| 激光熔敷镍基碳化钨的腐蚀磨损行为 |
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| 引用本文： | 王顺兴 李春华. 激光熔敷镍基碳化钨的腐蚀磨损行为[J]. 金属热处理, 1995, 0(10): 10-13 |
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| 作者姓名： | 王顺兴 李春华 |
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| 作者单位： | 洛阳工学院!471039(王顺兴，张一民，郑世安)，机械部北京机电研究所(李春华) |
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| 摘 要： | 测定了Ｎｉ６０＋２０％ＷＣ合金激光熔敷层的腐蚀磨性能，用扫描电镜研究了冲击速度和介质浓度对腐蚀磨损表面形貌的影响。结果表明，激光熔敷合金层的腐蚀磨损速率随冲击速度Ｖ和硫酸浓度Ｃ的提高而增大，符合Ｗ＝０．０２８７Ｖ＾２．０８７＋３．９３２Ｖ＾０．４３６Ｃ０．３３１Ｖ＾０．３１６的定量关系。其磨损机制为犁削磨损，腐蚀机制为均匀腐蚀和坑穴腐蚀，磨损对腐蚀有明显的激化作用。
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| 关 键 词： | 镍基合金 激光熔敷 腐蚀 磨损 合金 碳化钨 |
Corrosive Wear Behaviors of Laser Cladding Layer of Ni-base WC Alloy |
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| Wang Shunxing, Zhang Yimin, Zheng Shian, Li Chunhua. Corrosive Wear Behaviors of Laser Cladding Layer of Ni-base WC Alloy[J]. Heat Treatment of Metals, 1995, 0(10): 10-13 |
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| Authors: | Wang Shunxing Zhang Yimin Zheng Shian Li Chunhua |
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| Affiliation: | Wang Shunxing; Zhang Yimin; Zheng Shian; Li Chunhua |
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| Abstract: | The Corrosive wear properties of Ni60 +20%WC alloy coatings by laser cladded process have been measured and wear-corrosion surface morphologies in diffirent impact velocities and sulphuric-acid concentrations have been studied by SEM. The results show that the wear-corrosion rates of the coatings are increased with the increase of impact velocity or media concentration and the quantitative relation among wear-corrosion rateW,impact velocity V and media concentration C is W = 0. 0287V2.087 + 3. 932V0.436C0.331V0. 316. The wear mechanism of the coatings is the microploughing wear and the corrosion mechanisms are well-distributed corrosion and pitting corrosion. |
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| Keywords: | Ni-base alloy laser cladding wear-corrosion |
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