Thermodynamic simulation calculation of Co-8.8Al-9.8W alloy with different B contents based on JMatPro software

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	Thermodynamic simulation calculation of Co-8.8Al-9.8W alloy with different B contents based on JMatPro software
	Xu, Yangtao; Sha, Qizhen
刊名	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
	2016-09-01
卷号	45 期号:9 页码:2332-2336
关键词	Aluminum alloys Borides Computer software Precipitation (chemical) Temperature Ternary alloys Tungsten alloys Al content Co-base superalloys Effect of boron addition Gamma phase Precipitation behavior Precipitation temperature Solid liquid equilibrium Thermodynamic simulations
ISSN号	1002185X
英文摘要	The precipitation behavior of Co-8.8Al-9.8W alloy with different B contents has been studied by thermodynamic simulation calculation of JMatPro software in order to research the effect of boron additions on precipitation phases of new Co base superalloy. The result shows that the precipitation temperature and precipitation quantity of γ phase and μ-Co7W6 phase decrease with the increases of B content, whereas the precipitation temperature and precipitation quantity of η-Co3Al phase increase. Finally, the result was explained from the aspect of boride phases and the effect of B on composition of precipitation. It suggests that with the increase of B content, the content of each element of solid-liquid equilibrium phase has a growing difference when γ phase precipitates, and thus it is only decreasing the temperature and increasing the degree of super cooling that can satisfy γ phase nucleation and growth. Therefore, with the increase of B content, the content of γ phase gets less and the precipitation temperature becomes lower. The precipitation of borides leads to solid solution of much Co and W, which increases the Al content in the solid-liquid equilibrium phase and promotes the precipitation of Co3Al. © 2016, Science Press. All right reserved.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	中文
出版者	Rare Metals Materials and Engineering Press
WOS记录号	WOS:000384960100025
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112510]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Xu, Yangtao,Sha, Qizhen. Thermodynamic simulation calculation of Co-8.8Al-9.8W alloy with different B contents based on JMatPro software[J]. Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,2016,45(9):2332-2336.
APA	Xu, Yangtao,&Sha, Qizhen.(2016).Thermodynamic simulation calculation of Co-8.8Al-9.8W alloy with different B contents based on JMatPro software.Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,45(9),2332-2336.
MLA	Xu, Yangtao,et al."Thermodynamic simulation calculation of Co-8.8Al-9.8W alloy with different B contents based on JMatPro software".Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering 45.9(2016):2332-2336.