Distribution and Effect of P and B on As-Cast Microstructure of Low Thermal Expansion Superalloy of Thermo-Span

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	Distribution and Effect of P and B on As-Cast Microstructure of Low Thermal Expansion Superalloy of Thermo-Span
	Sun Yaru 1,2; Sun Wenru 2; Sun Xiaofeng 2; Guo Shouren 2; Liu Zheng 1; Hu Zhuangqi 2
通讯作者	Sun Yaru(Yarusun@Yahoo.com.cn)
	2008-09-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	37 期号:9 页码:1582-1586
摘要	Using scanning electron microscope equipped with electron probe (EPMA) and thermal analytic measure equipment, the effect of trace element phosphorus and boron on as-cast microstructure of Thermo-Span alloy has been investigated. The results show that P and B trends to segregate at the center in the ingot, which caused the precipitation of Laves phases. When the content of phosphorus is 0.05% and boron 0.05%, phosphorus exists in Laves phase in Ti-P phase modified, and boron in B-Nb phase modified mainly segregates at eutectic Laves phase. By measuring the incipient melting temperature, it is found that there is no difference between adding phosphorus and without phosphorus. However, increasing boron content to 0.05%, the incipient melting temperature decreases significantly.
关键词	as-cast microstructure P, B thermo-span alloy incipient melting temperature
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000260146600017
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/94482
专题	中国科学院金属研究所
通讯作者	Sun Yaru
作者单位	1.Shengyang Univ Technol, Shenyang 110023, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Sun Yaru,Sun Wenru,Sun Xiaofeng,et al. Distribution and Effect of P and B on As-Cast Microstructure of Low Thermal Expansion Superalloy of Thermo-Span[J]. RARE METAL MATERIALS AND ENGINEERING,2008,37(9):1582-1586.
APA	Sun Yaru,Sun Wenru,Sun Xiaofeng,Guo Shouren,Liu Zheng,&Hu Zhuangqi.(2008).Distribution and Effect of P and B on As-Cast Microstructure of Low Thermal Expansion Superalloy of Thermo-Span.RARE METAL MATERIALS AND ENGINEERING,37(9),1582-1586.
MLA	Sun Yaru,et al."Distribution and Effect of P and B on As-Cast Microstructure of Low Thermal Expansion Superalloy of Thermo-Span".RARE METAL MATERIALS AND ENGINEERING 37.9(2008):1582-1586.