Progress in design and optimization of wide-temperature-range superelastic shape memory alloys
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摘要:
超弹性是形状记忆合金最重要的功能特性之一,其本质来源于应力诱导的可逆热弹性马氏体相变。超弹性温度窗口主要受合金化学成分与微观组织结构的协同影响。为此,系统回顾了近10年来具有宽温域超弹性特性的多类形状记忆合金体系的发展现状,重点比较了不同合金在超弹性温度窗口、可恢复应变大小及临界应力对温度的依赖性等关键性能参数方面的差异与特点。通过对比分析,为新型宽温域超弹性形状记忆合金的设计、制备与工程应用提供了理论支持与实践参考,并对该领域未来的发展方向进行了展望。
Abstract:Superelasticity is one of the most important functional characteristics of shape memory alloys, which essentially originates from stress-induced reversible thermoelastic martensitic transformation. The superelastic working temperature range is mainly influenced by the synergistic effect of alloy chemical composition and microstructure. The development status of several shape memory alloy systems with broad temperature range superelastic properties over the last ten years is methodically reviewed in this article, with an emphasis on contrasting the features and variations of various alloys in important performance parameters like recoverable strain, temperature dependence of critical stress, and superelastic temperature window. This article uses comparative analysis to support the design, preparation, and engineering application of novel wide-temperature-range superelastic shape memory alloys theoretically and practically, as well as to offer opportunities for the field's future development.
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表 1 宽温域超弹性Ni-Ti基SMA性能参数
Table 1. Performance parameters of wide temperature range superelastic Ni-Ti based SMA
成分 超弹性温区/K 可逆应变/% $ \dfrac{\mathrm{d} \sigma_{\mathrm{c}}}{ \mathrm{d} T } \bigg/$(MPa·K−1) 加载方式 状态 参考文献 Ni51.89Ti48.11 40~220 3.0~4.0 −8.77/2.11 压缩 S/STG [32] Ni51.8Ti48.2 40~180 2.0~2.5 −2.71/2.50 压缩 S/STG [33] Ni51.63Ti48.37 70~160 ~2.0 1.00 压缩 S/STG [32] Ni51.54Ti48.46 80~280 ~2.0 3.95 压缩 S/STG [32] Ni50.8Ti49.2 123~323 3.5~4.0 拉伸 CD/STG [16] Ni50.8Ti49.2 4.2~475 2.5~5.0 拉伸 CD/STG [47] Ni50.8Ti49.2 119~329 4.0~6.0 拉伸 CD/STG [51] Ni50.8Ti49.2 123~423 4.8~8.6 拉伸 CD/STG [53] Ni50.6Ti49.4 25~300 1.75~2.2 拉伸 NG/STG [17] Ni50Ti50 93~453 4.0~6.0 拉伸 CD/STG [52] Ti49.2Ni44.8Co6 123~223 ~4.0 3.17 拉伸 CD/NG [48] Ti47.6Ni42.4Cu10 70~200 ~1.5 −3.25/1.96 压缩 S [34] Ni49.4Ti48.1Sn2.5 113~298 3.6~5.0 压缩 S/STG [39] Ni49.4Ti47.6Sn3 83~298 ~5.5 压缩 S/STG [39] NiTiNb 77~333 ~5.0 −2.39/3.19 拉伸 CD/NG [49] Ni50.2Ti49.8/
Ni46Ti47Nb3Fe477~413 3.0~4.0 0.24/2.93 拉伸 CD/NG/CO [50] 注:S表示固溶态,CD表示冷变形,NG表示纳米晶,CO表示复合材料。 表 2 宽温域超弹性Fe基SMA性能参数
Table 2. Performance parameters of wide temperature range superelastic Fe-based SMA
成分 超弹性温区/K 可逆应变/% $\dfrac{\mathrm{d} \sigma_{\mathrm{c}}}{ \mathrm{d} T }\bigg/ $(MPa·K−1) 加载方式 状态 参考文献 Fe43.5Mn34Al15Ni7.5 223~423 ~5.5 0.530 拉伸 PG [60] Fe42Mn34Al15Ni7.5Ti1.5 123~293 ~1.5 0.340 压缩 SG [61] Fe43.5Mn34Al15Ni7.5 10~300 ~1.3 0.510 压缩 SG [19] Fe42Mn34Al13.5Cr3Ni7.5 10~473 1.1~2.3 0.085 压缩 SG [19] Fe41Mn34Al12.5Cr5Ni7.5 10~300 1.2~1.4 −0.370 压缩 SG [19] Fe38Mn36Al11Cr7.5Ni7.5 10~293 ~1.2 −0.860 压缩 SG [19] Fe43.5Mn34Al15Ni7.5 193~433 1.7~2.0 0.540 拉伸 [1 0 0] SG [64] Fe43.5Mn34Al15Ni7.5 193~433 1.5~2.0 0.410 压缩 [1 0 0] SG [64] Fe43.5Mn34Al15Ni7.5 193~433 1.8~2.0 0.580 压缩 [1 2 3] SG [66] Fe68.8Pd31.2 240~350 0.6~3.7 压缩 [0 0 1] SG [69] 注:PG表示多晶,SG表示单晶。 表 3 宽温域超弹性Cu基SMA性能参数
Table 3. Performance parameters of wide temperature range superelastic Cu-based SMAs
成分 超弹性温区/K 可逆应变/% $\dfrac{\mathrm{d} \sigma_{\mathrm{c}}}{ \mathrm{d} T }\bigg/ $(MPa·K−1) 加载方式 状态 参考文献 Cu70.6Al17.5Mn11.9 215~393 ~10.0 1.86 拉伸 CG [8] Cu68.8Al17.9Mn13.3 77~353 6.0~10.0 2.00 拉伸 CG [8] Cu68Al17Mn15 77~223 0.8~1.3 2.23 拉伸 BG [72] Cu68Al17Mn15 4.2~160 ~2.0 2.05 拉伸 SG [10] Cu71.1Al17.2Mn11.7 223~313 ~8.0 2.92 拉伸 BG [9] 注:BG表示竹节晶织构,CG表示粗晶,SG表示单晶。 表 4 其他宽温域超弹性SMA性能参数
Table 4. Performance parameters of other wide temperature range superelastic SMA
成分 超弹性温区/K 可逆应变/% $\dfrac{\mathrm{d} \sigma_{\mathrm{c}}}{ \mathrm{d} T }\bigg/ $(MPa·K−1) 加载方式 状态 参考文献 Ni45Co5Mn36In14 4.2~200 ~2.0 −0.83 压缩 SG [74] Co51Cr27Ga11Si11 198~298 ~3.5 −3.18 压缩 SG [75] Co55.7Cr23.3Al10.5Si10.5 198~423 ~2.5 −1.12/1.09 压缩 [0 0 1] SG [76] Ni35Co20Fe18Ga27 123~423 ~11.0 拉伸 SG [77] Mg78.7Sc21.3 123~298 ~1.0 拉伸 STG [14] Ti75.25Al20Cr4.75 4.2~400 ~5.7 −2.13/2.49 拉伸 SG [78] 注:SG表示单晶。 -
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