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
刊名	Journal of Materials Science & Technology
	2003
卷号	19 期号:4 页码:289-291
关键词	phosphorus alloy GH4133 Stress Rupture property
ISSN号	1005-0302
中文摘要	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.
原文出处	://WOS:000184516200001
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/36025]
专题	金属研究所_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.