Investigation on the evolution of microstructure and texture of electroplated Ni–Ti composite coating by Rietveld method》.pdfVIP

Applied Surface Science 353 (2015) 1023–1030 Contents lists available at ScienceDirect Applied Surface Science j o u r n a l h o m e p a g e: w w w. elsev /locate/aps usc Investigation on the evolution of microstructure and texture of electroplated Ni–Ti composite coating by Rietveld method Yuantao Zhao, Fei Cai, Chengxi Wang, Ze Chai, Kaiyuan Zhu, Zhou Xu, Chuanhai Jiang ∗ School of Materials Science and Engineering, Shanghai Jiao Tong University, No.800 Dongchuan Road, Shanghai 200240, PR China a r t i c l e i n f o a b s t r a c t Article history: Rietveld refinement was utilized to investigate the evolution of microstructure and texture of the Ni–Ti Received 22 May 2015 composite coatings electroplated at different applied current densities. Scanning Electron Microscope and Received in revised form 30 June 2015 Energy Dispersive Spectroscopy were utilized to investigate the morphology and chemical composition Accepted 30 June 2015 of the coatings. Relative texture coefficients (RTC) and measured pole figures were utilized to investigate Available online 11 July 2015 the texture evolution of the coatings. The results showed that the surface morphology of the coatings changed from a colonial structure to a polyhedral one. And the incorporated Ti content decreased with Keywords: increasing applied current density. As the applied current density increased, the