Indentation Size Effect on the Mechanical Properties of Supersonic Plasma Sprayed NiCr-Cr3C2 Coating

摘要：

In this paper, NiCr-Gr3C2 coating was deposited onto AISI 1045 steel substrate by employing supersonic plasma spraying technique. The surface and crosssection 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 OliverPharr 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.

关键词： nanoindentation mechanical property indentation size effect

作者: Zhu Una Xu Binshi Wang Haidou Wang Chengbiao

作者单位: School of Engineering and Technology, China University of Geosciences, Beijing 100083, China Nationa National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering, Beijing 100072, School of Engineering and Technology, China University of Geosciences, Beijing 100083, China

会议类型: 国际会议

会议名称: 第六届表面工程国际会议

会议地点: 西安

会议语种:英文

页码: 296-298

在线出版日期: 2011-05-11（万方平台首次上网日期，不代表论文的发表时间）