| 中温回火对钛基体上镍基喷焊涂层组织和性能的影响 |
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| 引用本文： | 王宏宇,许晓静,陈康敏,王兰,张雪锋. 中温回火对钛基体上镍基喷焊涂层组织和性能的影响[J]. 焊接学报, 2006, 27(2): 51-54,58 |
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| 作者姓名： | 王宏宇 许晓静 陈康敏 王兰 张雪锋 |
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| 作者单位： | 江苏大学,机械工程学院,,江苏,镇江,212013 |
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| 基金项目： | 江苏大学校科研和教改项目 |
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| 摘 要： | 对Ti-6Al-4V基体上火焰喷焊镍基涂层进行了中温回火处理,研究了涂层回火前后的显微组织和耐磨性能.结果表明,经中温回火处理后,喷焊层中析出了大量的硬质相,对喷焊层起到了弥散强化的作用,涂层组织的均匀性有较大提高,过渡层明显变厚,在整个横切面上的显微硬度变化更加平缓,软基体向硬涂层的性能变化梯度明显下降,喷焊表层的硬度比回火前略有提高,但其磨损失重仅为回火前的1/2.33.
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| 关 键 词： | 中温回火 喷焊涂层 钛基体 组织 性能 |
| 文章编号： | 0253-360X（2006）02-51-05 |
| 收稿时间： | 2004-11-25 |
| 修稿时间： | 2004-11-25 |
Influence of medium-tempering treatment on microstructure and properties of Ni based spray-welded coating on titanium substrate |
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| WANG Hong-yu,XU Xiao-jing,CHEN Kang-min,WANG Lan and ZHANG Xue-feng. Influence of medium-tempering treatment on microstructure and properties of Ni based spray-welded coating on titanium substrate[J]. Transactions of The China Welding Institution, 2006, 27(2): 51-54,58 |
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| Authors: | WANG Hong-yu XU Xiao-jing CHEN Kang-min WANG Lan ZHANG Xue-feng |
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| Affiliation: | School of Mechanical Engineering, Jiangsu University, Jiangsu Zhenjiang 212013, China,School of Mechanical Engineering, Jiangsu University, Jiangsu Zhenjiang 212013, China,School of Mechanical Engineering, Jiangsu University, Jiangsu Zhenjiang 212013, China,School of Mechanical Engineering, Jiangsu University, Jiangsu Zhenjiang 212013, China and School of Mechanical Engineering, Jiangsu University, Jiangsu Zhenjiang 212013, China |
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| Abstract: | The microstructure and properties of Ni based coating on Ti-6Al-4V alloys substrate fabricated by flames spray-welding and subsequently treated by medium-tempering were studied.The results show that a lot of hard particles are separated out after the medium-tempering treatment,which has the dispersion strengthen effect on spray-welded coating.After the medium-tempering treatment,the uniformity of coating's microstructure is improved,and the transition layer widens obviously;and the micro-hardness of coating changes more smoothly along depth direction,and the grads gradient of properties from soft substrate to hard coating decreases obvisously;and the micro-hardness of the spray-welded surface increases a little,but the wear loss of sample after tempering treatment is only equal to that of 1/2.33 of the before. |
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| Keywords: | medium-tempering spray welded coating titanium substrate microstructure properties |
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