| Title |
Research Paper - Transformations - : Microstructure of Adiabatic Shear Band Formed by Ballistic Impact in a Weldalite 049 Alloy |
| Authors |
이창길(Chang Gil Lee); 박우진(Woo Jin Park); 이성학(Sung Hak Lee); 신광선(Kwang 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. |