Experimental Study of the Creep Behavior of Inconel 718

In this paper, the creep behavior and constitutive equation of Inconel 718, which has been produced in IRAN, have been determined using experimental data. For this purpose, test samples have been machined from as received bars and their creep behavior and properties have been examined by conducting uni-axial creep tests. Constant temperatures and constant load uni-axial creep tests have been carried out at two temperatures of 660 and 675°C, subjected to constant loads, which produce initial stresses ranging from 490 to 690 MPa that are below the yield stress. The experimental data have been used to obtain the creep constitutive parameters using numerical optimization techniques. Also, based on these results, the quality of the domestic produced superralloy has been verified and it has been shown that its characteristics match with the international standards.

کلیدواژه های Experimental Study of the Creep Behavior of Inconel 718:

Creep ، Constitutive Equation ، Superalloy ، Inconel 718