Experimental Research Facility for Creep-Rupture Testing of Tantalum Alloy T-111

摘要

We have developed a research facility for computer-controlled elevated temperature tensile testing of refractory metallic alloys in an inert enviroment. In an application to tantalum alloy T-111, we have determined that a two-hour creep rupture life can be achieved at 1204 exp 0 C (0.45 T/sub m/) and 1300 exp 0 C (0.48 T/sub m/) if the applied true stresses are maintained below 46 ksi (317 MPa) and 36 ksi (248 MPa), respectively. (ERA citation 09:026345)