Abstract: In order to study the effect of cold drawn area reduction ratio on microstructure and properties of Inconel X-750 alloy, especially the effect on the shape, distribution, quantity and size of γ' phase, the X-750 wires which had 0%, 30%, 60% cross section reduction rate (CSRR) were prepared and subsequently aging-treated at 650 ℃, 730 ℃, 810 ℃, respectively. With the quantitative analysis, aging temperature had little effect on grain size but great effect on the quantity, size and shape of γ' phase. Nevertheless, CSRR had significant influence on the grain size of X-750 wires, and it played a major role in fine grain strengthening. The quantity and volume fraction of γ' precipitate could be improved to some extent, and the size could be diminished by increasing CSRR, which resulted in enhancing further precipitation strengthening effect.The X-750 wires were aging-treated at 730 ℃ for 16 hours by standard process, then after being processed into springs, they were made into some C-rings finally. Under the given experimental conditions,it was proved that both the rebound amount and leakage rate met the requirements and the sealing performance was favorable.
何钦生,邹兴政,李方,李征,唐锐,赵安中,. 冷拉减面率对C形环用Inconel X-750丝材组织性能的影响*[J]. 材料导报编辑部, 2017, 31(22): 100-106.
HE Qinsheng, ZOU Xingzheng, LI Fang, LI Zheng, TANG Rui, ZHAO Anzhong,. Effect of Cold Drawn Area Reduction on Microstructure and Properties of Inconel X-750 Wire Used for C Ring. Materials Reports, 2017, 31(22): 100-106.
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2017, Vol. 31 
