Application of high-throughput compression creep testing in rapid evaluation of high temperature service properties of cobalt base superalloys
Qiang Zhu*, Zhen Xu
Southern University of Science and Technology, Shenzhen, 518055, China
EXTENDED ABSTRACT: High-throughput experimental technology is one of the three major supporting platforms and key technologies of "Materials Genome Initiative", which can greatly shorten the material developing time and reduce costs. Creep test is a key part of developing aeroengine and gas turbine blade materials. In this study, the hydraulic uniformly distributed load technology is used to carry out parallelly 8 samples compression creep tests in one run, to produce a large amounts of creep data, in significantly reduced the experiment costs and time consuming. The obtained high-throughput compression creep data can be used to predict stress rupture life and quickly evaluate service performance of materials. This developed technology can also be used for rapid screening creep properties during development of new materials. In this study, achievements of above described rapid determination of a prediction model of stress rupture life, creep stress exponent and optimal chemical composition of single and poly-crystal cobalt base superalloys will be presented. The high-throughput compression creep technology has great potential to develop advanced high temperature materials in engineering applications.
Professor Qiang Zhu is a Chair Professor of the Department of Mechanical and Energy Engineering in Southern University of Science and Technology. He graduated from the Universität Erlangen- Nürnberg, Germany, majoring in material science and obtained a Dr.-Ing. Degree in 1994. He has worked at the Nancy School of Mines in France, the University of Sheffield and the University of Cambridge in UK. He was the vice chief engineer and chief scientist in the General Research Institute for Nonferrous Metals (Beijing)， vice director of the National Research Center for Non Ferrous Metal Based Composites, the established director of the Beijing Research Center for Advanced Forming Technologies of Metals. Dr. Zhu has been granted research projects with almost 100 million RMB in recent years and has given a number of invited speeches to internationally well-known academic conferences as well as universities and enterprises, published more than 200 articles and as chief editor published 2 academic books. He is also applied or granted 1 international invention patent and 50 Chinese patents.