The diminishing positive effect of phosphorus on the creep behavior with the decrease of applied stress in a Ni-Fe-based alloy

doi:10.1016/j.matlet.2024.137269

IMR OpenIR

	The diminishing positive effect of phosphorus on the creep behavior with the decrease of applied stress in a Ni-Fe-based alloy
	Wu, Yunsheng 1; Wang, Changshuai 2,3; Guan, Xianjun 1; Hou, Jieshan 1; Wang, Shaogang 4; Guo, Yongan 1; Zhou, Lanzhang 1
通讯作者	Guo, Yongan(guoyongan@imr.ac.cn) ; Zhou, Lanzhang(lzz@imr.ac.cn)
	2024-11-15
发表期刊	MATERIALS LETTERS
ISSN	0167-577X
卷号	375 页码:5
摘要	Phosphorus can increase the creep and stress-rupture properties of the turbine disk materials served in high stress with short life. However, the effect of P on the creep of boiler tube in advanced ultra-supercritical power plants served in low stress with long life is still unknown. Combining the formula derivation and experimental analysis, the varying effects of P on the creep with the decrease of stress were clarified. The positive effect of P on prolonging the creep rupture life reduces with the decrease of creep stress, even vanishes when the creep stress decreases to 93 MPa, 133 MPa and 140 MPa in the alloy doping 100 ppm, 200 ppm and 400 ppm P, respectively. The degeneration of M23C6 and the dynamic segregation of P at grain boundary during long-term creep under low stress can decrease the deformation coordination between the adjacent grains and the grain boundary binding force, which makes the positive effect of phosphorus on the creep diminish.
关键词	Ni-Fe-based alloy Phosphorus Creep Stress
资助者	Joint Funds of the National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI	10.1016/j.matlet.2024.137269
收录类别	SCI
语种	英语
资助项目	Joint Funds of the National Natural Science Foundation of China[U23A6016] ; National Natural Science Foundation of China[51971216]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:001303124100001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/189512
专题	中国科学院金属研究所
通讯作者	Guo, Yongan; Zhou, Lanzhang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.State Key Lab Clean & Efficient Turbomachinery Pow, Deyang 618000, Peoples R China 3.Dongfang Elect Corp Dongfang Turbine Co Ltd, Deyang 618000, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yunsheng,Wang, Changshuai,Guan, Xianjun,et al. The diminishing positive effect of phosphorus on the creep behavior with the decrease of applied stress in a Ni-Fe-based alloy[J]. MATERIALS LETTERS,2024,375:5.
APA	Wu, Yunsheng.,Wang, Changshuai.,Guan, Xianjun.,Hou, Jieshan.,Wang, Shaogang.,...&Zhou, Lanzhang.(2024).The diminishing positive effect of phosphorus on the creep behavior with the decrease of applied stress in a Ni-Fe-based alloy.MATERIALS LETTERS,375,5.
MLA	Wu, Yunsheng,et al."The diminishing positive effect of phosphorus on the creep behavior with the decrease of applied stress in a Ni-Fe-based alloy".MATERIALS LETTERS 375(2024):5.