Effect of Heat Treatment on Microstructure and Mechanical Behavior of a Welded Joint from Heat Resistant Steel SA-335 P5

2021 ◽  
Author(s):  
Donghui Guo ◽  
Zhentai Zheng ◽  
Jinling Yu ◽  
Meng He ◽  
Fen Shi ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Mechanical Behavior ◽  
Welded Joint ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant

Microstructure and properties of welded joint for T92 ferritic heat resistant steel

2017 ◽  
pp. 140523 ◽  
Author(s):  
Zhiquan Wu ◽  
Xin Zhang ◽  
Xiaoguo Song ◽  
Chengyong Ma ◽  
Yanchang Qi ◽  
...  
Keyword(s):  
Welded Joint ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Microstructure And Properties ◽  
Heat Resistant

Effect of Ausforming on Creep Strength of G91 Heat-Resistant Steel

2018 ◽  
Vol 941 ◽  
pp. 400-406 ◽  
Author(s):  
Javier Vivas ◽  
Rosalia Rementeria ◽  
Marta Serrano ◽  
Eberhard Altstadt ◽  
David San Martín ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Creep Strength ◽  
Operating Temperature ◽  
Strengthening Mechanism ◽  
Processing Route ◽  
Resistant Steel ◽  
Creep Tests ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Conventional Heat Treatment

The major challenge in a heat-resistant steel is to generate thermally stable microstructures that allow increasing the operating temperature, which will improve the thermal efficiency of the power plant without diminishing strength or time to rupture. The strengthening mechanism in tempered martensitic 9Cr steels comes mainly from the combination of solid solution effect and of precipitation hardening by fine MX carbo-nitrides, which enhance the sub-boundary hardening. This work is focused on the effect of ausforming processing on MX nanoprecipitation, on both their distribution and number density, during the subsequent tempering heat treatment. The creep strength at 700 oC was evaluated by small punch creep tests. The creep results after ausforming were compared to those obtained after conventional heat treatment concluding, in general, that ausforming boosts the creep strength of the steel at 700 oC. Therefore, conventional ausforming thermomechanical treatment is a promising processing route to raise the operating temperature of 9Cr heat-resistant steels.

122 Effect of Multi-axial Stress on Creep Crack Growth for Welded Joint of W Added 9% Cr Ferritic Heat Resistant Steel

2007 ◽  
Vol 2007.42 (0) ◽  
pp. 43-44
Author(s):  
Ryuji Sugiura ◽  
Kazuto Suzuki ◽  
A.Toshimitsu Yokobori Jr ◽  
Masaaki Tabuchi
Keyword(s):  
Crack Growth ◽  
Welded Joint ◽  
Axial Stress ◽  
Creep Crack Growth ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Creep Crack ◽  
Heat Resistant

Microstructure and mechanical performance of welded joint between a novel heat-resistant steel and Inconel 617 weld metal

2018 ◽  
Vol 139 ◽  
pp. 279-292 ◽  
Author(s):  
Yu Zhang ◽  
Hongyang Jing ◽  
Lianyong Xu ◽  
Yongdian Han ◽  
Lei Zhao ◽  
...  
Keyword(s):  
Weld Metal ◽  
Mechanical Performance ◽  
Welded Joint ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Inconel 617

J0420201 Creep-induced Nonlinear Ultrasonic Change in ASME Gr. 91 Heat Resistant Steel Welded Joint

2015 ◽  
Vol 2015 (0) ◽  
pp. _J0420201--_J0420201-
Author(s):  
Takumi HONMA ◽  
Mizuho YOKOYAMA ◽  
Yutaka ISHII ◽  
Toshihiro OHTANI ◽  
Masaaki TABUCHI ◽  
...  
Keyword(s):  
Welded Joint ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Nonlinear Ultrasonic
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