Abstract
The polycrystalline Pt3Al coating was prepared by the arc-melting method. The fracture mechanism of Pt3Al was investigated by the theoretical investigation. The interactomic potential of Pt3Al was built by the first-principles method. The measured fracture strength of Pt3Al is 449.5 MPa. The SEM image indicates that Pt3Al shows the lamellar cleavage fracture due to the large number of slips. The MD simulation indicates that this coating exhibits intermediate brittle fracture, which is close to the experiment. The cleavage fracture of Pt3Al is attributed to the atomic cluster. The development of microcracks on slip shear band is determinate by the thermal activation.
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
