Distribution of Phosphorus and Its Effects on Precipitation Behaviors and Tensile Properties of IN718C Cast Superalloy

doi:10.1007/s40195-018-0834-1

IMR OpenIR

	Distribution of Phosphorus and Its Effects on Precipitation Behaviors and Tensile Properties of IN718C Cast Superalloy
	Zhang, An-Wen 1,2; Yang, Yan 3; Zhang, Sha 1; Zhang, Dong 3; Zhang, Wei-Hong 1; Han, Da-Wei 1; Qi, Feng 1; Tan, Yuan-Guo 1,2; Xin, Xin 1; Sun, Wen-Ru 1
通讯作者	Sun, Wen-Ru(wrsun@imr.ac.cn)
	2019-07-01
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	32 期号:7 页码:887-899
摘要	The effect of phosphorus on the precipitations of , and phases and associated tensile properties in IN718C alloy are investigated in this study. It is revealed that P atoms are dissolved in the grain interior to a relatively high degree and hence influence the precipitation behaviors in the grain interior and improve the tensile strength of IN718C alloy. and phases did not precipitate in the alloy without P addition during air cooling, while and phases precipitated in the grain interior during air cooling in the alloys with P addition, and the amounts of and phases increased with increasing P content. Therefore, the Vickers micro-hardness in the as-cast state increased gradually with increasing P content. In double-aging state, the sizes of and phases in the alloys with P addition were larger than that in the alloy without P addition, while the sizes were invariable when the P content (wt%) was higher than 0.015. Therefore, the micro-hardness and tensile strength of IN718C alloy treated by double aging increased first and then kept invariable with increasing P content. The precipitations of phases both in the grain interior and on grain boundaries were inhibited by P markedly. The inhibitory effect of P on phase enhanced gradually with increasing content of P, but the plasticity increased first and then decreased. What is more, the crack tended to propagate into the matrix around the particles (Laves phases and NbC carbides) in the alloys without P addition at the beginning of the tensile fracture, while it tended to propagate along the interfaces between the matrix and those particles in the alloys with P addition, which resulted from the synthetical effect of P on , and phases.
关键词	IN718C alloy Phosphorus and phases phase Tensile properties
资助者	National Key Research and Development program of China ; State Key Laboratory of Nickel and Cobalt Resources Comprehensive Utilization
DOI	10.1007/s40195-018-0834-1
收录类别	SCI
语种	英语
资助项目	National Key Research and Development program of China[2017YFB0701803] ; National Key Research and Development program of China[2016YFB0701403] ; State Key Laboratory of Nickel and Cobalt Resources Comprehensive Utilization
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000470973000011
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：6[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/321006/134019
专题	中国科学院金属研究所
通讯作者	Sun, Wen-Ru
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Coll Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.State Key Lab Nickel & Cobalt Resources Comprehen, Jinchang 737100, Peoples R China
推荐引用方式 GB/T 7714	Zhang, An-Wen,Yang, Yan,Zhang, Sha,et al. Distribution of Phosphorus and Its Effects on Precipitation Behaviors and Tensile Properties of IN718C Cast Superalloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(7):887-899.
APA	Zhang, An-Wen.,Yang, Yan.,Zhang, Sha.,Zhang, Dong.,Zhang, Wei-Hong.,...&Sun, Wen-Ru.(2019).Distribution of Phosphorus and Its Effects on Precipitation Behaviors and Tensile Properties of IN718C Cast Superalloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(7),887-899.
MLA	Zhang, An-Wen,et al."Distribution of Phosphorus and Its Effects on Precipitation Behaviors and Tensile Properties of IN718C Cast Superalloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.7(2019):887-899.