Re-recognition of the Effects of Phosphorus and Boron on the gamma '' and gamma ' Phases in IN718 Alloy

doi:10.1007/s40195-018-0786-5

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	Re-recognition of the Effects of Phosphorus and Boron on the gamma '' and gamma ' Phases in IN718 Alloy
	Zhang, An-Wen 1,2; Li, Yang 1; Zhang, Sha 1; Liu, Fang 1; Zhang, Wei-Hong 1; Yu, Lian-Xu 1; Sun, Wen-Ru 1
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2019-03-01
卷号	32 期号:3 页码:372-380
关键词	IN718 superalloy Phosphorus and boron gamma '' and gamma ' phases Hardness
ISSN号	1006-7191
DOI	10.1007/s40195-018-0786-5
通讯作者	Sun, Wen-Ru(wrsun@imr.ac.cn)
英文摘要	The effects of P and B on the matrix strength and precipitations of gamma ' and gamma '' phases in the grain interior were re-recognized in this study. The combination addition of P and B markedly accelerated the precipitations of gamma ' and gamma '' phases and strengthened the matrix of IN718 alloy when air-cooled from high temperature, while made no difference when water-quenched from high temperature. The effect of single addition of P on the precipitations of gamma '' and gamma ' phases was the same with that of the combination addition of P and B, while the single addition of B had no effect on the precipitations of the two phases. Therefore, it was P rather than B which accelerated the precipitations of gamma ' and gamma '' phases. P could take part in the precipitations of gamma ' and gamma '' phases, which was revealed by electrochemical extraction and quantitative analysis of chemical composition. It also revealed that P atoms were dissolved in the gamma matrix to a relatively high degree at the temperature that gamma ' and gamma '' phases began to precipitate, and consequently the precipitations of gamma ' and gamma '' phases were accelerated. The first-principle calculation indicated that P decreased the formation enthalpies of gamma ' and gamma '' phases when it occupied the Ni lattice sites in the two phases, which explained the effect of P on the gamma ' and gamma '' phases.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
WOS记录号	WOS:000462257400010
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132507]
专题	金属研究所_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
推荐引用方式 GB/T 7714	Zhang, An-Wen,Li, Yang,Zhang, Sha,et al. Re-recognition of the Effects of Phosphorus and Boron on the gamma '' and gamma ' Phases in IN718 Alloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(3):372-380.
APA	Zhang, An-Wen.,Li, Yang.,Zhang, Sha.,Liu, Fang.,Zhang, Wei-Hong.,...&Sun, Wen-Ru.(2019).Re-recognition of the Effects of Phosphorus and Boron on the gamma '' and gamma ' Phases in IN718 Alloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(3),372-380.
MLA	Zhang, An-Wen,et al."Re-recognition of the Effects of Phosphorus and Boron on the gamma '' and gamma ' Phases in IN718 Alloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.3(2019):372-380.