Author:
Ren Facai,Su Jiansheng,Tang Xiaoying
Abstract
Abstract
The failure causes of a superheater pipe of a supercritical once-through boiler were analyzed based on the chemical composition analysis, tensile test, hardness and microstructure analysis. The results show that the microstructure changing from martensite to austenite due to the high temperature exceeded Ac1 causes the sharply decrease in the strength of superheater pipe.