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本文探讨Fe-Ni-Cr-Ti合金在冷变形和时效状态中两种振动模式(扭振和横振)中的f(共振频率)-T(温度)曲线,以及冷变形压下量和时效温度对扭振模式中f_s(扭振共振频率)-T曲线的影响,指出:在冷变形状态的两种振动模式中,其f-T曲线相似但不重合;时效状态时扭振模式中的f_s-T曲线极大值与横振模式中的f_l(横振共振频率)-T曲线极小值所对应的温度移至室温附近,同一材料,随着时效温度升高,在扭振模式下其频率温度系数由正变负,在横振模式下由负变正,扭振模式下,随着冷变形压下量增加或时效温度降低,f_s-T曲线极大值移向高温,可通过调整冷变形压下量和时效温度以控制极大值对应温度,获得较低的频率温度系数值。
In this paper, the f (resonance frequency) -T (temperature) curve of Fe-Ni-Cr-Ti alloy in two modes of vibration (torsional vibration and transverse vibration) in cold deformation and aging is discussed. Temperature on the torsional vibration mode (f_s) -T curve in the torsional vibration mode, it is pointed out that the fT curves are similar but not coincident in the two vibration modes of the cold deformation state, and the f_s- The temperature corresponding to the minimum value of f-1 (Transverse Resonance Frequency) -T curve in the T-curve maxima and Transverse mode is moved to the vicinity of room temperature, and the same material as its aging temperature increases, its frequency in torsional vibration mode The temperature coefficient changes from positive to negative, from negative to positive in the transverse vibration mode, torsional vibration mode, as the cold deformation reduction increases or the aging temperature decreases, f_s-T curve to the maximum high temperature can be adjusted by cold Deformation reduction and aging temperature to control the temperature corresponding to the maximum value to obtain a lower frequency temperature coefficient value.