| FGH95粉末枝晶间合金元素偏析的研究 |
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| 引用本文： | 陈焕铭,胡本芙,余泉茂,宋铎.FGH95粉末枝晶间合金元素偏析的研究[J].材料工程,2002(3):32-35. |
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| 作者姓名： | 陈焕铭 胡本芙 余泉茂 宋铎 |
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| 作者单位： | 北京科技大学材料学院,北京,100083 |
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| 摘 要： | 测定两种工艺方法生产的FGH95粉末颗粒截面的枝晶偏析和胸晶偏析，结果表明：粉末颗粒内部枝晶间（或胞晶间）富Mo,Nb,Ti元素而贫Ni,Co,W元素。随着粉末颗粒尺寸的减小，枝晶偏析（或胞晶偏析）明显减小。与相同粒度级别的氩气雾化（AA）粉末相比，等离子体旋转电极（PREP）粉末的枝晶偏析明显低于AA粉末的枝晶偏析。
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| 关 键 词： | FGH95粉末 显微组织 枝晶偏析 胞晶偏板 粉末冶金 |
| 文章编号： | 1001-4381(2002)03-0032-04 |
| 修稿时间： | 2001年10月15日 |
A Study of Dendrite Microsegregations on PREP FGH95 Powders |
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| CHEN Huan ming,HU Ben fu,YU Quan mao,SONG Duo.A Study of Dendrite Microsegregations on PREP FGH95 Powders[J].Journal of Materials Engineering,2002(3):32-35. |
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| Authors: | CHEN Huan ming HU Ben fu YU Quan mao SONG Duo |
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| Abstract: | The dendrite microsegregations in PREP FGH95 powders has been studied by using SEM The results show that there are riched with Mo,Ti,Ni elements,and poored with Ni, Co,W elements between the powders dendrite arm It also seems that the dendrite microsegregations decrease with decreasing particle size Compared with argon atomized powders, the dendrite microsegregations in PREP FGH95 powders is lower |
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| Keywords: | FGH95 powders microstructure dendrite microsegregations |
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