功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2013年
20期
2936-2939
,共4页
电刷镀%纳米Al2O3%铜基复合镀层%组织形貌
電刷鍍%納米Al2O3%銅基複閤鍍層%組織形貌
전쇄도%납미Al2O3%동기복합도층%조직형모
electro-brush plating%nano-Al2 O3%copper based composite coating%structure and morphology
在紫铜基体上分别制备了普通快速铜镀层和纳米Al2 O3/快速铜复合刷镀层,采用扫描电镜、金相显微镜、显微硬度计、摩擦磨损实验机对比研究了两种镀层的表面形貌、截面组织形貌、显微硬度和耐磨性。结果表明,纳米 Al2 O3颗粒的加入显著改变镀层组织形貌与性能。与普通快速铜镀层相比,纳米铜基复合刷镀层表面平整,组织更加细化致密,显微硬度增大,摩擦系数降低,减弱了磨损面的犁削效应和粘着效应,耐磨性优于普通快速铜镀层。
在紫銅基體上分彆製備瞭普通快速銅鍍層和納米Al2 O3/快速銅複閤刷鍍層,採用掃描電鏡、金相顯微鏡、顯微硬度計、摩抆磨損實驗機對比研究瞭兩種鍍層的錶麵形貌、截麵組織形貌、顯微硬度和耐磨性。結果錶明,納米 Al2 O3顆粒的加入顯著改變鍍層組織形貌與性能。與普通快速銅鍍層相比,納米銅基複閤刷鍍層錶麵平整,組織更加細化緻密,顯微硬度增大,摩抆繫數降低,減弱瞭磨損麵的犛削效應和粘著效應,耐磨性優于普通快速銅鍍層。
재자동기체상분별제비료보통쾌속동도층화납미Al2 O3/쾌속동복합쇄도층,채용소묘전경、금상현미경、현미경도계、마찰마손실험궤대비연구료량충도층적표면형모、절면조직형모、현미경도화내마성。결과표명,납미 Al2 O3과립적가입현저개변도층조직형모여성능。여보통쾌속동도층상비,납미동기복합쇄도층표면평정,조직경가세화치밀,현미경도증대,마찰계수강저,감약료마손면적리삭효응화점착효응,내마성우우보통쾌속동도층。
Traditional Cu coating and Cu/nano-Al2 O3 composite coating were prepared respectively with electro-brush plating on pure copper matrix.The surface morphology,section structure,micro-hardness and wear re-sistance of both coatings were determined and comparatively analyzed with canning electron microscope,metal-lographic microscope,digital micro-hardness tester and friction-wear tester.The results showed that,the structure,morphology and properties of Cu/nano-Al2 O3 composite coating are changed due to adding nano-Al2 O3 particles to the Cu based coating.The surface morphology of Cu/nano-Al2 O3 composite coating was more leveling and smooth,the microstructure was more compact,micro-hardness was higher and friction coefficient was lower than that of traditional Cu coating.Cu/nano-Al2 O3 coating has strong resistance effects on plough and adhesion wear.The wear resistance of Cu/nano-Al2 O3 composite coating was superior to that of traditional Cu coating.