Invited Speaker

Assoc. Prof. Chengxu Wang

Yantai University
E-mail: cxwang@ytu.edu.cn

Title:

Oxidative Wear Behaviors of Inconel 625 Alloy in a Simulated Rotary Calcination Furnace Environment at 600 and 800 ℃

Profile:

Wang Chengxu, Ph.D., University of Science and Technology of China ( Institute of Metal Research, Chinese Academy of Sciences ), Associate Professor of Yantai University, Head of the Shandong Provincial Youth Innovation Team, Research direction for the corrosion and protection of nuclear power materials, presided over the National Natural Science Foundation of China, published more than 10 SCI papers.

Abstract:

This study investigates the oxidative wear behaviors of Inconel 625 alloy in a simulated rotary calcination furnace environment at 600 and 800 ℃. Results show that both the coefficient of friction and wear loss increase with temperature from 600 ℃to 800 ℃. At 600 ℃, the alloy exhibits strong resistance to oxidative wear, due to the formation of an intact oxide scale composed of Ni-Cr-O and Cr-rich layers. However, the oxide scale formed at 800 ℃ features a coarser grain structure, coupled with increased wear debris, leads to higher surface roughness and coefficient of friction. The oxide scale at 800 ℃ has poor effectiveness in protecting the substrate, being more prone to spallation and contributing to greater wear loss.