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Elsayed, Hamdi
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document
Hydrogen embrittlement (HE) of advanced high-strength steels (AHSS)
Abstract
Advanced high-strength steels (AHSS) have emerged interest in the automotive industry, because of their potential to reduce weight and to<br/>increase fuel efficiency. However, with increasing strength steels become prone to hydrogen embrittlement (HE) and stress corrosion cracking.<br/>Hydrogen absorbed during production or service can easily penetrate the components and lead to time-delayed brittle failure. The delay in time is<br/>crucial, because structural components have to be crack free for the whole lifetime of a car. Successful assessment strategies for AHSS are still<br/>rare and experimental testing is very time consuming and expensive. Furthermore, HE tests performed under controlled laboratory conditions for<br/>limited time and extrapolation to the lifetime of a car needs special consideration.