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
), 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
), XIE Jianxin1,2
图5. 拉伸杆行程由48.3 μm增加到110.7 μm时稀土H13钢原位拉伸试样微观组织形貌演化的TEM像
(a) microvoid initiated from GBs and dislocation pile-up at GBs
(b) dislocations across GBs and dislocation pile-up at carbides (c, d) dislocation wall, dislocation tangle and dislocation cell formed in different grains (e, f) newly formed dislocation pile-up at GBs and carbide
Fig.5. TEM images showing the microstructure evolutions of in situ tensile specimen of rare earth H13 steel during tensile process when tensile displacement increased from 48.3 μm to 110.7 μm (a~f), respectively
