The effects of sacrificial coatings on hydrogen embrittlement and re-embrittlement of ultra high strength steels

2008 ◽  
Vol 50 (4) ◽  
pp. 1066-1079 ◽  
Author(s):  
D. Figueroa ◽  
M.J. Robinson
Keyword(s):  
Hydrogen Embrittlement ◽  
High Strength Steels ◽  
High Strength ◽  
Ultra High Strength Steels

Hydrogen embrittlement susceptibility and permeability of two ultra-high strength steels

2006 ◽  
Vol 48 (8) ◽  
pp. 1926-1938 ◽  
Author(s):  
L.W. Tsay ◽  
M.Y. Chi ◽  
Y.F. Wu ◽  
J.K. Wu ◽  
D.-Y. Lin
Keyword(s):  
Hydrogen Embrittlement ◽  
High Strength Steels ◽  
High Strength ◽  
Ultra High Strength Steels

scholarly journals Investigation of Mechanical Tests for Hydrogen Embrittlement in Automotive PHS Steels

Metals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 934 ◽  
Author(s):  
Renzo Valentini ◽  
Michele Maria Tedesco ◽  
Serena Corsinovi ◽  
Linda Bacchi ◽  
Michele Villa
Keyword(s):  
Hydrogen Embrittlement ◽  
Hot Stamping ◽  
High Strength Steels ◽  
High Strength ◽  
Hydrogen Uptake ◽  
Mechanical Tests ◽  
Automotive Components ◽  
Four Point Bending ◽  
Innovative Materials ◽  
Ultra High Strength Steels

The problem of hydrogen embrittlement in ultra-high-strength steels is well known. In this study, slow strain rate, four-point bending, and permeation tests were performed with the aim of characterizing innovative materials with an ultimate tensile strength higher than 1000 MPa. Hydrogen uptake, in the case of automotive components, can take place in many phases of the manufacturing process: during hot stamping, due to the presence of moisture in the furnace atmosphere, high-temperature dissociation giving rise to atomic hydrogen, or also during electrochemical treatments such as cataphoresis. Moreover, possible corrosive phenomena could be a source of hydrogen during an automobile’s life. This series of tests was performed here in order to characterize two press-hardened steels (PHS)—USIBOR 1500® and USIBOR 2000®—to establish a correlation between ultimate mechanical properties and critical hydrogen concentration.

Texture analysis and joint performance of laser-welded similar and dissimilar dual-phase and complex-phase ultra-high-strength steels

2021 ◽  
Vol 174 ◽  
pp. 111035
Author(s):  
Ajit Kumar Pramanick ◽  
Hrishikesh Das ◽  
Ji-Woo Lee ◽  
Yeyoung Jung ◽  
Hoon-Hwe Cho ◽  
...  
Keyword(s):  
Texture Analysis ◽  
High Strength Steels ◽  
High Strength ◽  
Dual Phase ◽  
Complex Phase ◽  
Joint Performance ◽  
Ultra High Strength Steels
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