Effect of grain boundary engineering on hydrogen embrittlement in Fe-Mn-C TWIP steel at various strain rates

2018 ◽  
Vol 142 ◽  
pp. 213-221 ◽  
Author(s):  
Young Jin Kwon ◽  
Hyun Joo Seo ◽  
Jae Nam Kim ◽  
Chong Soo Lee
Keyword(s):  
Hydrogen Embrittlement ◽  
Grain Boundary ◽  
Twip Steel ◽  
Strain Rates ◽  
Grain Boundary Engineering

scholarly journals Grain-boundary engineering markedly reduces susceptibility to intergranular hydrogen embrittlement in metallic materials

2009 ◽  
Vol 57 (14) ◽  
pp. 4148-4157 ◽  
Author(s):  
S. Bechtle ◽  
M. Kumar ◽  
B.P. Somerday ◽  
M.E. Launey ◽  
R.O. Ritchie
Keyword(s):  
Hydrogen Embrittlement ◽  
Grain Boundary ◽  
Metallic Materials ◽  
Grain Boundary Engineering

On Grain Boundary Engineering of UFG Metals and Alloys for Enhancing their Properties

2008 ◽  
Vol 584-586 ◽  
pp. 22-28 ◽  
Author(s):  
Ruslan Valiev
Keyword(s):  
Grain Boundary ◽  
Mechanical Behavior ◽  
Low Temperatures ◽  
High Strain ◽  
Metals And Alloys ◽  
Strain Rates ◽  
Grain Boundary Engineering ◽  
High Angle ◽  
Ultrafine Grained ◽  
Strength And Ductility

The concept of grain boundary (GB) engineering of ultrafine-grained (UFG) metals and alloys is proposed for enhancement of properties by tailoring different GBs (low angle and high angle ones, special and random, equilibrium and non-equilibrium) and formation of GB segregations and precipitations using SPD processing. By variations of regimes and routes of SPD processing we show for several light alloys (Al and Ti) the ability to produce UFG materials with different grain boundaries, and this can have a dramatical effect on mechanical behavior of the processed materials. This paper demonstrates also several new examples of this approach for attaining superior strength and ductility as well as enhanced superplasticity at low temperatures and high strain rates in various UFG metals and alloys.

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