形状记忆合金经适当温度下的塑性变形可以有效地提高马氏体的稳定性,从而使相变滞后得以大幅度提高.本文根据马氏体相变热力学和动力学,并结合相关的实验结果,研究了弹性应变能弛豫和相变滞后的关系.结果表明,塑性变形产生的位错以及变形的第二相颗粒对逆马氏体相变温度的提高具有一定作用,但塑性变形导致应变能释放才是形变提高形状记忆合金相变滞后的主导因素.
参考文献
| [1] | JANSSEN J;HUMBEECK J V;CHANDRASEKARAN M et al.ICOMAT-82.DELAEY L, CHANDRASEKARAN M,ed[Z].Leuven,1982. |
| [2] | ARAB A;AHLERS M .ICOMAT-82.DELAEY L,CHANDRASEKARAN M[Z].Leuven,1982. |
| [3] | SCARSBROOK M;COOK J M;STOBBS W M .The stabilization of martensite in Cu-Zn-Al shape memory alloys[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1984,15:1977. |
| [4] | SCARSBROO G;COOK J M;STOBBS W M .ICOMAT-82. DELAEY L, CHANDRASEKARAN M,ed[Z].Leuven,1982. |
| [5] | STOBBS W M .[J].Microscopy Journal,1983,129:307. |
| [6] | COOK J M;O′KEEFE M A;SMITH D J et al.[J].Journal of Microscopy,1983,129:295. |
| [7] | LIN H C;WU S K;CHOU T S et al.The effect of cold rolling on the martensitic transformation of an equiatomic TiNi alloy[J].Acta Metallurgica Et Materialia,1991,39:2069. |
| [8] | PIAO M;OTSUKA K;MIYAZAKI S et al.Mechanism of the As temperature increase by pre-deformation in thermoelastic alloys[J].Materials Transactions,1993,34:919. |
| [9] | JIANG C;XU H .Effect of pre-deformation on hysteresis in TiNiFe shape memory alloys[J].Materials Science Forum,2000,327-328:111. |
| [10] | SIMPSON J A;MELTON K;DUERIG T .[P].United States Patent 4 770 725,1986. |
| [11] | PIAO M;MIYAZAKI S;OTSUKA K .Characteristics of deformation and transformation in Ti44-Ni47Nb9 shape memory alloys[J].Materials Transactions,1992,33:346. |
| [12] | 赵连城;蔡伟 .Ni-Ti-Nb宽滞后形状记忆合金的形变诱发马氏体相变及其可逆性[J].金属学报,1997,33:90. |
| [13] | 蔡伟 .Ni-Ti-Nb记忆合金的应变恢复特性与形变马氏体的逆转变[D].哈尔滨工业大学,1994. |
| [14] | DUERIG T W;MELTON K;PROFT J L.Wide hysteresis shape memory alloys[A].London:Btterworth-Heinemann,1990:130. |
| [15] | ZHANG C S;ZHAO L C;DUERIG T W et al.Effects of deformation on the transformation hysteresis and shape memory effect in a Ni47Ti44Nb9 alloy[J].Scripta Metallurgica et Materialia,1990,24:1807. |
| [16] | LIU Y;GALVIN S P .Criteria for pseudoelasticity in near-equiatomic NiTi shape memory alloys[J].Acta Materialia,1997,45:4431. |
| [17] | TONG H G;WAYMAN M .Characteristic temperature and other properties of thermoelastic martensites[J].Acta Materialia,1974,22:887. |
| [18] | OLSON G B;COHEN M .Thermoelastic behavior in martensitic transformations[J].Scripta Metallurgica et Materialia,1975,9:1247. |
| [19] | KAUFMAN L;COHEN M.Thermodynamics and kinetics of martensitic transformations[A].New York:Plenum Press,1958:165. |
| [20] | OTSUKA K;REN X .Recent development in the research of shape memory alloys[J].INTERMETALLICS,1999,7:511. |
| [21] | YANG J H;SIMPSON J W .Stress-induced transformation and superelasticity in Ni-Ti-Nb alloys[J].Journal de Physique,1995,5:C8-771. |
| [22] | CAI W;ZHANG C S;ZHAO L C .Recovery stress of Ni-Ti-Nb wide-hysteresis shape memory alloy under constant strain and thermomechanical cycling[J].Journal of Materials Science Letters,1994,13:8. |
| [23] | HUMBEECK J V;STALMANS R;CHANDRASEKARAN M.On the stability of shape memory alloys[A].London:Btterworth-Heinemann,1990:96-105. |
| [24] | ZHAO L C;DUERIG T W;MELTON K N et al.The study of niobium-rich precipitates in a Ni-Ti-Nb shape memory alloy[J].Scripta Metallurgica et Materialia,1990,24:221. |
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