Microstructure and properties of nitrided layer of titanium plate, produced by simultaneous laser quenching and liquid-nitrogen cryogenics
查看参考文献21篇
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文摘
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In the present study, titanium plate was treated by a novel method of laser quenching, simultaneously combined with liquidnitrogen cryogenics (LQLNC). The microstructure and properties of the titanium plate after treatment were investigated by X-ray diffraction, scanning electron microscopy, energy dispersive spectrometry, Vickers hardness testing, and friction wear testing. The results show that the treated titanium plate is covered by a nitrided layer with a homogeneous thickness of about 60 μm, while the nitrided layer consists of TiN and α-Ti phases. Compared to general laser quenching, the LQLNC treatment increases the hardness and wear resistance of the surface-modified layer of the titanium plate. As a result of grain refinement in the nitrided layer, the cracking induced by the rapid solidification of the conventional laser-quenching process has also been effectively solved. |
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来源
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Science China. Technological Sciences
,2018,61(12):1901-1906 【核心库】
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DOI
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10.1007/s11431-018-9293-9
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关键词
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laser quenching
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liquid nitrogen
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titanium plate
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hardness
;
wear resistance
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地址
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1.
Northeastern University, Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Shenyang, 110004
2.
Department of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009
3.
School of Materials Science and Engineering, Northeastern University, Shenyang, 110004
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1674-7321 |
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学科
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金属学与金属工艺 |
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基金
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国家863计划
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国家自然科学基金
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文献收藏号
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CSCD:6408988
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