中国铸造装备与技术
中國鑄造裝備與技術
중국주조장비여기술
China Foundry Machinery & Technology
2015年
5期
54-57
,共4页
铝合金%微弧氧化%二硫化钼%复合膜层
鋁閤金%微弧氧化%二硫化鉬%複閤膜層
려합금%미호양화%이류화목%복합막층
Aluminum alloy%Micro-arc oxidation%MoS2%Composite coating
通过在微弧氧化电解液中添加固体润滑材料二硫化钼颗粒,在铝合金表面直接制备了含二硫化钼的微弧氧化复合膜层.XRD分析结果表明,膜层中的主要组成物质为氧化铝和2H晶型的二硫化钼.二硫化钼能显著的提高膜层的厚度.对膜层的表面和截面通过SEM和EDS分析发现,含二硫化钼微弧氧化复合膜层的表面较不含二硫化钼的微弧氧化普通膜层表面更加平滑,孔径更加细小,二硫化钼在膜层中分布均匀.在干摩擦条件下,含二硫化钼的微弧氧化膜层相比于不含二硫化钼的膜层具有更小的摩擦系数.
通過在微弧氧化電解液中添加固體潤滑材料二硫化鉬顆粒,在鋁閤金錶麵直接製備瞭含二硫化鉬的微弧氧化複閤膜層.XRD分析結果錶明,膜層中的主要組成物質為氧化鋁和2H晶型的二硫化鉬.二硫化鉬能顯著的提高膜層的厚度.對膜層的錶麵和截麵通過SEM和EDS分析髮現,含二硫化鉬微弧氧化複閤膜層的錶麵較不含二硫化鉬的微弧氧化普通膜層錶麵更加平滑,孔徑更加細小,二硫化鉬在膜層中分佈均勻.在榦摩抆條件下,含二硫化鉬的微弧氧化膜層相比于不含二硫化鉬的膜層具有更小的摩抆繫數.
통과재미호양화전해액중첨가고체윤활재료이류화목과립,재려합금표면직접제비료함이류화목적미호양화복합막층.XRD분석결과표명,막층중적주요조성물질위양화려화2H정형적이류화목.이류화목능현저적제고막층적후도.대막층적표면화절면통과SEM화EDS분석발현,함이류화목미호양화복합막층적표면교불함이류화목적미호양화보통막층표면경가평활,공경경가세소,이류화목재막층중분포균균.재간마찰조건하,함이류화목적미호양화막층상비우불함이류화목적막층구유경소적마찰계수.
MoS2-contain coating was prepared directly on 2219 aluminum alloy surface by micro-arc oxidation through adding MoS2 particles in the electrolyte. X-ray diffraction (XRD) result indicates that the main phase of coating is Al2O3 and 2H crystal type of MoS2. Adding MoS2 in the electrolyte can increases the thickness of coating. The results of the SEM and EDS analysis show that the section of coating is complete and MoS2 distributes averagely in the coating. Compared with the ordinary coating which was prepared under the same technological parameters, the pore diameter of composite coating decreases and surface is smoother. The friction coefficient of MoS2-contain coating is less than the ordinary coating's under the dry rub condition.
