| Fe-N粉末冶金材料的组织与性能 |
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| 引用本文： | 王庆相,杨川,崔国栋. Fe-N粉末冶金材料的组织与性能[J]. 金属热处理, 2006, 31(4): 18-21 |
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| 作者姓名： | 王庆相 杨川 崔国栋 |
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| 作者单位： | 西南交通大学,材料科学与工程学院,四川,成都,610031 |
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| 摘 要： | 对纯铁粉进行气体渗氮处理得到Fe-N粉，再利用冷等静压和真空烧结技术制备了Fe-N粉末冶金材料，利用XRD的方法分析了烧结前的Fe-N粉与烧结后Fe-N块体材料的成分与结构。结果表明，Fe-N粉的主要组成相为Fe4N，还存在少量的Fe3N和单质铁；而烧结后块体材料的主要组成相为单质铁，仅存在少量Fe-N相，表明烧结过程中产生脱氮，烧结后Fe-N块体材料比铁基粉末冶金材料的硬度高了0．4倍，耐磨性能高了1．8倍，其耐蚀性提高了1倍。
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| 关 键 词： | Fe-N粉末冶金材料 硬度 耐磨性能 耐蚀性 |
| 文章编号： | 0254-6051（2006）04-0018-04 |
| 收稿时间： | 2005-12-20 |
| 修稿时间： | 2005-12-20 |
Microstructure and Properties of Powder Metallurgy Materials of Fe-N |
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| WANG Qing-xiang,YANG Chuan,CUI Guo-dong. Microstructure and Properties of Powder Metallurgy Materials of Fe-N[J]. Heat Treatment of Metals, 2006, 31(4): 18-21 |
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| Authors: | WANG Qing-xiang YANG Chuan CUI Guo-dong |
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| Affiliation: | College of Materials Science and Engineering,Southwest Jiaotong University, Chengdu Sichuan 610031, China |
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| Abstract: | The powder of Fe-N was prepared by pure iron power through gas nitriding, then powder of Fe-N was made cold isostatic pressing and vacuum sintering. The composition and structure of the Fe-N power before sintering and the block Fe-N after sintering were analyzed by XRD. The results show that the main component of the Fe-N power before sintering is Fe4N with a little Fe3N and single iron ; while the main component of the sintered materials is single Fe with a very little Fe-N phase, which shows that the nitrogen has been lost in the process of sintering. The hardness of block Fe- N after sintering is 0.4 times higher than that of Iron-base powder metallurgy material,the wear-resistant performance is 1.8 times higher, and 1 time for the corrosion resistance. |
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| Keywords: | powder metallurgy material of Fe-N hardness wear-resisting performance corrosion resistance |
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