Microstructure of interface between Y-modified ion plated Ti(Y)N coating and substrate steel A3

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作者
Liu, Changqing [1 ]
Yu, Li [1 ]
Yu, Zhiming [1 ]
Jin, Zhujing [1 ]
Wu, Weitao [1 ]
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[1] Inst of corrosion and Protection of, Metals, Acad Sinica, Shenyang, China
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Metallographic microstructure - Rare earth additions - Surface treatment;
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摘要
The fine microstructure of the Y-modified ion plated Ti(Y)N coating/substrate steel A3 system has been examined by means of TEM and microdiffraction technique. It was revealed that the interface consists of 3 sublayers, i.e. α-Fe+Y6Fe23, Ti+Y+FeTi and Ti2N+YN+TixNy. The thickness of them are about 200, 50 and 120 nm respectively. The phases at the transition area seem to have certain orientation relations. The mechanism of interface formation has also been discussed.
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