【摘要】 在旋转圆盘仪多相流损伤实验中，ＮｉＴｉ合金表现出十分良好的抗冲刷磨损及空蚀和冲刷磨损联合作用性能，拉伸和循环应力－应变力学测量表明，ＮｉＴｉ合金具有类橡皮弹性吸收能量的相变伪弹性特点 ，分析认为，相变伪弹性是该合金表现出良好抗损伤性能的主要原因．更多还原

【Abstract】 The resistance of NiTi alloy to abrasion and cavitation-abrasion (combined action of abrasion and cavitation erosion) in multiphase flow was investigated by using a rotating disc equipment. OCr13Ni5Mo stainless steel, which is now used as materials for rotating wheels of hydroturbines, was also tested under the same conditions for comparison. The results show that NiTi alloy has much bet- ter resistance to abrasion and cavitation-abrasion than OCr13Ni5Mo stainless steel. Results from the tensile and cycle stress-strain response of NiTi alloy show that the alloy has the rubber-similar char- acteristic. It could absorb impact energy for its recoverable phase transformation, i.e. pseudoelastic. Super resistance of NiTi alloy is closely connected with its good pseudoelasticity.更多还原