朱丽霞,罗金恒,武刚,李丽锋,张庶鑫,刘双双,陈永楠.扩散温度对TC4合金表面Cu/Ni复合镀层结构及腐蚀性能的影响[J].稀有金属材料与工程,2019,48(6):1897~1903.[Zhu Lixia,Luo Jinheng,Wu Gang,Li Lifeng,Zhang Shuxin,Liu Shuangshuang,Chen Yongnan.Effect of temperature on the interface structure and corrosion ofCu/Ni coating on TC4 alloy[J].Rare Metal Materials and Engineering,2019,48(6):1897~1903.]
扩散温度对TC4合金表面Cu/Ni复合镀层结构及腐蚀性能的影响
投稿时间:2018-12-03  修订日期:2019-02-01
中文关键词:  钛合金  扩散行为  Kirkendall效应  耐蚀性
基金项目:国家重点研发计划(2017YFC0805804),国家自然科学基金资助(51471136)
中文摘要:
      论文采用扩散热处理研究了Cu/Ni/Ti复合镀层不同温度下的扩散行为,分析了扩散层结构,并讨论了扩散过程对镀层结构及腐蚀性能的影响。结果表明:由于Cu/Ni/Ti原子之间的互扩散,形成稳定的扩散层,可以有效提高镀层表面耐蚀性能;随着热扩散温度上升到700℃,膜层结构致密,在扩散层中形成了NixTiy金属间化合物及少量的CuxTiy金属间化合物,镀层表面的耐蚀性最好;温度升高到800℃时,在膜层界面处引发了Kirkendall效应,所形成的Kirkendall空位相互聚集长大,形成裂纹或孔洞,使得镀层疏松多孔,从而低了耐蚀性。
Effect of temperature on the interface structure and corrosion ofCu/Ni coating on TC4 alloy
英文关键词:Titaium alloy  Kirkendalleffect  Intermetallic compounds (IMCs)  Corrosion resistance
英文摘要:
      In this paper, the diffusion behavior of Cu/Ni/Ti atoms at different temperatures was studied by means of diffusion heat treatment. The influence of diffusion process on the structure and corrosion of the coating was also discussed. The results show that the corrosion resistance of the coating surface can be effectively improved with the stable diffusion layer formed by the mutual diffusion of Cu/Ni/Ti atoms. As the thermal diffusion temperature up to 700 ℃, the compact structure of membrane layer, the NixTiy intermetallic compounds and a small amount of CuxTiy intermetallic compounds formed in the diffusion layer, the corrosion resistance of coating on the surface of the best. Temperature to 800 ℃, Kirkendall space grew up together each other, which is formed by the formation of cracks or holes and make coating porous, so as to lower the corrosion resistance, due to Kirkendall effect is triggered by atoms at the interface between Cu/Ni/Ti structure.
作者单位E-mail
朱丽霞 中国石油集团石油管工程技术研究院 zhulx@cnpc.com.cn 
罗金恒 中国石油集团石油管工程技术研究院 luojh@cnpc.com.cn 
武刚 中国石油集团石油管工程技术研究院 wugang010@cnpc.com.cn 
李丽锋 中国石油集团石油管工程技术研究院 lilifeng004@cnpc.com.cn 
张庶鑫 中国石油集团石油管工程技术研究院 zhangshuxin003@cnpc.com.cn 
刘双双 长安大学材料科学与工程学院  
陈永楠 长安大学材料科学与工程学院 frank_cyn@163.com 
摘要点击次数: 55
全文下载次数: 35
查看全文  查看/发表评论  
关闭