基于原位<strong>TEM</strong>拉伸的稀土<strong>H13</strong>钢塑性形变行为和断裂机制

基于原位TEM拉伸的稀土H13钢塑性形变行为和断裂机制

朱健¹, 张志豪¹^,²(

), 谢建新¹^,²

Plastic Deformation Behavior and Fracture Mechanism of Rare Earth H13 Steel Based on In Situ TEM Tensile Study

ZHU Jian¹, ZHANG Zhihao¹^,²(

), XIE Jianxin¹^,²

图9. 稀土H13钢原位拉伸试样主裂纹边缘G1和G2选区的马氏体和母相奥氏体取向分布
Color online
(a, d) parallel orientation relation between [ $1 ˉ 1 ˉ 1$ ]_α and [ $1 ˉ 01$ ]_γ directions (b, e) stereographic projection for parent austenite and martensite (c, f) parallel orientation relation between (011)_α plane and (111)_γ plane

Fig.9. Orientation distributions of martensite and parent austenite of selected areas G1 (a~c) and G2 (d~f) in Fig.8a near main crack of in situ tensile specimen of rare earth H13 steel