PREP工艺参数对FGH95高温合金粉末特性的影响  

Effect of PREP Process Parameters on Powder Properties for FGH95 Superalloy

作　　者：陶宇[1] 冯涤[1] 张义文[1] 国为民[1] 张莹[1] 张凤戈[1] 陈生大[1] 

机构地区：[1]钢铁研究总院高温材料研究所,北京100081

出　　处：《钢铁研究学报》2003年第5期46-50,共5页Journal of Iron and Steel Research

摘　　要：研究了采用等离子旋转电极工艺制取FGH95高温合金粉末时各主要工艺参数对粉末平均粒度及其分布的影响。粉末的平均粒度主要取决于棒料的转速,且随棒料转速的增加而减小。粉末粒度的分布则与棒料转速、等离子弧电流强度以及等离子枪与棒料端部的距离等工艺参数有关。提高棒料转速、减小等离子弧电流强度或等离子枪与棒料端部的距离,均可使粉末粒度的分布范围变窄。The effect of process parameters for plasma rotating electrode process on FGH95 superalloy powder properties was studied. The results show that the average particle size of FGH95 superalloy powder is inversely proportional to the rotating rate of electrode. The particle size distribution band widens as the plasma current increases. With increasing the distance between torch and electrode, the width of the particle size distribution band increases.

关 键 词：等离子旋转电极工艺 FGH95 高温合金 粉末特性 

分 类 号：TF125[冶金工程—粉末冶金]