蠕墨铸铁RuT300和RuT450的低周疲劳性能和损伤机制

姜爱龙, 谭炳治, 庞建超, 石锋, 张允继, 邹成路, 李守新, 伍启华, 李小武, 张哲峰

Effect of Microstructure Characteristics of Compacted Graphite Cast Irons of RuT300 and RuT450 on Low-cycle Fatigue Properties and Damage Mechanisms

JIANG Ailong, TAN Bingzhi, PANG Jianchao, SHI Feng, ZHANG Yunji, ZOU Chenglu, LI Shouxin, WU Qihua, LI Xiaowu, ZHANG Zhefeng

图5 RuT300样品的拉伸断口[25]

Fig.5 Tensile fractographies of a RuT300 specimen[25]: (a) fracture morphology in macroscope; (b) ferrite; (c) pearlite; (d) defect