沈阳工业大学学报2011,Vol.33Issue(4):361-365,370,6.
热喷涂涂层与电镀层的结合与界面
Bonding and interface between thermal sprayed coating and electroplated layer
摘要
Abstract
In order to enhance the bonding strength between thermal sprayed coating and electroplated layer,three self-bonding materials including QAl9-2,Ni95Al5 and 0Cr25Al5 were chosed as the transition layer materials and were deposited between the thermal sprayed 3Cr13 coating and elctroplated nickel layer.The results show that the Ni95AL5 transition layer shows the best effect,and can increase the bonding strength of the coating system by at least one time.The effect of both QAl9-2 and 0Cr25Al5 transition layers is inferior to that of the Ni95AL5 transition layer.The microstructure at the interface of thermal sprayed coating and electroplated layer was analyzed with scanning electron microscopy(SEM),and the strengthening mechanism of the trainsition layers was investigated.In present coating system,the metallurgical bonding between self-bonding coating and electroplated nickel layer occurs.In addition,the free surfaces of the self-bonding coatings provide an excellent mechanical bonding interface for subsequently deposited 3Cr13 coating,which ensures the reliable bonding of the coating system.关键词
快速模具制造/电镀/热喷涂/自结合材料/结合强度/微观组织/机械结合/冶金结合Key words
rapid mold manufacture/electroplaling/thermal spraying/self-bonding material/bondingstrength/microstructure/mechanical bonding/metallurgical bonding分类
矿业与冶金引用本文复制引用
张忠礼,丁勇,杨国强,沈威威..热喷涂涂层与电镀层的结合与界面[J].沈阳工业大学学报,2011,33(4):361-365,370,6.基金项目
沈阳市科技攻关资助项目(070442). ()