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

被引：0
作者：
Wang, Shuyi [1 ]
Zhang, Song [1 ]
Xu, Yonggang [2 ]
机构：
[1] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu, Peoples R China
[2] Southwest Jiaotong Univ, Chengdu, Peoples R China
来源：
MATERIALS TESTING | 2024年 / 66卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Al-Zn eutectoid damping alloy; hot deformation; microstructure; eta-Zn particles; hardness; EVOLUTION;
D O I：
10.1515/mt-2023-0293
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
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 eta-Zn distributing on alpha-Al matrix. There are two forms of eta-Zn particles in the eutectoid structure of the deformed alloy. The first type of eta-Zn particles (eta-Zn-I) have relatively large sizes and display irregular morphology; another type of eta-Zn particles (eta-Zn-II) have relatively small sizes and are characterized by dispersion distribution. There exist predominant eta-Zn-I particles at lower temperature and higher strain rate while dominant eta-Zn-II 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).
引用
收藏
页码：299 / 304
页数：6
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