Effects of Heat Treatment on Mechanical Properties and Microstructure Evolutions of Ti-5321 Alloy
This work presents a comprehensive study on the microstructure evolution and mechanical property under different heat treatment procedures of a new near β type titanium Ti-5321(Ti-5Al-3Mo-3V-2Cr-2Zr-1Nb-1Fe). Two solution temperatures(830°C and 900°C) and a group of aging temperatures(300-650°C) wer...
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2020-01-01
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doaj-a04e77b7ea29428a83f9fe398ce001002021-08-11T12:58:02ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013211103210.1051/matecconf/202032111032matecconf_ti2019_11032Effects of Heat Treatment on Mechanical Properties and Microstructure Evolutions of Ti-5321 AlloyNiu Jingzhe0Gub YuleiGuo Yanhua1Wuc WenjunWu Cong2Xinc SheweiChangb HuiZhou LianState Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong UniversityCollege of Materials Science and Engineering and Tech Institute for Advanced Materials, Nanjing Tech UniversityState Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong UniversityThis work presents a comprehensive study on the microstructure evolution and mechanical property under different heat treatment procedures of a new near β type titanium Ti-5321(Ti-5Al-3Mo-3V-2Cr-2Zr-1Nb-1Fe). Two solution temperatures(830°C and 900°C) and a group of aging temperatures(300-650°C) were carried out to investigate the influence of heat treatment on this new alloy. The strengthening mechanism of Ti-5321 after solution and aging treatment was discussed by analyzing the microstructure and its mechanical properties. The best ultimate tensile strength can be achieved to 1564 MPa with 5% on elongation when solution treated at 830°C and aging at 450°C for this new alloy. The lamellar and globular α grains can be found in all 830°C solution treated specimens which contribute to a better ductility. Ultra-fine α phase can be found in all low aging temperature treated specimens but will coarsen significantly when raising the aging temperature and thus increase the tensile strength and lower the ductility. All these results can provide a comprehensive guidance on heat treatment for this new near β type titanium in the future.https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_11032.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Niu Jingzhe Gub Yulei Guo Yanhua Wuc Wenjun Wu Cong Xinc Shewei Changb Hui Zhou Lian |
spellingShingle |
Niu Jingzhe Gub Yulei Guo Yanhua Wuc Wenjun Wu Cong Xinc Shewei Changb Hui Zhou Lian Effects of Heat Treatment on Mechanical Properties and Microstructure Evolutions of Ti-5321 Alloy MATEC Web of Conferences |
author_facet |
Niu Jingzhe Gub Yulei Guo Yanhua Wuc Wenjun Wu Cong Xinc Shewei Changb Hui Zhou Lian |
author_sort |
Niu Jingzhe |
title |
Effects of Heat Treatment on Mechanical Properties and Microstructure Evolutions of Ti-5321 Alloy |
title_short |
Effects of Heat Treatment on Mechanical Properties and Microstructure Evolutions of Ti-5321 Alloy |
title_full |
Effects of Heat Treatment on Mechanical Properties and Microstructure Evolutions of Ti-5321 Alloy |
title_fullStr |
Effects of Heat Treatment on Mechanical Properties and Microstructure Evolutions of Ti-5321 Alloy |
title_full_unstemmed |
Effects of Heat Treatment on Mechanical Properties and Microstructure Evolutions of Ti-5321 Alloy |
title_sort |
effects of heat treatment on mechanical properties and microstructure evolutions of ti-5321 alloy |
publisher |
EDP Sciences |
series |
MATEC Web of Conferences |
issn |
2261-236X |
publishDate |
2020-01-01 |
description |
This work presents a comprehensive study on the microstructure evolution and mechanical property under different heat treatment procedures of a new near β type titanium Ti-5321(Ti-5Al-3Mo-3V-2Cr-2Zr-1Nb-1Fe). Two solution temperatures(830°C and 900°C) and a group of aging temperatures(300-650°C) were carried out to investigate the influence of heat treatment on this new alloy. The strengthening mechanism of Ti-5321 after solution and aging treatment was discussed by analyzing the microstructure and its mechanical properties. The best ultimate tensile strength can be achieved to 1564 MPa with 5% on elongation when solution treated at 830°C and aging at 450°C for this new alloy. The lamellar and globular α grains can be found in all 830°C solution treated specimens which contribute to a better ductility. Ultra-fine α phase can be found in all low aging temperature treated specimens but will coarsen significantly when raising the aging temperature and thus increase the tensile strength and lower the ductility. All these results can provide a comprehensive guidance on heat treatment for this new near β type titanium in the future. |
url |
https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_11032.pdf |
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