摘要
In this paper,NiCr-Cr3C2 coating was deposited onto AISI 1045 steel substrate by employing supersonic plasma spraying technique.The surface and cross-section morphologies of the NiCr-Cr3C2 coating were observed by SEM.The phase constituents of the coating were identified by XRD.The SEM images showed that the coating was very dense,and it had a low porosity structure.The XRD pattern implied that the coating was mainly composed of NiCr,Cr3C2 and Cr7C2.Nanoindentation tests were performed on the coating surface by a Nano indenter.The widely used Oliver-Pharr method was adopted to extract the mechanical properties of the coating.The hardness exhibited a strong peak-load-dependence,i.e.indentation size effect;the elastic modulus was not affected by indentation size effect.
In this paper,NiCr-Cr3C2 coating was deposited onto AISI 1045 steel substrate by employing supersonic plasma spraying technique.The surface and cross-section morphologies of the NiCr-Cr3C2 coating were observed by SEM.The phase constituents of the coating were identified by XRD.The SEM images showed that the coating was very dense,and it had a low porosity structure.The XRD pattern implied that the coating was mainly composed of NiCr,Cr3C2 and Cr7C2.Nanoindentation tests were performed on the coating surface by a Nano indenter.The widely used Oliver-Pharr method was adopted to extract the mechanical properties of the coating.The hardness exhibited a strong peak-load-dependence,i.e.indentation size effect;the elastic modulus was not affected by indentation size effect.
作者
Zhu Lina1,2,Xu Binshi2,Wang Haidou2,Wang Chengbiao1 1 School of Engineering and Technology,China University of Geosciences,Beijing 100083,China
2 National Key Laboratory for Remanufacturing,Academy of Armored Forces Engineering,Beijing 100072,China
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2012年第S1期296-298,共3页
Rare Metal Materials and Engineering
基金
Advanced Maintenance Research Project(9140A270304090C8501)
National Natural Science Foundations of China(50975285,50735006)
Equipment Research Project,and Fundamental Research Funds for the Central Universities(2009PY08)
