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	RARE METAL MATERIALS AND ENGINEERING
	2016-09
卷号	45 期号:9 页码:2332-2336
关键词	JMatPro software gamma phase mu-Co7W6 phase eta-Co3Al phase boride phases
ISSN号	1002-185X
英文摘要	The precipitation behavior of Co-8.8A1-9.8W 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 gamma phase and mu-Co7W6 phase decrease with the increases of B content, whereas the precipitation temperature and precipitation quantity of eta-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 gamma phase precipitates, and thus it is only decreasing the temperature and increasing the degree of super cooling that can satisfy gamma phase nucleation and growth. Therefore, with the increase of B content, the content of gamma 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.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	中文
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000384960100025
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33607]
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
通讯作者	Xu Yangtao
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R 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]. 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.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".RARE METAL MATERIALS AND ENGINEERING 45.9(2016):2332-2336.