论文部分内容阅读
研究了淬火温度对Ｆｅ － １８ Ｍｎ － ５Ｓｉ － ８Ｃｒ － ４Ｎｉ 记忆合金回复应力的影响。结果表明：合金经变形后加热时产生的最大回复应力σｈ 和加热后冷却到室温时的回复应力σｃ 都随淬火温度的升高而增加，在６５０ ℃达到最大值；随后随淬火温度的进一步升高而快速下降，但是σｃ 下降的程度要比σｈ 大得多；当淬火温度高于８５０ ℃后，淬火温度的进一步升高对它们几乎没有影响；任一淬火温度下，加热后冷却到室温时的回复应力 σｃ都远大于加热时产生的最大回复应力σｈ。
The effect of quenching temperature on the recovery stress of Fe - 18 Mn - 5Si - 8Cr - 4Ni memory alloy was studied. The results show that the maximum stress σh produced by the deformation after heating and the stress σc recovered when the steel is cooled to room temperature increase with the increase of the quenching temperature and reach the maximum value at 650 ℃ and then increase with the quenching temperature High and rapid decline, but the degree of σc decline is much greater than σh; quenching temperature is higher than 850 ℃, the quenching temperature has little effect on their further increase; at any quenching temperature, cooled to room temperature after heating The response stress σc is far greater than the maximum response stress σh generated when heated.