含1.4%Cu的HSLA钢的组织和力学性能
杜瑜宾1,2, 胡小锋1, 张守清1,2, 宋元元1, 姜海昌1, 戎利建1(
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Microstructure and Mechanical Properties of HSLA Steel Containing 1.4%Cu
DU Yubin1,2, HU Xiaofeng1, ZHANG Shouqing1,2, SONG Yuanyuan1, JIANG Haichang1, RONG Lijian1()
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图10. 1.4Cu钢室温冲击断口横截面的SEM像、应变分布图和裂纹在板条界面处萌生扩展示意图
Fig.10. SEM image of the area adjacent to the fracture (a), the strain distribution map (b) and the schematics illustrating the crack propagation initiated at lath boundary (c) of 1.4Cu steel tempered at 450 ℃ for 120 min after Charpy impact test
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