Phase and Microstructure Properties of Laser Cladding NiAl Intermetallic Compound Coating at Elevated Tem-perature

摘要：

The phase and microstructure properties of laser cladding single phase NiAl coating at elevated temperature of 800 °C were investigated by means of XRD, SEM, and HRTEM. It was found that Ni3Al phase with a fine equiaxial microstructure precipitated along NiAl grain boundaries via the solid-state diffusion of Ni atoms during heating process. NiAl and Ni3Al phases have a common <110> zone axis. The phase and microstructure evolutions of NiAl during heating process can acquire well understand the diffusion behavior of laser cladding NiAl intermetallic compound coating and provide better guidance on its production and practical use.

关键词： nickel aluminides intermetallic compounds coating phase and microstructure evolution

作者: Yu Youjun Zhou Jiansong Yang Lianbin Chen Jianmin Zhou Huidi Guo Chun Wang Lingqian

作者单位: State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, 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: 116-119

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）