| 等离子旋转电极雾化工艺制备FGH96合金粉末颗粒的组织 |
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| 引用本文： | 刘建涛,张义文. 等离子旋转电极雾化工艺制备FGH96合金粉末颗粒的组织[J]. 材料热处理学报, 2012, 33(1): 31-36 |
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| 作者姓名： | 刘建涛 张义文 |
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| 作者单位： | 钢铁研究总院高温材料研究所,北京,100081 |
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| 基金项目： | 国家重点基础研究发展(973)计划资助(2010CB631204) |
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| 摘 要： | 采用扫描电镜(SEM)、透射电镜(TEM)等多种手段对等离子旋转电极雾化工艺(PREP)制备的不同粒度FGH96合金粉末显微组织进行研究,结果表明:200～300μm的粉末颗粒凝固组织呈现典型的树枝晶特征,-50μm的粉末颗粒凝固组织呈现典型的胞状晶特征;粉末在快速凝固过程中会析出不同形貌的亚稳碳化物MC’,不同形貌的MC’碳化物化学组成和点阵常数具有一定的差异。
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| 关 键 词： | FGH96合金 等离子旋转电极工艺 粉末颗粒 显微组织 碳化物 |
Microstructure of FGH96 super alloy powders atomized by plasma rotating electrode process |
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| LIU Jian-tao,ZHANG Yi-wen. Microstructure of FGH96 super alloy powders atomized by plasma rotating electrode process[J]. Transactions of Materials and Heat Treatment, 2012, 33(1): 31-36 |
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| Authors: | LIU Jian-tao ZHANG Yi-wen |
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| Affiliation: | (High Temperature Material Research Institute,Central Iron and Steel Research Institute,Beijing 100081,China) |
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| Abstract: | Microstructure of FGH96 super alloy powders atomized by plasma rotating electrode process(PREP) were studied by means of SEM and TEM.The results show that solidification microstructure of the powders ranged from 200 μm to 300 μm in size is characterized by dendrite structure and cellular structure is observed for the powders with size of about 50 μm.MC′ metastable carbides are precipitated during quick solidification,and the MC′ carbides show different morphology and are characterized by different composition and lattice parameters. |
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| Keywords: | FGH96 superalloy PREP powder particle microstructure carbide |
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