The low-cycle fatigue deformation mechanisms of two single crystal superalloys at room temperature and 600 °C

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The low-cycle fatigue deformation mechanisms of two single crystal superalloys at room temperature and 600 °C

Zhang, Yaoli; Wang, Xinguang; Li, Jinguo; Cheng, Yin; Yang, Yanhong; Meng, Jie; Liu, Jinlai; Liu, Jide; Zhou, Yizhou; Sun, Xiaofeng

Scripta materialia, October 2019, 2019-10-00, 2019-10-01, Letnik: 171, Številka: C

Journal Article

The LCF behaviors of two Ni-based single-crystal superalloys at room temperature and 600 °C have been studied. Superalloy with 3 wt% Ru-containing (3Ru alloy) had more excellent fatigue performances than that of non-Ru superalloy (0Ru alloy). Microstructures observed by transmission electron microscope showed that 0Ru alloy exhibited slip bands with orthogonal slip directions after the test. (1ī1) 011 and (1ī1) 0ī1 slip systems were activated in plastic deformation process. While (111) 0ī1 and (1ī1) 0ī1 slip systems of 3Ru alloy were along the single slip direction. Therefore, adding alloying element Ru to the superalloy promoted uniform deformation and prolonged fatigue life. Display omitted

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Leto	Faktor vpliva		Izdaja		Kategorija		Razvrstitev
Leto	JCR	SNIP	JCR	SNIP	JCR	SNIP	JCR	SNIP

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