Characterization of hydrogen embrittlement in automotive advanced high strength steels

2011 ◽  
Vol 42 (12) ◽  
pp. 1105-1110 ◽  
Author(s):  
M. Loidl ◽  
O. Kolk ◽  
S. Veith ◽  
T. Göbel
Keyword(s):  
Hydrogen Embrittlement ◽  
High Strength Steels ◽  
High Strength ◽  
Advanced High Strength Steels

Characterization of Inclusions in 3rd Generation Advanced High-Strength Steels

2019 ◽  
Vol 50 (4) ◽  
pp. 1674-1685 ◽  
Author(s):  
Muhammad Nabeel ◽  
Michelia Alba ◽  
Andrey Karasev ◽  
Pär G. Jönsson ◽  
Neslihan Dogan
Keyword(s):  
High Strength Steels ◽  
High Strength ◽  
Advanced High Strength Steels

Techniques for investigation of hydrogen embrittlement of advanced high strength steels

2018 ◽  
Vol 36 (5) ◽  
pp. 413-434 ◽  
Author(s):  
Darya Rudomilova ◽  
Tomáš Prošek ◽  
Gerald Luckeneder
Keyword(s):  
Hydrogen Embrittlement ◽  
Secondary Ion Mass Spectrometry ◽  
High Strength Steels ◽  
Thermal Desorption Spectroscopy ◽  
High Strength ◽  
Atmospheric Conditions ◽  
Kelvin Probe ◽  
Advanced High Strength Steels ◽  
Scanning Kelvin Probe ◽  
Atmospheric Exposure

AbstractProduction volumes of advanced high strength steels (AHSS) are growing rapidly due to material and energy savings they provide in a number of application areas. In order to use their potential fully, it is necessary to minimize any danger of unexpected failures caused by hydrogen embrittlement. It is possible only if deeper understanding of underlying mechanisms is obtained through further research. Besides description of main grades of AHSS and mechanisms of HE, this paper reviews available tools for determination of hydrogen content and susceptibility to HE focusing on atmospheric conditions. Techniques such as slow strain rate testing, constant load testing, electrochemical permeation technique, scanning Kelvin probe and scanning Kelvin probe force microscopy have already been used to study the effect of hydrogen entered under atmospheric exposure conditions. Nanoindentation, hydrogen microprint technique, thermal desorption spectroscopy, Ag decoration or secondary ion mass spectrometry can be also conducted after atmospheric exposure.

A review of hydrogen embrittlement of martensitic advanced high-strength steels

2016 ◽  
Vol 34 (3) ◽  
pp. 153-186 ◽  
Author(s):  
Jeffrey Venezuela ◽  
Qinglong Liu ◽  
Mingxing Zhang ◽  
Qingjun Zhou ◽  
Andrej Atrens
Keyword(s):  
Hydrogen Embrittlement ◽  
High Strength Steels ◽  
High Strength ◽  
Applied Strain ◽  
Service Performance ◽  
Hydrogen Trapping ◽  
Comprehensive Understanding ◽  
Advanced High Strength Steels ◽  
Laboratory Results ◽  
Applied Strain Rate

AbstractThe martensitic advanced high-strength steels (MS-AHSS) are used to create fuel-efficient, crashworthy cars. Hydrogen embrittlement (HE) is an issue with high-strength steels; thus, the interaction of hydrogen with MS-AHSS needs to be studied. There are only a few published works on the HE of MS-AHSS. The current literature indicates that the HE susceptibility of MS-AHSS is affected by (i) the strength of the steel, (ii) the applied strain rate, (iii) the concentration of hydrogen, (iv) microstructure, (v) tempering, (vi) residual stress, (vii) fabrication route, (viii) inclusions, (ix) metallic coatings, and (x) specific precipitates. Some of the unresolved issues include (i) the correlation of laboratory results to service performance, (ii) establishing the conditions or factors that lead to a certain HE response, (iii) studying the effect of stress rate on HE, and (iv) a comprehensive understanding of hydrogen trapping in MS-AHSS.

Hydrogen Embrittlement of Automotive Advanced High-Strength Steels

2012 ◽  
Vol 43 (11) ◽  
pp. 4075-4087 ◽  
Author(s):  
Gianfranco Lovicu ◽  
Mauro Bottazzi ◽  
Fabio D’Aiuto ◽  
Massimo De Sanctis ◽  
Antonella Dimatteo ◽  
...  
Keyword(s):  
Hydrogen Embrittlement ◽  
High Strength Steels ◽  
High Strength ◽  
Advanced High Strength Steels

Hydrogen Embrittlement and Hydrogen Trapping Behaviour in Advanced High Strength Steels

2021 ◽  
Vol 1016 ◽  
pp. 1344-1349
Author(s):  
Ali Smith
Keyword(s):  
Hydrogen Embrittlement ◽  
Retained Austenite ◽  
Hydrogen Diffusion ◽  
Hydrogen Permeation ◽  
High Strength Steels ◽  
High Strength ◽  
Hydrogen Trapping ◽  
Austenite Matrix ◽  
Advanced High Strength Steels ◽  
Step Loading

Modern advanced high strength steels (AHSS) for the automotive sector often contain retained austenite which promotes remarkable combinations of strength and ductility. These high strength steels may however be subject to a risk of hydrogen embrittlement. For the current contribution, hydrogen trapping and embrittlement behaviour were investigated in AHSS compositions having different levels of retained austenite. Hydrogen permeation tests revealed that hydrogen diffusion was slower for increased levels of retained austenite, being controlled most likely by reversible trapping at austenite-matrix interfaces. External hydrogen embrittlement tests via step loading also revealed that resistance to hydrogen was lower for increased levels of retained austenite. It was suggested that during step loading the hydrogen accumulated at austenite-matrix interfaces, leading to cracking when the applied stress was high enough.

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