| WC颗粒在喷射成形高速钢复合材料中溶解—析出机理 |
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| 引用本文： | 张丽英,黄倬.WC颗粒在喷射成形高速钢复合材料中溶解—析出机理[J].北京科技大学学报,1997,19(6):599-604. |
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| 作者姓名： | 张丽英 黄倬 |
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| 作者单位： | 北京科技大学材料科学与工程学院!北京，100083，北京有色金属研究总院粉末冶金研究所!北京，100088，北京科技大学材料科学与工程学院!北京，100083，北京科技大学材料科学与工程学院!北京，100083 |
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| 摘 要： | 用ＳＥＭ／ＥＤＸ研究了ＷＣ颗粒在用喷射成形工艺制备了ＷＣ颗粒增强高速钢复合材料中的成分变化，重点分析了ＷＣ颗粒与高温液态高速钢接触时发生的溶解－析出现象，并针对ＷＣ颗粒的成分变化，对比研究了传统硬质合金和钢结硬质合金中ＷＣ晶粒的成分变化，提出了ＷＣ颗粒在喷射成形高速钢复合中的溶解－－析出机理，结果表明，ＷＣ颗粒增强高速钢复合材料中ＷＣ颗粒含有较多的合金元素，特别是Ｆｅ，这是由复式碳化物的析出特性所
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| 关 键 词： | 喷射成形 高速钢 溶解 析出 碳化钨 复合材料 |
Dissolving-precipitating Mechanism of WC Particle-reinforced High Speed Steel Composites Fabricated by Spray Forming |
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| Zhang Liying.Dissolving-precipitating Mechanism of WC Particle-reinforced High Speed Steel Composites Fabricated by Spray Forming[J].Journal of University of Science and Technology Beijing,1997,19(6):599-604. |
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| Authors: | Zhang Liying |
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| Abstract: | The behavior of WC particles of WC particle-reinforced M2 high speed steel composites(MMCs) made by spray formming with emphasis on the change of prtculate composition during the course of deposition was investigated. The dissolving-precipitating phenomenon of WC particles contacted with high-temperature liquid high speed steel was studied.The results showed that particulate composition of WC particles changed fundamentally during preparationof MMCs. In comparison with compositon of WC grain of traditional hard alloys and steel bending hard alloys, a dissolving-precipitationg mechanism interpreting the particulate changing characteristicewas proposed. |
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| Keywords: | WC spray forming high speed steel dissolving-precipitating |
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