|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Energy Materials 2017: Materials for Coal-Based Power
||Ni-Fe Based Alloy GH984G Used for 700℃ Coal-fired Power Plants
||Changshuai Wang, Tingting Wang, Jianting Guo, Lanzhang Zhou, Haiping Zhao, Songqian Xu
|On-Site Speaker (Planned)
To meet the requirements of 700°C ultra-supercritical (USC) coal-fired power plants, a new Ni-Fe based alloy (GH984G) has been developed. GH984G has excellent creep strength, thermal stability and resistance to oxidation/corrosion. Harmful phases were not observed even if after thermal exposure at 650-750°C for 35,000h. After exposure at 700°C for 30,000h, the yield strength has no obvious change. Its 100000h creep strength at 700°C is up to 137MPa and comparable to the level of 617B. The oxidation/corrosion evaluate at 700-800°C up to 2000h shows that it can meet the requirements of 700°C USC coal-fired power plants. Currently, the pipes and tubes with different sizes have been manufactured. Moreover, it is an economic alloy due to the elimination of Co and containing more than 20% Fe. This makes it an interesting alternative for 700°C USC coal-fired power plants and is now being evaluated at test platform for key components of China.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)