Open Access System for Information Sharing

Login Library

 

Article
Cited 2 time in webofscience Cited 3 time in scopus
Metadata Downloads

Role of retained austenite on adiabatic shear band formation during high strain rate loading in high-strength bainitic steels

Title
Role of retained austenite on adiabatic shear band formation during high strain rate loading in high-strength bainitic steels
Authors
Jo, Min CheolKim, SelimSuh, Dong WooHong, Sung SukKim, Hong KyuSohn, Seok SuLee, Sunghak
Date Issued
Mar-2020
Publisher
ELSEVIER SCIENCE SA
Abstract
Adiabatic shear band (ASB) is a well-known structure formed during high strain-rate deformation in various metallic materials, and significantly affects dynamic properties as well as ballistic performance. Retained austenite contained in recently developed high-strength martensitic or bainitic armor steels usually triggers a TRansformation-Induced Plasticity (TRIP), which enhances a strain hardening capability. However, this TRIP effect on ASB formation has hardly been investigated yet. In this study, a laboratory-scale split Hopkinson pressure bar was utilized to describe the ASB formation behavior in four high-strength martensitic or bainitic armor steels. Their formation possibilities were then correlated with hardness, strength, and dynamic compressive properties coupled with the TRIP. This TRIP occurring under adequate austenite stability improved the strain hardening, sufficiently absorbed the dynamically applied energy, and effectively suppressed the ASB formation. These behaviors suggest the favorable utilization of retained austenite in high-strength armor steels for wide-range ballistic applications.
URI
http://oasis.postech.ac.kr/handle/2014.oak/103513
ISSN
0921-5093
Article Type
Article
Citation
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, vol. 778, page. 139118, 2020-03
Files in This Item:
There are no files associated with this item.

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher

이성학LEE, SUNG HAK
Dept of Materials Science & Enginrg
Read more

Views & Downloads

Browse