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12 RuT300的典型疲劳断口纵剖面 |
Fig.12 Longitudinal section of fatigue fracture for RuT300 (εt = 0.15%, Nf = 10000) (a) the macroscopic fracture profile induced by the main crack; (b) and (c) are the microstructures and cracks at b, c marked in Fig.12a, respectively |
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