The effect of Al, Cr on properties of thermo-span superalloy

IMR OpenIR

	The effect of Al, Cr on properties of thermo-span superalloy
	Sun Yaru ; Sun Wenru ; Sun Xiaofeng ; Guo Shouren ; Liu Zheng ; Hu Zhuangqi
通讯作者	Sun Yaru(Yarusun@Yahoo.com.cn)
	2007-10-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	36 期号:10 页码:1788-1792
摘要	The influences of Al, Cr contents on the thermal expansion coefficient, mechanical properties and oxidation resistances at 650 degrees C for Thermo-Span alloy were studied. When Al content was increased from 0.45% to 1.5%, and Cr content decreased from 5.5% down to 3.0%, the thermal expansion coefficient in the range of 20 similar to 800 degrees C for the alloy decreased obviously, the rupture life at 650 degrees C and 600 MPa increased from 354 h to 597 h, the tensile strength at R.T increased greatly, the oxidation rate at 650 degrees C, 100 h increased slightly. The increased of Al addition promoted the gamma' precipitation. The higher content of Cr improved oxidation resistance due to higher concentration of Cr at the interface of oxidation layer and matrix. The decrease of Cr content and the increase of Al content lowered the oxidation resistance slightly owing to lower Cr enriching and higher Al enriching at the interface of oxidation layer and matrix, but the decrease magnitude was not too big, the alloy kept a satisfactory oxidation resistance still.
关键词	thermo-span alloy mechanical properties oxidation resistance low thermal expansion superalloy
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:000250961500021
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：2[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/321006/91523
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, Sch Mat Sci & Engn, Shenyang 110023, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Shengyang Univ Technol, Shenyang 110023, Peoples R China
推荐引用方式 GB/T 7714	Sun Yaru,Sun Wenru,Sun Xiaofeng,et al. The effect of Al, Cr on properties of thermo-span superalloy[J]. RARE METAL MATERIALS AND ENGINEERING,2007,36(10):1788-1792.
APA	Sun Yaru,Sun Wenru,Sun Xiaofeng,Guo Shouren,Liu Zheng,&Hu Zhuangqi.(2007).The effect of Al, Cr on properties of thermo-span superalloy.RARE METAL MATERIALS AND ENGINEERING,36(10),1788-1792.
MLA	Sun Yaru,et al."The effect of Al, Cr on properties of thermo-span superalloy".RARE METAL MATERIALS AND ENGINEERING 36.10(2007):1788-1792.