발간논문

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Vol.34, No.9, 1108 ~ 1116, 1996
Title
Research Paper - Transformations - : Microstructure of Adiabatic Shear Band Formed by Ballistic Impact in a Weldalite 049 Alloy
이창길Chang Gil Lee, 박우진Woo Jin Park, 이성학Sung Hak Lee, 신광선Kwang Seon Shin
Abstract
The microstructural development of the adiabatic shear band formed by ballistic impact studied in a Weldalite 049 alloy. The microstructure of the adiabatic shear band was examined by optical and transmission electron microscopy, revealing the existence of fine, equiaxed grains within the adiabatic shear band. This microstructure was considered to be formed in an extremely short time by the combined effects of the highly localized shear deformation and a high temperature rise occurred with the shear band. Dynamic recrystallization is suggested as a possible mechanism to explain the microstructural development of the adiabatic shear band. Although thermal effects were apparent, no evidence was found to support the melting of the alloy.
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