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Trans. Nonferrous Met. Soc. China 24(2014) 3196-3200 Influence of recovery heating rate on shape memory effect in up-quenched Cu-Al-Mn alloy Shan-ling WANG1, Qin YANG2, Xiao-lan LI2, Hua-bei PENG2... 2014; accepted 23 April 2014 Abstract: The effect of recovery heating rate on shape memory effect of the up-quenched Cu-8.88Al-10.27Mn (mass fraction, %) alloy was investigated by optical microscopy......
Influences of 2.5wt%Mn addition on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloysUgur SariDepartment of Computer Education and Instructional Technology,Faculty... memory alloy(SMA) were studied by means of scanning electron microscopy(SEM),transmission electron microscopy(TEM),and differential scanning calorimeter(DSC).The experimental results show that Mn......
of Ni56Mn21Cu4Ga19high-temperature shape memory ribbons subjected to different annealing conditions were investigated and compared with that of the bulk master alloy. It was shown that c phases precipitated in the bulk...Martensitic Transformation and Its Thermal Cycling Stability in Ni56Mn21Cu4Ga19High-Temperature Shape Memory RibbonXi-Li Lu1,De-Xi Su1,Feng Chen1,Wei-Li Liu1,Yang-Guang Shi2,Yun-Xiang Tong1,Li Li11......
temperature tensile strained NiTi shape memory alloy fiber reinforced 6082 aluminum matrix composite[J]. Scripta Materialia, 1997, 36(9): 1037-1043. [2] ARMSTRONG W D, et al. An experimental and modeling... with flat surface. All the phenomena above show it is feasible to control the thermal properties of a material by a proper design of the dislocation texture. Key words: shape memory alloy; martensitic......
记忆效应随训练次数增加而增大 , 在适当的训练次数和训练温度下 , 其最大的冷却和加热时的形状恢复量之比 (R) 值约为 30 %. 关键词: 铜基形状记忆合金;形状记忆效应;预变形; 中图分类号: TG139.6 收稿日期:1999-07-30 Shape memory effect of Cu 11.19Al 6.43Mn alloy Abstract: The effect of shape memory of Cu 11.19Al 6.43Mn alloy was measured, an influence of pre deformation degree, recovery temperature and training times on shape......
多元氮化物薄膜及其沉积工艺对NiTi记忆合金性能和组织的影响 杨元政1,郭冰2,成晓玲3,王国庆1,冉炜2,白晓军1,匡同春3,舒大龙2,廖志明1,谢致薇1 (1.广东工业大学,材料与能源学院,广东,广州,510006;2.中山大学,附属第一医院,广东,广州,510080;3.广东工业大学,实验研究中心,广东,广州,510080) 摘要:采用真空阴极电弧沉积技术,在NiTi记忆合金表面沉积了TiAlBN和TiAlCrFeSiBN多元膜和TiN薄膜,研究了薄膜成份及沉积工艺对NiTi合金性能和组织的影响.结果表明,在NiTi合金表面沉积TiAlBN和TiAlCrFeSiBN多元膜和TiN薄膜均可降低合金在Hank溶液中的Ni溶出速率,其中多元膜的Ni溶出速率最小;提高偏压对沉积了TiAlBN多元膜的NiTi合金的Ni溶出速率无明显影响,但使沉积了TiAlCrFeSiBN膜的NiTi合......
: 23-28, 80-90. [2] CHEN J H, SUN W, WANG D Z. Investigation on the fracture behavior of shape memory alloy NiTi[J]. Metall Mater Trans A, 2005, 36: 941-955. [3] ZHOU Y M, ZHANG J, FAN G L DING X D...:TG113.25 文献标志码:A Cyclic deformation characteristics of Ti-Ni-V shape memory alloy HE Zhi-rong1, WANG......
of Materials Science and Engineering, Hebei University of Technology, Tianjin 300132, China) Abstract: Cu-Al-Mn-Nb shape memory alloy with broad hysteresis and low martensitic transformation temperature...% after bending deformation at surface strain of 4%. Aging at room temperature for 2 months the shape recovery rate of the alloy has not evidently deteriorated. Key words: Cu-Al-Mn-Nb; shape memory......
表面氧化及离子注氮对NiTi形状记忆合金耐腐蚀性能的影响 杨大智1,华英杰1,孟长功3,王崇太2 (1.大连理工大学,材料工程系,辽宁,大连,116023;2.海南师范学院,化学系,海南,海口,571158;3.大连理工大学,化学系,辽宁,大连,116023) 摘要:采用电化学测试的方法,研究了表面氧化以及表面氧化-离子注氮两种表面改性方式对NiTi形状记忆合金在人体生理模拟液(Hank′s 溶液)中腐蚀行为的影响.腐蚀电位和极化曲线的测量结果表明表面氧化-离子注氮的方法使NiTi合金材料的腐蚀电位正移,维钝电流密度下降,钝化电位区间扩大,合金表面耐蚀性明显提高.尤其是NiTi合金在进行氮离子注入后,测得击穿电位显著上升,增强了表面膜的抗局部腐蚀能力,因而表面氧化-离子注氮的改性方法可使材料的耐蚀性达到最佳.通过XPS的分析发现,离子注氮后合金表面形成氮化钛相以及富含羟基的化学效应......
, DONG Yin-sheng, GUO Chao, SHENG Xiao-bo, LIN Ping-hua, GHU Paul-K. Surface treatment of NiTi shape memory alloy by modified advanced oxidation process [J]. Transactions of Nonferrous Metals Society...Trans. Nonferrous Met. Soc. China 25(2015) 3723-3728 Surface modification with SiO2 coating on biomedical TiNi shape memory alloy by sol-gel method Shu YANG1, Fei ZHOU2, Tao XIAO3, Da-bao XU4, Zhou......
