ao2c02027_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/567e7c88885d/ao2c02027_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/12246ef714ef/ao2c02027_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/db5f174df4b7/ao2c02027_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/e5c4ec0a7bab/ao2c02027_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/2a332b431232/ao2c02027_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/4c2c44ca6e24/ao2c02027_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/2e3abc916e1a/ao2c02027_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/6966e99e8f26/ao2c02027_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/567e7c88885d/ao2c02027_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/12246ef714ef/ao2c02027_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/db5f174df4b7/ao2c02027_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0e1b/9435032/e5c4ec0a7bab/ao2c02027_0009.jpg

相似文献

1
Phase Volume Fraction-Dependent Strengthening in a Nano-Laminated Dual-Phase High-Entropy Alloy.纳米层状双相高熵合金中与相体积分数相关的强化
ACS Omega. 2022 Aug 18;7(34):29675-29683. doi: 10.1021/acsomega.2c02027. eCollection 2022 Aug 30.
2
Plastic deformation and strengthening mechanism of FCC/HCP nano-laminated dual-phase CoCrFeMnNi high entropy alloy.面心立方/六方密排纳米层状双相CoCrFeMnNi高熵合金的塑性变形与强化机制
Nanotechnology. 2021 Oct 18;32(50). doi: 10.1088/1361-6528/ac2980.
3
The Exceptional Strong Face-centered Cubic Phase and Semi-coherent Phase Boundary in a Eutectic Dual-phase High Entropy Alloy AlCoCrFeNi.共晶双相高熵合金AlCoCrFeNi中异常强的面心立方相和半共格相界
Sci Rep. 2018 Oct 8;8(1):14910. doi: 10.1038/s41598-018-33330-0.
4
Nanoprecipitate-Strengthened High-Entropy Alloys.纳米沉淀强化高熵合金
Adv Sci (Weinh). 2021 Dec;8(23):e2100870. doi: 10.1002/advs.202100870. Epub 2021 Oct 22.
5
Mechanisms of chemical-reaction-induced tensile deformation of an Fe/Ni/Cr alloy revealed by reactive atomistic simulations.通过反应性原子模拟揭示的Fe/Ni/Cr合金化学反应诱导拉伸变形的机制
RSC Adv. 2023 Feb 27;13(10):6630-6636. doi: 10.1039/d2ra07039a. eCollection 2023 Feb 21.
6
Temperature-Dependent Superplasticity and Strengthening in CoNiCrFeMn High Entropy Alloy Nanowires Using Atomistic Simulations.利用原子模拟研究CoNiCrFeMn高熵合金纳米线中温度依赖的超塑性和强化
Nanomaterials (Basel). 2021 Aug 19;11(8):2111. doi: 10.3390/nano11082111.
7
A dual-phase alloy with ultrahigh strength-ductility synergy over a wide temperature range.一种在很宽温度范围内具有超高强度-延展性协同效应的双相合金。
Sci Adv. 2021 Aug 20;7(34). doi: 10.1126/sciadv.abi4404. Print 2021 Aug.
8
Superior Temperature-Dependent Mechanical Properties and Deformation Behavior of Equiatomic CoCrFeMnNi High-Entropy Alloy Additively Manufactured by Selective Laser Melting.选择性激光熔化增材制造的等原子CoCrFeMnNi高熵合金优异的温度依赖性力学性能和变形行为
Sci Rep. 2020 May 15;10(1):8045. doi: 10.1038/s41598-020-65073-2.
9
Preparation of nanostructured CoCrFeMnNi high entropy alloy by hot pressing sintering gas atomized powders.通过热压烧结气雾化粉末制备纳米结构的CoCrFeMnNi高熵合金。
Micron. 2021 Aug;147:103082. doi: 10.1016/j.micron.2021.103082. Epub 2021 May 15.
10
A micromechanical study on the effects of precipitation on the mechanical properties of CoCrFeMnNi high entropy alloys with various annealing temperatures.一种关于沉淀对不同退火温度的 CoCrFeMnNi 高熵合金力学性能影响的微机械研究。
Sci Rep. 2023 Feb 28;13(1):3379. doi: 10.1038/s41598-023-30508-z.

本文引用的文献

1
Plastic deformation and strengthening mechanism of FCC/HCP nano-laminated dual-phase CoCrFeMnNi high entropy alloy.面心立方/六方密排纳米层状双相CoCrFeMnNi高熵合金的塑性变形与强化机制
Nanotechnology. 2021 Oct 18;32(50). doi: 10.1088/1361-6528/ac2980.
2
Hierarchical crack buffering triples ductility in eutectic herringbone high-entropy alloys.分级裂纹缓冲使共晶鱼骨状高熵合金具有延展性。
Science. 2021 Aug 20;373(6557):912-918. doi: 10.1126/science.abf6986.
3
Bifunctional nanoprecipitates strengthen and ductilize a medium-entropy alloy.
双功能纳米沉淀物强化和延性化一种中熵合金。
Nature. 2021 Jul;595(7866):245-249. doi: 10.1038/s41586-021-03607-y. Epub 2021 Jul 7.
4
Intrinsic toughening and stable crack propagation in hexagonal boron nitride.六方氮化硼中的本征增韧和稳定裂纹扩展。
Nature. 2021 Jun;594(7861):57-61. doi: 10.1038/s41586-021-03488-1. Epub 2021 Jun 2.
5
Deformation Mechanisms and Remarkable Strain Hardening in Single-Crystalline High-Entropy-Alloy Micropillars/Nanopillars.单晶高熵合金微柱/纳米柱中的变形机制及显著的应变硬化
Nano Lett. 2021 Apr 28;21(8):3671-3679. doi: 10.1021/acs.nanolett.1c00444. Epub 2021 Mar 23.
6
Amorphization in extreme deformation of the CrMnFeCoNi high-entropy alloy.CrMnFeCoNi高熵合金极端变形中的非晶化
Sci Adv. 2021 Jan 29;7(5). doi: 10.1126/sciadv.abb3108. Print 2021 Jan.
7
Plastic Deformation and Hardening Mechanisms of a Nano-twinned Cubic Boron Nitride Ceramic.纳米孪晶立方氮化硼陶瓷的塑性变形与硬化机制
ACS Appl Mater Interfaces. 2020 Nov 4;12(44):50161-50175. doi: 10.1021/acsami.0c15275. Epub 2020 Oct 23.
8
Defect reconfiguration in a Ti-Al alloy via electroplasticity.通过电塑性实现钛铝合金中的缺陷重构。
Nat Mater. 2021 Apr;20(4):468-472. doi: 10.1038/s41563-020-00817-z. Epub 2020 Oct 5.
9
Strain localisation and failure at twin-boundary complexions in nickel-based superalloys.镍基高温合金中孪晶界形貌处的应变局部化与失效
Nat Commun. 2020 Sep 29;11(1):4890. doi: 10.1038/s41467-020-18641-z.
10
Natural-mixing guided design of refractory high-entropy alloys with as-cast tensile ductility.具有铸态拉伸延展性的耐火高熵合金的自然混合导向设计
Nat Mater. 2020 Nov;19(11):1175-1181. doi: 10.1038/s41563-020-0750-4. Epub 2020 Aug 24.