Effect of phosphorus on stress rupture properties of GH4133 Ni-base superalloy

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	Effect of phosphorus on stress rupture properties of GH4133 Ni-base superalloy
	W. R. Sun; S. R. Guo; B. Y. Tong; D. Z. Lu; Y. Xu; X. N. Meng; N. Li; Z. Q. Hu
	2003
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	19 期号:4 页码:289-291
摘要	The effect of phosphorus on the stress rupture property of GH4133 alloy has been investigated and is compared with that of IN718 alloy. The GH4133 alloy is crept by dislocation movement. Phosphorus has a tendency to prolong the rupture life of some wrought superalloys by inhibiting the dislocation movement. If the phosphorus addition is too high, its effect on impairing the grain boundary cohesion overwhelms that on inhibiting the dislocation movement, and the life of the GH4133 alloy can be shortened. The two functions of inhibiting the dislocation movement and impairing the grain boundary cohesion determine that the optimum phosphorus content in the GH4133 alloy is around 0.011 wt pct. Phosphorus exhibits a greater effect on prolonging the rupture life of IN718 alloy than that of GH4133 alloy. The two alloys are crept by different mechanisms. The intergranular phosphorus-bearing phase is precipitated in the IN718 alloy, while not in the GH4133 alloy. The precipitation of the phosphorus bearing phase can balance the phosphorus segregation at the grain boundaries and allows a more remarkable effect of phosphorus on extending the rupture life of IN718 alloy.
部门归属	chinese acad sci, inst met res, dept superalloys, shenyang 110016, peoples r china.;sun, wr (reprint author), chinese acad sci, inst met res, dept superalloys, shenyang 110016, peoples r china
关键词	Phosphorus Alloy Gh4133 Stress Rupture Property
URL	查看原文
WOS记录号	WOS:000184516200001
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36025
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. R. Sun,S. R. Guo,B. Y. Tong,et al. Effect of phosphorus on stress rupture properties of GH4133 Ni-base superalloy[J]. Journal of Materials Science & Technology,2003,19(4):289-291.
APA	W. R. Sun.,S. R. Guo.,B. Y. Tong.,D. Z. Lu.,Y. Xu.,...&Z. Q. Hu.(2003).Effect of phosphorus on stress rupture properties of GH4133 Ni-base superalloy.Journal of Materials Science & Technology,19(4),289-291.
MLA	W. R. Sun,et al."Effect of phosphorus on stress rupture properties of GH4133 Ni-base superalloy".Journal of Materials Science & Technology 19.4(2003):289-291.