钛合金表面Ni-TiB_2复合镀层的结构与性能
|
摘要
在Ti-6Al-4V钛合金表面制备了Ni-TiB_2复合镀层。通过单因素试验,研究了镀液中TiB_2的质量浓度、搅拌速率和电流密度对复合镀层中TiB_2的质量分数的影响。优选出的最佳工艺参数为:镀液中TiB_2的质量浓度12g/L,搅拌速率500r/min,电流密度3A/dm~2。同时,获得了TiB_2的质量分数较高(约为9%)的复合镀层。Ni-9%TiB_2复合镀层表面较致密,其硬度约为钛合金基体的2倍。
Ni-TiB_2 composite coatings were prepared on Ti-6Al-4V titanium alloy,and the influences of mass concentration of TiB_2 in plating bath,stirring rate and current density on the mass fraction of TiB_2 in composite coatings were investigated by single factor experiment.The optimal process parameters determined were as follows:mass concentration of TiB_2 in plating bath 12 g/L,stirring rate 500r/min,current density 3 A/dm~2,and a composite coating containing about 9% of TiB_2 was obtained.The results showed that the Ni-9%TiB_2 composite coating has compace surface,and its hardness was approximately two times that of titanium alloy substrate.
Ni-TiB_2 composite coatings were prepared on Ti-6Al-4V titanium alloy,and the influences of mass concentration of TiB_2 in plating bath,stirring rate and current density on the mass fraction of TiB_2 in composite coatings were investigated by single factor experiment.The optimal process parameters determined were as follows:mass concentration of TiB_2 in plating bath 12 g/L,stirring rate 500r/min,current density 3 A/dm~2,and a composite coating containing about 9% of TiB_2 was obtained.The results showed that the Ni-9%TiB_2 composite coating has compace surface,and its hardness was approximately two times that of titanium alloy substrate.
引文
[1]李朝志,付彬国,刘金海,等.钛合金干滑动摩擦行为与磨损机理研究进展[J].材料导报,2018,32(z1):410-414.
[2]HUSSAIN M S.Direct Ni-Co alloy plating of titanium alloy surfaces by high speed electrodeposition[J].Transactions of the institute of metal finishing,2012,90(1):15-19.
[3]李轩,李辉,王凯强,等.TC4合金表面Ni-SiC-Y2O3复合镀层的摩擦磨损性能[J].中国表面工程,2018,31(2):94-102.
[4]杨玲玲,宋丹路,师晓.钛合金表面Ni-B镀层的制备工艺及微动磨损性能[J].材料热处理学报,2010,31(8):132-135.
[5]孙杰,张兴伟,明庭云,等.钛合金表面稀土改性化学镀厚镀层及其性能[J].表面技术,2018,47(4):196-200.
[6]周海飞,钱洲亥,祝郦伟,等.搅拌在Ni-diamond复合电沉积中的电化学行为[J].稀有金属材料与工程,2014,43(2):470-474.
[7]ANNA G,MAREK N,KATARZYNA B,et al.Influence of current density on microstructure and properties of electrodeposited nickel-alumina composite coatings[J].Journal of alloys and compounds,2014,615(s1):406-410.
[2]HUSSAIN M S.Direct Ni-Co alloy plating of titanium alloy surfaces by high speed electrodeposition[J].Transactions of the institute of metal finishing,2012,90(1):15-19.
[3]李轩,李辉,王凯强,等.TC4合金表面Ni-SiC-Y2O3复合镀层的摩擦磨损性能[J].中国表面工程,2018,31(2):94-102.
[4]杨玲玲,宋丹路,师晓.钛合金表面Ni-B镀层的制备工艺及微动磨损性能[J].材料热处理学报,2010,31(8):132-135.
[5]孙杰,张兴伟,明庭云,等.钛合金表面稀土改性化学镀厚镀层及其性能[J].表面技术,2018,47(4):196-200.
[6]周海飞,钱洲亥,祝郦伟,等.搅拌在Ni-diamond复合电沉积中的电化学行为[J].稀有金属材料与工程,2014,43(2):470-474.
[7]ANNA G,MAREK N,KATARZYNA B,et al.Influence of current density on microstructure and properties of electrodeposited nickel-alumina composite coatings[J].Journal of alloys and compounds,2014,615(s1):406-410.