相关实验视频

Updated: May 20, 2025

Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory

Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory

Published on: March 7, 2018

微观结构的演化和机械性能双相AlCrFe₂Ni₂高透合金在高延伸率压缩下

Hang Yan¹, Yu Wang², Xilin Gan¹

¹Innovation & Interdisciplinary Institute of Low Carbon Metallurgical Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.

Materials (Basel, Switzerland)

|March 27, 2025

概括

这项研究探讨了应变速率如何影响AlCrFe2Ni2高合金.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
金工业是金工业的一个方面.

背景情况:

高合金 (HEAs) 具有独特的机械性能.
了解不同拉伸率下的变形机制对于HEA应用至关重要.

研究的目的:

研究应变速率对机械变形的影响.
在双相AlCrFe2Ni2HEA中分析微结构演变.
在准静态和动态压缩下描述合金的行为.

主要方法:

准静态压缩测试. 准静态压缩测试.
在各种应变速率 (1300-2100 s-1) 的动态压缩测试.
变形样本的微观结构分析.

主要成果:

合金AlCrFe2Ni2具有出色的压缩性能.
在近静态条件下,收益强度>600 MPa和压力强度>3000 MPa.
动态收益强度显示,随着应变速率的增加,几乎是线性增长.
由于相互竞争的硬化和软化机制,在动态负载下形成的亚亚巴特剪切带 (ASB).

结论:

AlCrFe2Ni2 HEA在一系列延展率上表现出强大的机械性能.
动态变形导致亚亚巴学剪带和动态再结晶.
应变速率显著影响了这个HEA的机械反应和微观结构的发展.

关键词:

附带式剪切带附带式剪切带动态压缩的动态压缩.高合金的高合金.微观结构的微观结构

更多相关视频

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature

Published on: September 23, 2018

相关概念视频

Microcracking in Concrete

Microcracking in Concrete

Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...