Effects of temperature and strain rate on the deformation microstructure and hardness of Al–Zn eutectoid damping alloy-Reference-Cited by-同舟云学术

Effects of temperature and strain rate on the deformation microstructure and hardness of Al–Zn eutectoid damping alloy

Published:2024-01-16 Issue:3 Volume:66 Page:299-304
ISSN:0025-5300
Container-title:Materials Testing
language:en
Short-container-title:

Author:

Wang Shuyi¹,Zhang Song¹,Xu Yonggang²

Affiliation:

1. Southwest Jiaotong University, School of Materials Science and Engineering , Chengdu , China

2. Southwest Jiaotong University , Chengdu , China

Abstract

Abstract The effects of temperature and strain rate on the deformation microstructure and hardness of Al–Zn eutectoid damping alloy was systematically investigated. The results show that the deformed alloy is mainly composed of eutectoid structure with η-Zn distributing on α-Al matrix. There are two forms of η-Zn particles in the eutectoid structure of the deformed alloy. The first type of η-Zn particles (η-ZnI) have relatively large sizes and display irregular morphology; another type of η-Zn particles (η-ZnII) have relatively small sizes and are characterized by dispersion distribution. There exist predominant η-ZnI particles at lower temperature and higher strain rate while dominant η-ZnII particles at higher temperature and lower strain rate. The hardness of the Al–Zn eutectoid damping alloy shows an overall rising trend with increase in temperature and decrease in strain rate. In particular, the highest hardness values (up to 113.07 HB) are obtained at 648 K/0.01 s−1.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Sichuan Province

Fundamental Research Funds for the Central Universities

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/mt-2023-0293/pdf

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