Research on T91 steel refining technology through EAF-LF-VD process route;

Transient liquid phase bonding of T91 steel using two-step heating process;

Effect of process parameters on the microstructures and properties of T91 steel TLP joint;

Discussion about the method of life assessment for steel T91;

Study on Hot-piercing Performance of Steel T91 for High Pressure Boiler Service;

In this paper, the microstructure features in the welded metal and heat affected zone of heat-resistant steel T91, which was welded by different processes, are analyzed through metallography and SEM techniques.

Therefore, high-pressure boiler tubes T91 and T23, which will be applied in the thermal power sta tions with great capacity, were developed by Baosteel .

The influence of technological parameter such as preheat temperature, heat treatment temperature, weld heat input and welding consumable on the weld of T91/P91 steel was synthetically analysed by means of SMAW during the course of welding process.

The study and development of T91/P91 steel and the main performance index were introduced in this paper.

With the SCRI model,reliability-based creep-rupture life prediction of T91/P91 steels was performed,whereas the reliability of creeprupture life prediction evaluated in consideration of the dispersivity of functional data and fluctuation of service conditions.