Abstract
Hydrogen embrittlement of iron and low strength steels has been studied for a long time. Its mechanism, however has not been explained clearly yet. Fractography is often used as a method for the study of the fracture mechanism. The fracture process, for example, microvoid coalescence (MVC), cleavage, grain boundary fracture and so on, can be determined by means of fractography. Then it is possible to understand by which process hydrogen causes the embrittlement. The purpose of the present work is to investigate the characteristics of such fracture surfaces and to deduce the fracture mechanism. As for the embrittlement of iron and steels, they often occur after a fair amount of plastic deformation, which strongly depends on the crystallographic orientation and temperature. In this paper, the fracture surfaces of the hydrogen embrittlement are investigated with various crystallographic orientation and temperatures.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
