| Influence of Processing Parameters on Granularity Distribution of Superalloy Powders during PREP |
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| 引用本文： | HuanmingCHEN BenfuHU YiwenZHANG HuiyingLI QuanmaoYU. Influence of Processing Parameters on Granularity Distribution of Superalloy Powders during PREP[J]. 材料科学技术学报, 2003, 19(6): 587-590 |
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| 作者姓名： | HuanmingCHEN BenfuHU YiwenZHANG HuiyingLI QuanmaoYU |
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| 作者单位： | [1]UniversityofScience＆TechnologyBeijing,Beijing100083,China [2]CentralIronandSteelResearchInstitute,Beijing100081,China |
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| 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.
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| 关 键 词： | 粒度分布 超耐热合金 几何学 电极 |
Influence of Processing Parameters on Granularity Distribution of Superalloy Powders during PREP |
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| Huanming CHEN,Benfu HU,Yiwen ZHANG,Huiying LI,Quanmao YU. Influence of Processing Parameters on Granularity Distribution of Superalloy Powders during PREP[J]. Journal of Materials Science & Technology, 2003, 19(6): 587-590 |
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| Authors: | Huanming CHEN Benfu HU Yiwen ZHANG Huiying LI Quanmao YU |
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| Affiliation: | University of Science & Technology Beijing, Beijing 100083, China;Ningxia University, Yinchuan 750021, China |
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| Abstract: | 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. |
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| Keywords: | FGH95 superalloy powders Granularity distribution Plasma rotating electrode processing (PREP) Fractal dimension |
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