王敏,刘锦云,李文鹏,陈立甲.锡青铜化学镀 Ni-P 合金工艺及镀层性能[J].表面技术,2015,44(6):17-21.
WANG Min,LIU Jin-yun,LI Wen-peng,CHEN Li-jia.Process and Performances of Electroless Ni-P Alloy Coating on Tin Bronze[J].Surface Technology,2015,44(6):17-21
锡青铜化学镀 Ni-P 合金工艺及镀层性能
Process and Performances of Electroless Ni-P Alloy Coating on Tin Bronze
投稿时间:2015-01-08  修订日期:2015-06-20
DOI:10.16490/j.cnki.issn.1001-3660.2015.06.004
中文关键词:  锡青铜  酸性含锌活化液  化学镀 Ni-P 合金  耐磨性  耐腐蚀性
英文关键词:tin bronze  acid activation solution with zinc  electroless Ni-P alloy  wear resistance  corrosion resistance
基金项目:四川省教育厅自然科学重点项目(102A097)
作者单位
王敏 西南科技大学 工程技术中心, 四川 绵阳 621010 
刘锦云 西华大学 材料科学与工程学院, 成都 610039 
李文鹏 西华大学 材料科学与工程学院, 成都 610039 
陈立甲 西华大学 材料科学与工程学院, 成都 610039 
AuthorInstitution
WANG Min Engineering Technology Center, Southwest University of Science and Engineering, Mianyang 621010, China 
LIU Jin-yun School of Materials Science and Engineering, Xihua University, Chengdu 610039, China 
LI Wen-peng School of Materials Science and Engineering, Xihua University, Chengdu 610039, China 
CHEN Li-jia School of Materials Science and Engineering, Xihua University, Chengdu 610039, China 
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中文摘要:
      目的 在锡青铜基体上化学镀 Ni-P 合金镀层,提高锡青铜的耐磨性和耐腐蚀性。 方法 以酸性含锌活化液活化锡青铜试样,在相同的条件下实施化学镀,并对镀态试样进行不同温度(250,400,500℃ )下的热处理。 对比基体、镀态试样和热处理试样的性能,研究热处理温度对锡青铜化学镀 Ni-P 合金层微观结构、显微硬度、耐磨性和耐腐蚀性的影响。 结果 锡青铜表面形成了 Ni-P 合金镀层,并且镀层无孔隙缺陷,与基体结合良好,沉积速率较快,为 10. 00 μm/ h。 经热处理后,镀层的微观结构由非晶态向晶态转变,在 500 ℃热处理的镀层显微硬度最大,耐磨性最好。 镀态镀层和经 250 ℃ 热处理的镀层在10% HNO3 溶液和 10% H2SO4 溶液(10% 均为体积分数)中的耐腐蚀性明显好于锡青铜基体,镀态镀层在两种介质溶液中的腐蚀速率分别为 0. 225,0. 146 mg/ (cm2 ·d)。 结论 采用酸性含锌活化液活化锡青铜基体,可以在锡青铜表面制备出化学镀 Ni-P 合金镀层,且镀覆效果较好。 这表明紫铜化学镀 Ni-P 合金工艺同样适用于锡青铜。
英文摘要:
      Objective To improve the wear resistance and corrosion resistance of the tin bronze by Ni-P alloy coating. Methods The tin bronze samples were activated by the acid activation solution with zinc and the plating was performed under the same condition. The properties of these state plated samples underwent heat treatment in the different temperatures (250, 400, 500 ℃) were compared, including the matrix, the plating coating and the coating after heat treatment. The impact was investigated of the different heat treatment temperatures on microstructure, microhardness, wear resistance and corrosion resistance of electroless Ni-P alloy coating on the tin bronze. Results The Ni-P alloy coating was formed on the surface of the tin bronze surface, the state plating coa-ting has no void defect with the base; instead, a good combination was observed; moreover, the deposition is faster, namely, 10. 00 μm / h. The microstructure of the coating transforms from amorphous to crystalline after heat treatment was studied, and the microhardness and wearability of the coating was best after 500 ℃ heat treatment, the corrosion resistance of the state plating coating and the coating after 250 ℃ heat treatment was obviously better than the tin bronze substrate in 10% HNO3 solution and 10% H2 SO4 solution, and the corrosion rate of the state plating coating was respectively 0. 225 mg / (cm2 ·d) and 0. 146 mg / (cm2 ·d) in the two kinds of medium solutions. Conclusion By the acid activation solution with zinc, electroless Ni-P alloy coating can be successfully prepared on the tin bronze surface with a nice plating effect. Our results show that the technology of electroless Ni-P alloy on copper can be also applied to the tin bronze.
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