锯齿形切屑中存在两种形式的绝热剪切带，没有组织转变特征的形变带和组织明显细化的转变带。
There are two forms of adiabatic shear bands in the sawtooth chips, which are deformation bands with no organizational change and transformation bands with obvious organizational refinement.
弹孔周围的绝热剪切带沿主剪应力方向形成，与静态塑性变形滑移线方向接近，绝热剪切带上不均匀的变形将产生微裂纹和微孔洞。
An adiabatic shear band formed along the main shear stress around the penetrated hole is approximately consistent with the direction of plastic deformation slip lines in static state.
TEM观察表明绝热剪切带(asb)中心区域由30 - 70纳米的等轴晶组成。
TEM observation showed that the center of the adiabatic shear band (ASB) was composed of recrystallized nano-grains (about 30-70 nm in diameter).
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