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Microstructural development of adiabatic shear bands formed by ballistic impact in a WELDALITE 049 alloy SCIE SCOPUS

Title
Microstructural development of adiabatic shear bands formed by ballistic impact in a WELDALITE 049 alloy
Authors
Lee, CGPark, WJLee, SShin, KS
Date Issued
1998-02
Publisher
MINERALS METALS MATERIALS SOC
Abstract
The object of the present study is to investigate the microstructural development of the adiabatic shear band formed by ballistic impact in a WELDALITE 049 alloy. The microstructure of the shear band was examined by optical microscopy and transmission electron microscopy. The results indicated that the adiabatic shear band consisted of fine recrystallized grains with a high dislocation density. This microstructure was considered to be formed in an extremely short time by the combined effects of the highly localized shear deformation and the high-temperature rise that occurred within the shear band. However, no precipitates could be observed in the interior of the grains, since the temperature rise in the shear band formation process was inferred to be above 460 degrees C and below the solidus temperature. Dynamic recrystallization was suggested as a possible mechanism to explain the microstructural development of the adiabatic shear band formed in the WELDALITE alloy.
URI
https://oasis.postech.ac.kr/handle/2014.oak/11423
DOI
10.1007/s11661-998-0128-8
ISSN
1073-5623
Article Type
Article
Citation
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, vol. 29, no. 2, page. 477 - 483, 1998-02
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이성학LEE, SUNG HAK
Dept of Materials Science & Enginrg
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