Dynamic Behaviors and Microstructure Evolution of Iron–Nickel Based Ultra-High Strength Steel by SHPB Testing

Iron−nickel based ultra-high strength steel (wt. 18~20% Ni) is characterized by its high strength and low thermal conductivity, and is normally used to make key components by forming and machining processes. The optimization of these processes is based on a deep understanding of the mechan...

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Main Authors:	Hongge Fu, Xibin Wang, Lijing Xie, Xin Hu, Usama Umer, Ateekh Ur Rehman, Mustufa Haider Abidi, Adham E. Ragab
Format:	Article
Language:	English
Published:	MDPI AG 2019-12-01
Series:	Metals
Subjects:	dynamic behavior dynamic recrystallization iron–nickel based ultra-high strength steel microstructure shpb
Online Access:	https://www.mdpi.com/2075-4701/10/1/62

id	doaj-cf0901fa2bba42939543ca9d6566bef2
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spelling	doaj-cf0901fa2bba42939543ca9d6566bef22020-11-25T02:05:15ZengMDPI AGMetals2075-47012019-12-011016210.3390/met10010062met10010062Dynamic Behaviors and Microstructure Evolution of Iron–Nickel Based Ultra-High Strength Steel by SHPB TestingHongge Fu0Xibin Wang1Lijing Xie2Xin Hu3Usama Umer4Ateekh Ur Rehman5Mustufa Haider Abidi6Adham E. Ragab7Beijing Institute of Technology, School of Mechanical Engineering, Beijing 100081, ChinaBeijing Institute of Technology, School of Mechanical Engineering, Beijing 100081, ChinaBeijing Institute of Technology, School of Mechanical Engineering, Beijing 100081, ChinaBeijing Institute of Technology, School of Mechanical Engineering, Beijing 100081, ChinaAdvanced Manufacturing Institute, King Saud University, Riyadh 11421, Saudi ArabiaIndustrial Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saudi ArabiaAdvanced Manufacturing Institute, King Saud University, Riyadh 11421, Saudi ArabiaIndustrial Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saudi ArabiaIron−nickel based ultra-high strength steel (wt. 18~20% Ni) is characterized by its high strength and low thermal conductivity, and is normally used to make key components by forming and machining processes. The optimization of these processes is based on a deep understanding of the mechanical and dynamic behaviors under high strain, high strain rate, and high temperature. In this paper, the relationship of stress to strain, strain rate, and temperature is systematically investigated by the dynamic compression tests combined with quasi-static compression tests, and the hardening and softening is associated with the transformation in microstructures. According to the analysis, dynamic recrystallization around 600 °C is assumed to be one important influencing factor, hence hot deformation equations are established and the critical strain for dynamic recrystallization and the volume fraction of the dynamic recrystallized grains are defined.https://www.mdpi.com/2075-4701/10/1/62dynamic behaviordynamic recrystallizationiron–nickel based ultra-high strength steelmicrostructureshpb
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Hongge Fu Xibin Wang Lijing Xie Xin Hu Usama Umer Ateekh Ur Rehman Mustufa Haider Abidi Adham E. Ragab
spellingShingle	Hongge Fu Xibin Wang Lijing Xie Xin Hu Usama Umer Ateekh Ur Rehman Mustufa Haider Abidi Adham E. Ragab Dynamic Behaviors and Microstructure Evolution of Iron–Nickel Based Ultra-High Strength Steel by SHPB Testing Metals dynamic behavior dynamic recrystallization iron–nickel based ultra-high strength steel microstructure shpb
author_facet	Hongge Fu Xibin Wang Lijing Xie Xin Hu Usama Umer Ateekh Ur Rehman Mustufa Haider Abidi Adham E. Ragab
author_sort	Hongge Fu
title	Dynamic Behaviors and Microstructure Evolution of Iron–Nickel Based Ultra-High Strength Steel by SHPB Testing
title_short	Dynamic Behaviors and Microstructure Evolution of Iron–Nickel Based Ultra-High Strength Steel by SHPB Testing
title_full	Dynamic Behaviors and Microstructure Evolution of Iron–Nickel Based Ultra-High Strength Steel by SHPB Testing
title_fullStr	Dynamic Behaviors and Microstructure Evolution of Iron–Nickel Based Ultra-High Strength Steel by SHPB Testing
title_full_unstemmed	Dynamic Behaviors and Microstructure Evolution of Iron–Nickel Based Ultra-High Strength Steel by SHPB Testing
title_sort	dynamic behaviors and microstructure evolution of iron–nickel based ultra-high strength steel by shpb testing
publisher	MDPI AG
series	Metals
issn	2075-4701
publishDate	2019-12-01
description	Iron−nickel based ultra-high strength steel (wt. 18~20% Ni) is characterized by its high strength and low thermal conductivity, and is normally used to make key components by forming and machining processes. The optimization of these processes is based on a deep understanding of the mechanical and dynamic behaviors under high strain, high strain rate, and high temperature. In this paper, the relationship of stress to strain, strain rate, and temperature is systematically investigated by the dynamic compression tests combined with quasi-static compression tests, and the hardening and softening is associated with the transformation in microstructures. According to the analysis, dynamic recrystallization around 600 °C is assumed to be one important influencing factor, hence hot deformation equations are established and the critical strain for dynamic recrystallization and the volume fraction of the dynamic recrystallized grains are defined.
topic	dynamic behavior dynamic recrystallization iron–nickel based ultra-high strength steel microstructure shpb
url	https://www.mdpi.com/2075-4701/10/1/62
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Dynamic Behaviors and Microstructure Evolution of Iron–Nickel Based Ultra-High Strength Steel by SHPB Testing

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