Effect of NiCrMoNb Alloying Coating on the Oxidation Resistance of TiAl Intermetallics
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TG172.82 TG146.23
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Abstract:
The effect of a sputtered NiCrMoNb alloy coating on the oxidation resista nce of the intermetallic compound Ti Al was investigated.The bare TiAl alloy exhibited poor ox idation resistance at 1223K due to th e formation of a TiO 2 -base scale which tended to spall off.The NiCrMoNb alloy coating greatly impr oved the oxidation resistance due to the formation of an adherent,dense,and fine-grained Al 2 O 3 -rich scale.Furthermore,inter-diffusion of Ni,Cr,Mo,Nb was observed betwe en the coating and substrate.
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[Zheng Chuanlin, Xu Zhong, Xie Xishan, He Zhiyong, Dong Jianxin, Zhang Maicang . Effect of NiCrMoNb Alloying Coating on the Oxidation Resistance of TiAl Intermetallics[J]. Rare Metal Materials and Engineering,2003,(1):32~36.] DOI：[doi]