(燕山大學材料工程系， 秦皇島 066004)
摘 要: 通過磁控濺射及其后處理等方法在立方氮化硼(簡寫cBN)表面形成均勻的Ti 鍍層。用DTA、XRD、SEM及EPMA等方法研究了鍍層與cBN間的界面反應及產(chǎn)物、鍍層 與Cu-Co基金屬粘結劑之間的作用，并用經(jīng)不同方法處理的cBN試樣有不同的抗彎強度說明了這種作用。結果發(fā)現(xiàn)，cBN表面 Ti 鍍層只有在與其形成Ti、B、N的化合物后，才能達到cBN與粘結劑的冶金結合，而濺射后真空熱處理是實現(xiàn)這一作用的有效方法。
關鍵字: cBN Ti鍍層 界面 粘結劑
（Department of Materials Engineering, Yanshan University, Qin huangdao 066004）
Abstract:Well-distributed Ti coatings were formed on the surface of cBN grits by means of magnetron sputtering method. DTA, XRD, SEM and EPMA techniques were used to investigate the reaction and compsition of interface between cBN and the coating. Bond strength between coating and bond in the compsite made of Ti-cladding cBN and Cu-Co alloy bond was studied by bend test. Experimental results show that only boride and nitride films are formed on the surfaces of cBN grits, which increases the bond strength between cBN grit and the bond . This effect can be achieved conveniently and economically by using vacuum heat treatment of coated cBN grits.
Key words: cBN Ti-coating interface bond
