Role of Cu on hydrogen embrittlement behavior in Fe–Mn–C–Cu TWIP steel

2015 ◽  
Vol 40 (23) ◽  
pp. 7409-7419 ◽  
Author(s):  
Young Jin Kwon ◽  
Taekyung Lee ◽  
Junmo Lee ◽  
Young Soo Chun ◽  
Chong Soo Lee
Keyword(s):  
Hydrogen Embrittlement ◽  
Twip Steel

On the Utility of Crystal Plasticity Modeling to Uncover the Individual Roles of Microdeformation Mechanisms on the Work Hardening Response of Fe-23Mn-0.5C TWIP Steel in the Presence of Hydrogen

2018 ◽  
Vol 140 (3) ◽  
Author(s):  
B. Bal ◽  
M. Koyama ◽  
D. Canadinc ◽  
G. Gerstein ◽  
H. J. Maier ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Hydrogen Embrittlement ◽  
Twip Steel ◽  
Strain Response ◽  
Deformation Response ◽  
Self Consistent ◽  
Twip Steels ◽  
Simulation Results ◽  
The Individual ◽  
Experimental Findings

This paper presents a combined experimental and theoretical analysis focusing on the individual roles of microdeformation mechanisms that are simultaneously active during the deformation of twinning-induced plasticity (TWIP) steels in the presence of hydrogen. Deformation responses of hydrogen-free and hydrogen-charged TWIP steels were examined with the aid of thorough electron microscopy. Specifically, hydrogen charging promoted twinning over slip–twin interactions and reduced ductility. Based on the experimental findings, a mechanism-based microscale fracture model was proposed, and incorporated into a visco-plastic self-consistent (VPSC) model to account for the stress–strain response in the presence of hydrogen. In addition, slip-twin and slip–grain boundary interactions in TWIP steels were also incorporated into VPSC, in order to capture the deformation response of the material in the presence of hydrogen. The simulation results not only verify the success of the proposed hydrogen embrittlement (HE) mechanism for TWIP steels, but also open a venue for the utility of these superior materials in the presence of hydrogen.

Role of gaseous impurities in the hydrogen‐embrittlement of steel

1977 ◽  
Vol 14 (1) ◽  
pp. 588-592 ◽  
Author(s):  
V. Srikrishnan ◽  
P. J. Ficalora
Keyword(s):  
Hydrogen Embrittlement

Role of γ′ characteristic on the hydrogen embrittlement susceptibility of Fe–Ni–Cr alloys

2015 ◽  
Vol 101 ◽  
pp. 75-83 ◽  
Author(s):  
Shenghu Chen ◽  
Mingjiu Zhao ◽  
Lijian Rong
Keyword(s):  
Hydrogen Embrittlement

Role of elongated MnS inclusions in hydrogen embrittlement of high-strength steels

Metal Science ◽  
1982 ◽  
Vol 16 (12) ◽  
pp. 543-554 ◽  
Author(s):  
T. V. Venkatasubramanian ◽  
T. J. Baker
Keyword(s):  
Hydrogen Embrittlement ◽  
High Strength Steels ◽  
High Strength

OS2102 Role of deformation twin on hydrogen embrittlement of TWIP steels

2013 ◽  
Vol 2013 (0) ◽  
pp. _OS2102-1_-_OS2102-2_
Author(s):  
Motomichi Koyama ◽  
Eiji Akiyama ◽  
Kaneaki Tsuzaki
Keyword(s):  
Hydrogen Embrittlement ◽  
Deformation Twin ◽  
Twip Steels

The Role Of Microstructures And The Diffusion Of Hydrogen In A Plain Carbon Eutectoid Steel For Pressure Vessels

2012 ◽  
Author(s):  
Ronnie Higuchi Rusli
Keyword(s):  
Hydrogen Embrittlement ◽  
Room Temperature ◽  
Pressure Vessels ◽  
Electrochemical Technique ◽  
Eutectoid Steel ◽  
Chemical Pressure ◽  
Hydrogen Retention ◽  
Cold Worked ◽  
Diffusion Of Hydrogen

An electrochemical technique was used to measure the room temperature diffusivity and trapping of hydrogen in a 0.82%C steel for chemical pressure vessels in two micro structural conditions (a) the cold worked pearlitic state and (b) the hardened and tempered state. Trapping of hydrogen occurs in both structures but with more traps in the cold worked structure. Base on experimental results and observation, different hydrogen retention (trapping) behavior operates in the two structures. It was also found that patented and cold worked steels are much less susceptible to hydrogen induced embrittlement than similar steels in the hardened and tempered condition. Key words: Diffusivity of hydrogen; hydrogen embrittlement; cold–worked

scholarly journals Role of Microstructure in Susceptibility of X70 Pipeline Steel to Hydrogen Embrittlement

2010 ◽  
Vol 654-656 ◽  
pp. 162-165 ◽  
Author(s):  
D. Hejazi ◽  
A.J. Haq ◽  
N. Yazdipour ◽  
D.P. Dunne ◽  
Frank J. Barbaro ◽  
...  
Keyword(s):  
Hydrogen Embrittlement ◽  
Fracture Surface ◽  
Heat Affected Zone ◽  
Pipeline Steel ◽  
Rolled Strip ◽  
Bend Tests ◽  
Point Bend ◽  
Hot Rolled ◽  
Surface Observations

In order to investigate the susceptibility of steels to hydrogen embrittlement as a function of their microstructure X70 steel was chosen in different conditions: normalized transfer bar, as-received hot rolled strip and heat affected zone (HAZ). Notched and fatigue pre-cracked samples were subjected to electrochemical hydrogen charging to achieve 2 ppm hydrogen content. Three point bend tests were conducted on as-received and hydrogen charged samples. The results showed that HAZ samples are more susceptible to hydrogen embrittlement than the others. This was supported by fracture surface observations.

Wear Resistance Research of Advanced High Strength Steels

2016 ◽  
Vol 850 ◽  
pp. 197-201
Author(s):  
Chao Zhi ◽  
Yi Fei Gong ◽  
Ai Min Zhao ◽  
Jian Guo He ◽  
Ran Ding
Keyword(s):  
Wear Resistance ◽  
Twip Steel ◽  
High Strength Steels ◽  
High Strength ◽  
Wear Performance ◽  
Dp Steel ◽  
Advanced High Strength Steels ◽  
Wear Mode ◽  
Surface Phase Transformation

The wear performance and wear mechanism under two-body abrasion of five advanced high strength steels, i.e. Nanobainite (NB) steel, Tempered Martensitic (TM) steel, Dual Phase (DP) steel, Transformation Induced Plasticity (TRIP) Steel and Twining Induced Plasticity (TWIP) steel were studied. By using the scanning electron microscopy (SEM), we investigated the wearing surface. Phase transformation strengthening behavior was also be discussed by analyzing the surface and sub-surface after abrasion. The results showed that micro-cutting was the major role of wear mode in the condition of two-body abrasion. In the circumstance of two-body abrasion, hardness was an important factor, the property of wear resistance enhanced while the hardness increased except for TM steel. NB steel possessed the best wear resistance which was 1.71 times higher than that of TWIP steel. The retained austenite transformed into martensite which can improve the hardness so that it enhanced the wear resistance of NB steel.

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