| FASHS技术制备TiB2+Ni/Ni3Al/405不锈钢梯度材料 |
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| 引用本文： | 申艳丽,孟庆森,MunirZA,辛立军,胡利方.FASHS技术制备TiB2+Ni/Ni3Al/405不锈钢梯度材料[J].焊接学报,2007,28(8):25-28,32. |
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| 作者姓名： | 申艳丽 孟庆森 MunirZA 辛立军 胡利方 |
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| 作者单位： | 1. 太原理工大学,材料科学与工程学院,太原,030024
2. Department of Chemical Engineering and Materials Science,University of California,Davis,USA |
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| 摘 要： | 采用电场激活自蔓延高温合成(FASHS)技术制备了TiB2 Ni/Ni3Al/405不锈钢梯度材料.试验中首先将镍粉和铝粉球磨处理以促进燃烧反应发生,然后采用FASHS技术利用自蔓延燃烧反应热连接制备了TiB2 Ni/Ni3Al/405不锈钢梯度材料.用SEM和XRD分析了梯度材料各层的界面微观组织及相组成,用洛氏硬度计、显微硬度计及磨料磨损试验机分析了材料的力学性能、硬度及表面抗磨性.结果表明,金属陶瓷复合层、Ni3Al层和405不锈钢金属片间形成了可靠的冶金结合,金属陶瓷复合材料表面硬度为90HRA,材料的化学成分和显微硬度呈梯度分布,耐磨性优于20Cr渗碳钢.
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| 关 键 词： | 自蔓延 梯度材料 金属陶瓷 连接 FASHS 不锈钢 梯度材料 Preparation gradient material 渗碳钢 耐磨性 梯度分布 显微硬度计 化学成分 表面硬度 陶瓷复合材料 冶金结合 金属片 陶瓷复合层 结果 抗磨性 力学性能 磨损试验机 磨料 |
| 文章编号： | 0253-360X（2007）08-025-05 |
| 收稿时间： | 2006/10/12 0:00:00 |
| 修稿时间： | 2006-10-12 |
Preparation of TiB2+Ni/Ni3Al/stainless steel gradient material via FASHS |
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| SHEN Yanli,MENG Qingsen,Z. A. Munir,XIN Lijun and HU Lifang.Preparation of TiB2+Ni/Ni3Al/stainless steel gradient material via FASHS[J].Transactions of The China Welding Institution,2007,28(8):25-28,32. |
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| Authors: | SHEN Yanli MENG Qingsen Z A Munir XIN Lijun and HU Lifang |
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| Affiliation: | School of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China,School of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China,School of Chemical Engineering and Materials Science, University of California, Davis, USA,School of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China and School of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China |
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| Abstract: | TiB2+Ni/Ni3Al/stainless steel gradient material was prepared by mechanical alloying and field-activated self-propagating high-temperature synthesis(FASHS).At first, in order to stimulate the combustion reaction, Ni powder and Al powder were mechanical alloying, then TiB2+Ni/Ni3Al/405 stainless steel gradient material was prepared by the reaction thermal of self-propagating combustion reaction.The interface, the microstructure and the phase composition of the gradient material were observed by scanning electron microscope and X-ray diffraction, and metallurgical bonding layer was formed in the interfaces of cermet, Ni3Al, 405 stainless steel. The mechanical properties, the hardness and the resistance to wear of gradient material were studied by Rockwell hardometer, microhardness tester and grinding abrasion tester, and the results show that cermet surface Rockwell hardness is 90 HRA, and the chemical constitution and the microhardness of material were gradient and the resistance to wear exceed 20Cr case-hardened stell. |
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| Keywords: | self-propagating high-temperature synthesis gradient material cermet joining |
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