Abstract
The effect of hydrogen on the mechanical properties of single crystal BCC W as well as the intrinsic mechanism was investigated by using molecular dynamics method. The bond energy of tungsten atoms was computed and the results suggest that hydrogen atoms weaken the bonds. By simulating the response of tungsten under uniaxial tensile load, the stress–strain curves for different hydrogen concentration were obtained. It was found that hydrogen has great influence on the elastic modulus and plastic deformation mechanism. Moreover, the interaction between hydrogen atoms and dislocations was simulated. The qualitative relationship between yield stress and hydrogen concentration was obtained. All the numerical results suggest that the retention of hydrogen atoms causes significant degradation of the mechanical properties of tungsten.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
