Development of Press Hardening Steel with High Resistance to Hydrogen Embrittlement

2015 ◽  
pp. 571-576
Author(s):  
Jian Bian ◽  
Hardy Mohrbacher ◽  
Hongzhou Lu ◽  
Wenjun Wang
Keyword(s):  
Hydrogen Embrittlement ◽  
High Resistance ◽  
Press Hardening ◽  
Press Hardening Steel

Influence of vanadium on the hydrogen embrittlement of aluminized ultra-high strength press hardening steel

2018 ◽  
Vol 735 ◽  
pp. 448-455 ◽  
Author(s):  
Lawrence Cho ◽  
Eun Jung Seo ◽  
Dimas H. Sulistiyo ◽  
Kyoung Rae Jo ◽  
Seong Woo Kim ◽  
...  
Keyword(s):  
Hydrogen Embrittlement ◽  
High Strength ◽  
Press Hardening ◽  
Press Hardening Steel

scholarly journals Alloy Optimization for Reducing Delayed Fracture Sensitivity of 2000 MPa Press Hardening Steel

Metals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 853 ◽  
Author(s):  
Hardy Mohrbacher ◽  
Takehide Senuma
Keyword(s):  
Tensile Strength ◽  
Hydrogen Embrittlement ◽  
Alloying Elements ◽  
Steel Alloy ◽  
Delayed Fracture ◽  
Press Hardening ◽  
Automotive Body ◽  
Body Design ◽  
Delayed Cracking ◽  
Press Hardening Steel

Press hardening steel (PHS) is widely applied in current automotive body design. The trend of using PHS grades with strengths above 1500 MPa raises concerns about sensitivity to hydrogen embrittlement. This study investigates the hydrogen delayed fracture sensitivity of steel alloy 32MnB5 with a 2000 MPa tensile strength and that of several alloy variants involving molybdenum and niobium. It is shown that the delayed cracking resistance can be largely enhanced by using a combination of these alloying elements. The observed improvement appears to mainly originate from the obstruction of hydrogen-induced damage incubation mechanisms by the solutes as well as the precipitates of these alloying elements.

Formability analysis of thin press hardening steel sheets under isothermal and non-isothermal conditions

2016 ◽  
Vol 10 (3) ◽  
pp. 405-419 ◽  
Author(s):  
G. Georgiadis ◽  
A. E. Tekkaya ◽  
P. Weigert ◽  
S. Horneber ◽  
P. Aliaga Kuhnle
Keyword(s):  
Press Hardening ◽  
Isothermal Conditions ◽  
Steel Sheets ◽  
Press Hardening Steel

Microstructure evolution of a 55wt.% Al–Zn coating on press hardening steel during rapid heating

2015 ◽  
Vol 281 ◽  
pp. 35-43 ◽  
Author(s):  
Chang Wook Lee ◽  
Won Seok Choi ◽  
Yeol Rae Cho ◽  
Bruno C. De Cooman
Keyword(s):  
Microstructure Evolution ◽  
Rapid Heating ◽  
Press Hardening ◽  
Press Hardening Steel
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