段忠清,张宝霞,王泽华.等离子喷涂Cr2 03 -8% Ti02涂层参数优化研究[J].表面技术,2008,37(4):39-41,53.
DUAN Zhong-qing,ZHANG Bao_xia,WANG Ze_hua.Process Optimization of Plasma Sprayed Cr203-8 %Ti02 Coating[J].Surface Technology,2008,37(4):39-41,53 |
| 等离子喷涂Cr2 03 -8% Ti02涂层参数优化研究 |
| Process Optimization of Plasma Sprayed Cr203-8 %Ti02 Coating |
| 投稿时间：2008-03-26 修订日期：2008-08-10 |
| DOI： |
| 中文关键词: 等离子喷涂 Cr2 03 -8% Ti02涂层 结合强度 正交试验 |
| 英文关键词:Plasma spray Cr203-8%Ti02 coating Bonding strength Orthogonal experiment |
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| 中文摘要: |
| 等离子喷涂陶瓷涂层与基体的结合强度往往较小，限制了其实际应用，为了提高结合强度，用正交试验方法研究了等离子喷涂工艺的4个主要参数（喷涂距离、电流、主气流量和辅气流量）对Cr2 03 -8% TiO2涂层结合强度的影响，确定了优化工艺并进行了验证试验，比较了工艺优化前后涂层的结合强度、孔隙率和显微硬度。结果表明：影响涂层结合强度的因素主次顺序是喷涂距离、电流、辅气流量、主气流量，工艺优化后能显著提高Cr2 03一8 % TiO2涂层的性能，优化工艺喷涂的Cr2 03 -8% Ti02涂层结合强度达到29. 2MPa，孔隙率为3.80%，显微硬度为2 528HV。 |
| 英文摘要: |
| The bonding strength of ceramic coating sprayed by plasma between coating and substrate is small sometimes, this confines its application. An orthogonal test was used to investigate the influence of four main factors of spraying distance, electrical current, primary gas flow rate and secondary gas flow rate on the plasma spraying Cr203-8% Ti02 coating. An optimized plasma spraying parameters of Cr203-8% Ti02 coating was obtained. The bonding strength, hardness and porosity were measured. The result shows that the factors effective sequence on the bonding strength first is spraying distance, then electrical current and secondary gas flow rate, primary gas flow rate at last. The optimized process improves the quality of coating remarkably, and the optimized coating has a bonding strength of 29. 2MPa, porosity of 3. 80% and micro-hardness of 2 528HV. |
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