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β处理的TC-6合金的显微组织主要取决于β处理后的冷却速度。拉伸试验中,断口类型和塑性与显微组织有关,淬火试样的孔洞在马氏体晶界产生并沿晶界长大,缓冷试样的孔洞在α-β相界面产生并向α片长大。在变形过程中,由于孔洞发生碰撞和聚集导致材料断裂。
The microstructure of the β-treated TC-6 alloy mainly depends on the cooling rate after the β-treatment. In the tensile test, the fracture type and plasticity are related to the microstructure. The pores of the quenched sample are generated in the martensite grain boundaries and grow along the grain boundaries. The pores of the slowly cooled specimen are generated at the α-β phase interface and the α Growing up. During the deformation, the material breaks due to collision and accumulation of holes.