Preparation and detection method of indirect tensile sample of hard alpha inclusion material in titanium alloy

• Main Authors: JI HAIBIN, YANG XINGYUAN, REN DECHUN, YANG RUI, LEI JIAFENG, CAI YUSHENG
• Format: Patent
• Language: Chinese; English
• Published: 12.08.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to the field of titanium alloy material preparation, in particular to a preparation and detection method of an indirect tensile sample of a hard alpha inclusion material in a titanium alloy. The method comprises the following steps: (1) preparing TiN inclusion block materials with different nitrogen contents by adopting a hot isostatic pressing technology; (2) processing a cake-shaped indirect tensile sample by adopting a linear cutting mode; (3) preparing a tensile sample of which the nitrogen content is lower than 12wt%; and (4) carrying out indirect tensile property test by adopting a high-temperature thermal compression testing machine at the test temperature of 900-1100 DEG C and the strain rate of 0.01 S <-1 >-10 S <-1 >. Therefore, the thermal deformation characteristic data of the TiN materials with different nitrogen contents can be accurately detected, the key technology of preparation and detection of indirect tensile samples of TiN inclusion materials is broken through, and t