Creep deformation and rupture behavior of 10Cr-3Co-2W heat-resistant steel weldments in ultra supercritical power units

2021 ◽  
pp. 105984
Author(s):  
Yanyan Huang ◽  
Yucun Zhan ◽  
Xiaowu Luo ◽  
Jiankun Xiong ◽  
Jianping Yang ◽  
...  
Keyword(s):  
Creep Deformation ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Rupture Behavior

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.

Growth Kinetics of Laves Phase and Its Effect on Creep Rupture Behavior in 9Cr Heat Resistant Steel

2016 ◽  
Vol 23 (7) ◽  
pp. 685-691 ◽  
Author(s):  
Zhi-xin Xia ◽  
Chuan-yang Wang ◽  
Chen Lei ◽  
Yun-ting Lai ◽  
Yan-fen Zhao ◽  
...  
Keyword(s):  
Growth Kinetics ◽  
Creep Rupture ◽  
Laves Phase ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Kinetics Of ◽  
Rupture Behavior

scholarly journals Creep Rupture Behavior in Dissimilar Weldment between FB2 and 30Cr1Mo1V Heat-Resistant Steel

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Jiankun Xiong ◽  
Jianping Yang ◽  
Haiyan Zhao ◽  
Lin Yang ◽  
Yang Guo ◽  
...  
Keyword(s):  
Subgrain Size ◽  
Fracture Initiation ◽  
Creep Rupture ◽  
Transgranular Fracture ◽  
Resistant Steel ◽  
Laves Phases ◽  
Heat Resistant Steel ◽  
Heat Resistant ◽  
Fracture Character ◽  
Rupture Behavior

Creep rupture behavior of dissimilar weldments between FB2 and 30Cr1Mo1V heat-resistant steel by multipass welding at 783 K (510°C) under different stresses (260 to 420 MPa) was researched. The fitted creep rupture exponent is 14.53, and the 10,000 h extrapolating strength values predicted by the power law and Larson-Miller parameter show good agreement with experimental data. The samples exhibit a ductile fracture character and fracture in the weld fusion zone, which has a highly heterogeneous microstructure and grains with different morphologies and sizes and an obvious softening. There exist a decrease in the dislocation and precipitate density and an increase in the subgrain size in the weld metal after creep. The rupture is a transgranular fracture characterized by dimples as a result of microvoid coalescence. Laves phases along with copper-rich precipitates are observed in the vicinity of fracture surface, which creates a stress concentration that can cause transgranular fracture initiation.

scholarly journals Effect of B on Microstructural Change during Creep Deformation in High Cr Ferritic Heat Resistant Steel

2002 ◽  
Vol 88 (10) ◽  
pp. 678-685 ◽  
Author(s):  
Tsukasa AZUMA ◽  
Kazuhiro MIKI ◽  
Yasuhiko TANAKA ◽  
Tohru ISHIGURO
Keyword(s):  
Creep Deformation ◽  
Microstructural Change ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant

scholarly journals Low-Stress Creep Deformation in Long-Term Aged Ferritic Heat-Resistant Steel

2014 ◽  
Vol 55 (5) ◽  
pp. 842-849 ◽  
Author(s):  
Shigeto Yamasaki ◽  
Masatoshi Mitsuhara ◽  
Ken-ichi Ikeda ◽  
Satoshi Hata ◽  
Hideharu Nakashima
Keyword(s):  
Creep Deformation ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant

scholarly journals Low Stress Creep Deformation in High Chromium Ferritic Heat-resistant Steel Evaluated by Helicoid Spring Creep Test Method

2014 ◽  
Vol 100 (5) ◽  
pp. 688-695 ◽  
Author(s):  
Shigeto Yamasaki ◽  
Masatoshi Mitsuhara ◽  
Ken-ichi Ikeda ◽  
Satoshi Hata ◽  
Hideharu Nakashima
Keyword(s):  
Creep Test ◽  
Creep Deformation ◽  
Test Method ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
High Chromium ◽  
Heat Resistant

Creep deformation characterization of heat resistant steel by stress change test

2009 ◽  
Vol 86 (9) ◽  
pp. 556-562 ◽  
Author(s):  
Hiroyuki Hayakawa ◽  
Satoshi Nakashima ◽  
Junichi Kusumoto ◽  
Akihiro Kanaya ◽  
Hideharu Nakashima
Keyword(s):  
Creep Deformation ◽  
Stress Change ◽  
Resistant Steel ◽  
Heat Resistant Steel ◽  
Heat Resistant
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