Flow Stress Behavior and Microstructure Evolution of Austenitic Stainless Steel with Low Copper Content during Hot Compression Deformation

In order to study the microstructure evolution and flow stress behavior of as cast antibacterial austenitic stainless steel containing 1.52 wt.% copper, Gleeble 3800 was used for thermal compression simulation test. Through OM and EBSD analysis, it is found that the dynamic recrystallization mechani...

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Autores principales:	Huaying Li, Lihong Gao, Yaohui Song, Lidong Ma, Haitao Liu, Juan Li, Guanghui Zhao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	austenitic stainless steel dynamic recrystallization hot compression hot deformation behavior Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/0103e1f73923446ca84a6e188f43c545
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spelling	oai:doaj.org-article:0103e1f73923446ca84a6e188f43c5452021-11-25T17:19:30ZFlow Stress Behavior and Microstructure Evolution of Austenitic Stainless Steel with Low Copper Content during Hot Compression Deformation10.3390/cryst111114082073-4352https://doaj.org/article/0103e1f73923446ca84a6e188f43c5452021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1408https://doaj.org/toc/2073-4352In order to study the microstructure evolution and flow stress behavior of as cast antibacterial austenitic stainless steel containing 1.52 wt.% copper, Gleeble 3800 was used for thermal compression simulation test. Through OM and EBSD analysis, it is found that the dynamic recrystallization mechanism of thermal deformation is mainly discontinuous dynamic recrystallization. With the increase of deformation temperature and deformation rate, the proportion of recrystallization nucleation gradually increases. The growth of twins relies on recrystallization and, at the same time, promotes dynamic recrystallization. Considering the influence of strain on flow stress, the strain compensation Arrhenius model is established according to the obtained stress-strain curve, and high accuracy is obtained. The correlation coefficient and average relative absolute error are 0.979 and 7.066% respectively. These results provide basic guidance for the technology of microstructure control and excellent mechanical properties of antibacterial stainless steel.Huaying LiLihong GaoYaohui SongLidong MaHaitao LiuJuan LiGuanghui ZhaoMDPI AGarticleaustenitic stainless steeldynamic recrystallizationhot compressionhot deformation behaviorCrystallographyQD901-999ENCrystals, Vol 11, Iss 1408, p 1408 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	austenitic stainless steel dynamic recrystallization hot compression hot deformation behavior Crystallography QD901-999
spellingShingle	austenitic stainless steel dynamic recrystallization hot compression hot deformation behavior Crystallography QD901-999 Huaying Li Lihong Gao Yaohui Song Lidong Ma Haitao Liu Juan Li Guanghui Zhao Flow Stress Behavior and Microstructure Evolution of Austenitic Stainless Steel with Low Copper Content during Hot Compression Deformation
description	In order to study the microstructure evolution and flow stress behavior of as cast antibacterial austenitic stainless steel containing 1.52 wt.% copper, Gleeble 3800 was used for thermal compression simulation test. Through OM and EBSD analysis, it is found that the dynamic recrystallization mechanism of thermal deformation is mainly discontinuous dynamic recrystallization. With the increase of deformation temperature and deformation rate, the proportion of recrystallization nucleation gradually increases. The growth of twins relies on recrystallization and, at the same time, promotes dynamic recrystallization. Considering the influence of strain on flow stress, the strain compensation Arrhenius model is established according to the obtained stress-strain curve, and high accuracy is obtained. The correlation coefficient and average relative absolute error are 0.979 and 7.066% respectively. These results provide basic guidance for the technology of microstructure control and excellent mechanical properties of antibacterial stainless steel.
format	article
author	Huaying Li Lihong Gao Yaohui Song Lidong Ma Haitao Liu Juan Li Guanghui Zhao
author_facet	Huaying Li Lihong Gao Yaohui Song Lidong Ma Haitao Liu Juan Li Guanghui Zhao
author_sort	Huaying Li
title	Flow Stress Behavior and Microstructure Evolution of Austenitic Stainless Steel with Low Copper Content during Hot Compression Deformation
title_short	Flow Stress Behavior and Microstructure Evolution of Austenitic Stainless Steel with Low Copper Content during Hot Compression Deformation
title_full	Flow Stress Behavior and Microstructure Evolution of Austenitic Stainless Steel with Low Copper Content during Hot Compression Deformation
title_fullStr	Flow Stress Behavior and Microstructure Evolution of Austenitic Stainless Steel with Low Copper Content during Hot Compression Deformation
title_full_unstemmed	Flow Stress Behavior and Microstructure Evolution of Austenitic Stainless Steel with Low Copper Content during Hot Compression Deformation
title_sort	flow stress behavior and microstructure evolution of austenitic stainless steel with low copper content during hot compression deformation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/0103e1f73923446ca84a6e188f43c545
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_version_	1718412448062504960

Flow Stress Behavior and Microstructure Evolution of Austenitic Stainless Steel with Low Copper Content during Hot Compression Deformation

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