摘要
为了提高连铸结晶器铜板的耐磨性能和铸坯质量,自制了3种不同铝硅聚苯酯含量的镍铬硼硅粉末,采用等离子喷涂技术在Cr-Zr-Cu系铜合金表面制备涂层。采用扫描电镜(SEM)和拉伸试验机等设备对涂层进行表征与分析,采用Image J图形软件计算涂层的孔隙率,选用球-盘式摩擦磨损试验机研究常温下复合涂层的摩擦磨损性能。结果表明:制备的复合涂层与Cr-Zr-Cu系铜合金基体结合性能良好;随着聚苯酯相增多,涂层孔隙率相应增大,导热系数减小,摩擦系数降低。
In order to improve the wear resistance of the continuous casting mold and improve the quality of the casting billet,three kinds of nickel-chromium-borosilicate-silica powders added by different contents of polyphenyl ester Al-Si were fabricated,and the plasma spraying technology was used to prepare coating on copper plates( Cr-Zr-Cu). The as-prepared coating was characterized and analyzed by scanning electron microscope( SEM) and tensile tester. The porosity of the coating was calculated by Image J software,and the friction of the composite coating at room temperature was evaluated by ball-disk friction wear tester. Results showed that the as-prepared composite coating had a good combination with the Cr-Zr-Cu substrate. With the increase of polyphenyl ester Al-Si phase,the porosity of the coating increased accordingly,and the thermal conductivity of the composite coating decreased,as well as the friction coefficient of the coating reduced.
作者
王帅
杨军
常卓
张亚楠
白宇
邹德宁
WANG Shuai;YANG Jun;CHANG Zhuo;ZHANG Ya-nan;BAI Yu;ZOU De-ning(School of Metallurgical Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China;Xi’an Jiaotong University -State Key Laboratory for Mechanical Behavior of Materials,Xi’an 710049,China;Shaanxi Technological Institute of Metallurgical Engineering,Xi’an 710055,China)
出处
《材料保护》
CAS
CSCD
北大核心
2018年第11期57-60,65,共5页
Materials Protection
基金
国家自然科学基金面上项目(51774226)
国家自然科学基金联合基金(U1460104)资助.
关键词
等离子喷涂
铝硅聚苯酯
镍铬硼硅粉末
结晶器
导热系数
耐磨性能
plasma spraying
polyphenyl ester Al-Si
nickel-chromium-borosilicate-silica powders
mold
thermal conductivity
wear resistance
