Hydrogen thermal desorption relevant to delayed-fracture susceptibility of high-strength steels

2001 ◽  
Vol 32 (2) ◽  
pp. 339-347 ◽  
Author(s):  
M. Nagumo ◽  
M. Nakamura ◽  
K. Takai
Keyword(s):  
Thermal Desorption ◽  
High Strength Steels ◽  
High Strength ◽  
Delayed Fracture ◽  
Fracture Susceptibility

Constant-load delayed fracture test of atmospherically corroded high strength steels

2011 ◽  
Vol 257 (19) ◽  
pp. 8275-8281 ◽  
Author(s):  
Eiji Akiyama ◽  
Katsuhiro Matsukado ◽  
Songjie Li ◽  
Kaneaki Tsuzaki
Keyword(s):  
High Strength Steels ◽  
High Strength ◽  
Constant Load ◽  
Fracture Test ◽  
Delayed Fracture

Thermal desorption analysis for hydrogen trapping in microalloyed high-strength steels

2017 ◽  
Vol 61 (4) ◽  
pp. 637-648 ◽  
Author(s):  
Enrico Steppan ◽  
Philipp Mantzke ◽  
Benjamin R. Steffens ◽  
Michael Rhode ◽  
Thomas Kannengiesser
Keyword(s):  
Thermal Desorption ◽  
High Strength Steels ◽  
High Strength ◽  
Hydrogen Trapping ◽  
Thermal Desorption Analysis

scholarly journals Delayed Fracture of High Strength Steels

1994 ◽  
Vol 80 (9) ◽  
pp. 679-684 ◽  
Author(s):  
Shinsaku MATSUYAMA
Keyword(s):  
High Strength Steels ◽  
High Strength ◽  
Delayed Fracture

Application of Local Approach to Hydrogen Embrittlement Fracture Evaluation of High Strength Steels

2007 ◽  
Vol 539-543 ◽  
pp. 2155-2161 ◽  
Author(s):  
Shusaku Takagi ◽  
Satoshi Terasaki ◽  
Kaneaki Tsuzaki ◽  
Tadanobu Inoue ◽  
Fumiyoshi Minami
Keyword(s):  
Hydrogen Embrittlement ◽  
Hydrogen Content ◽  
Fracture Property ◽  
Martensitic Steel ◽  
High Strength Steels ◽  
High Strength ◽  
New Method ◽  
Local Approach ◽  
Delayed Fracture ◽  
Ultra High Strength Steel

A new method for evaluating the hydrogen embrittlement (HE) susceptibility of ultra high strength steel was studied in order to propose a new method for assessing the delayed fracture property. The material used was 1400MPa tempered martensitic steel with the chemical composition 0.40C-0.24Si-0.81Mn-1.03Cr-0.16Mo(mass%). The local approach originally used for evaluating the brittle fracture property was applied to HE susceptibility assessment after modifying the method to include the effect of hydrogen content. Critical HE data used in the modified local approach was obtained by a stepwise test in which alternating processes of stress increase and stress holding were repeated until the specimen fractured. The specimen used in the stepwise test was 10 mm in diameter and the stress concentration factor was 4.9. Assessment of HE susceptibility for specimens with other dimensions entailed the use of a critical hydrogen content for failure, Hc, representing the maximum hydrogen content among the unfractured specimens in the HE test with constant loading. Matters to be noted for obtaining the material parameters are discussed.

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