Influence of Processing Parameters on Granularity Distribution of Superalloy Powders during PREP

作     者：HuanmingCHEN BenfuHU YiwenZHANG HuiyingLI QuanmaoYU 

作者机构：UniversityofScience&TechnologyBeijingBeijing100083China CentralIronandSteelResearchInstituteBeijing100081China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2003年第19卷第6期

页      面：587-590页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：The National Defence Committee of Science and Technology China is acknowledged for financial support(95-YJ-20) 

主　　题：FGH95 superalloy powders Granularity distribution Plasma rotating electrode processing (PREP),Fractal dimension 

摘      要：In order to investigate the influence of processing parameters on the granularity distribution of superalloy powders during the atomization of plasma rotating electrode processing (PREP), in this paper FGH95 superalloy powders is prepared under different processing conditions by PREP and the influence of PREP processing parameters on the granularity distribution of FGH95 superalloy powders is discussed based on fractal geometry theory. The results show that with the increase of rotating velocity of the self-consuming electrode, the fractal dimension of the granularity distribution increases linearly, which results in the increase of the proportion of smaller powders. The change of interval between plasma gun and the self-consuming electrode has a little effect on the granularity distribution, also the fractal dimension of the granularity distribution changed a little correspondingly.