scholarly journals Nano-Indentation Creep Behavior of the Vacuum Electron Beam Weldment of 12Cr10Co3W2MoNiVNbNB Heat Resistant Steel

2021 ◽  
Vol 62 (5) ◽  
pp. 625-630
Author(s):  
Jiankun Xiong ◽  
Jianping Yang ◽  
Haiyan Zhao ◽  
Guijun Mao ◽  
Fen He ◽  
...  
Keyword(s):  
Electron Beam ◽  
Creep Behavior ◽  
Indentation Creep ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Nano Indentation ◽  
Heat Resistant

Investigation on Creep Behavior of Grade 91 Heat-Resistant Steel at 923K

2016 ◽  
Vol 853 ◽  
pp. 163-167
Author(s):  
Fa Cai Ren ◽  
Xiao Ying Tang
Keyword(s):  
Creep Rate ◽  
Creep Behavior ◽  
Creep Deformation ◽  
Deformation Behavior ◽  
Minimum Creep Rate ◽  
Resistant Steel ◽  
Creep Tests ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Grade 91

Creep deformation behavior of SA387Gr91Cl2 heat-resistant steel used for steam cooler has been investigated. Creep tests were carried out using flat creep specimens machined from the normalized and tempered plate at 973K with stresses of 100, 125 and 150MPa. The minimum creep rate and rupture time dependence on applied stress was analyzed. The analysis showed that the heat-resistant steel obey Monkman-Grant and modified Monkman-Grant relationships.

scholarly journals Relationship between Creep Behavior and Microstructure in Martensitic Heat Resistant Steel

1998 ◽  
Vol 84 (12) ◽  
pp. 896-901 ◽  
Author(s):  
Kengo IWANAGA ◽  
Toshihiro TSUCHIYAMA ◽  
Setsuo TAKAKI
Keyword(s):  
Creep Behavior ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant

Microstructure and properties of Co3W2 heat-resistant steel by vacuum electron beam welding

2019 ◽  
Vol 34 (01n03) ◽  
pp. 2040058
Author(s):  
Youyi Zhang ◽  
Guoqing Gou
Keyword(s):  
Tensile Strength ◽  
Electron Beam ◽  
High Temperature ◽  
Weld Metal ◽  
Base Metal ◽  
Electron Beam Welding ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
The Impact

12Cr10Co3W2MoNiVNbNB (Co3W2) is a new type of martensitic heat-resistant steel, which is mainly used in high-temperature dynamic, static blades, high-temperature bolts and other components of ultra-supercritical steam turbines. The Co3W2 steel was joined by vacuum electron beam welding, and the microstructures of the joints were analyzed. The hardness, tensile strength and impact toughness of the joints were investigated. The results show that the joints mainly consist of weld metal, fusion-line, heat-affected zone (HAZ) and base metal, the microstructure of the weld metal is a coarse martensite. The hardness of the weld metal is about 326 HV higher than that of the base metal, and the tensile strength of the joints is 939 MPa, which can reach 98.63% of base metal. The impact absorbed energy of weld metal is such that the weakest part of the welded joints during the impact process is about 18.5 J.

Analysis of dimple shape on fractographic heat-resistant steel images

2018 ◽  
Vol 2018 (46) ◽  
pp. 34-37
Author(s):  
I. B. Ivasenko ◽  
◽  
O. R. Berehulyak ◽  
R. A. Vorobel ◽  
◽  
...  
Keyword(s):  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant
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