Role of microstructures on heterogeneous creep behaviour across P91 steel weld joint assessed by impression creep testing

2020 ◽  
Vol 159 ◽  
pp. 109988 ◽  
Author(s):  
T. Sakthivel ◽  
G. Sasikala ◽  
M. Vasudevan
Keyword(s):  
Weld Joint ◽  
Creep Behaviour ◽  
Creep Testing ◽  
Steel Weld ◽  
Impression Creep ◽  
P91 Steel ◽  
Steel Weld Joint

J0310303 Creep damage evaluation of low alloy steel weld joint by small punch creep testing

2015 ◽  
Vol 2015 (0) ◽  
pp. _J0310303--_J0310303-
Author(s):  
Tomoya NISHIOKA ◽  
Hiromi UEMURA ◽  
Kazunari FUJIYAMA ◽  
Yoshiatsu SAWARAGI
Keyword(s):  
Alloy Steel ◽  
Weld Joint ◽  
Creep Damage ◽  
Creep Testing ◽  
Damage Evaluation ◽  
Steel Weld ◽  
Low Alloy Steel ◽  
Small Punch ◽  
Steel Weld Joint

Study on a Kind of White Massive Microstructure in P91 Steel Weld Joint

2012 ◽  
Vol 538-541 ◽  
pp. 1522-1525
Author(s):  
Xue Xia Xu ◽  
Yan Ting Feng ◽  
Wen Peng Li ◽  
Peng Sun ◽  
Jie Ouyang ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Melting Temperature ◽  
Weld Joint ◽  
Steel Weld ◽  
Delta Ferrite ◽  
P91 Steel ◽  
Eds Analysis ◽  
Steel Weld Joint ◽  
Weld Heat

A kind of white massive microstructure in weld joint of P91 steel was first discussed by OM, SEM and EDS analysis. Results indicated that it is a kind of substance with low melting temperature other than the conventional delta ferrite. It contains high content of Cr due to improper choice of weld electrode and weld heat treatment. The existance of the abnormal microstructure will result in cracking under large stress for poor toughness. Solutions are suggested to prevent the formation of the white massive microstructure.

scholarly journals TypeIV Damage Evaluation of Low Alloy Steel Weld Joint by Small Punch Creep Testing

2013 ◽  
Vol 62 (2) ◽  
pp. 88-92 ◽  
Author(s):  
Tomoya NISHIOKA ◽  
Hiromi UEMURA ◽  
Kazunari FUJIYAMA ◽  
Yoshiatsu SAWARAGI
Keyword(s):  
Alloy Steel ◽  
Weld Joint ◽  
Creep Testing ◽  
Damage Evaluation ◽  
Steel Weld ◽  
Low Alloy Steel ◽  
Small Punch ◽  
Steel Weld Joint
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