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memory effect at low temperature and microstructure of Cu-Al-Mn alloy LIU Chuan-xin1, ZHENG Yu-hong1, 2, LI Chong-jian1, 3, LONG Yi1, WAN Fa-rong1, 4 (1. School of Materials Science and Engineering...) Abstract: The shape memory effect of Cu-Al-Mn alloy with shape memory effect at Ms temperature of about 100 K was investigated by a self-made. XRD, OM and SEM were used to the microstructure......
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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... of vacancies and dislocations at the boundaries of twinned martensite during the slow heating. The compound defects prevent the reverse transformation of twinned martensite. Key words: Cu-Al-Mn alloy......
-yuan, et al. Microstructure, superelasticity and shape memory effect of Cu-Al-Mn-Ti shape memory alloy[J]. Journal of Xiamen University (Natural Science), 2019, 58(1): 40-47, 58-61. [2] YAMAUCHI K... be retained. Key words: Cu-Al-Mn shape memory alloy; columnar-grained structure; dynamic recrystallization; strain rate factor; high temperature rolling Foundation item: Project (51974217) supported......
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Effect of environmental temperature on damping capacity of Cu-Al-Mn alloy JIAO Yu-qin(焦玉琴)1, 2, WEN Yu-hua(文玉华) 1, LI Ning(李 宁)1, HE Jia-qiang(何加强)1, TENG Jin(滕 劲)1 1. School of Manufacturing... (mass fraction, %) alloy at different environmental temperatures. 2 Experimental The alloy was prepared by vacuum induction melting, using 99.9% Cu, 99.3% Al, 99.9% Mn (mass fraction). After being......
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Cu-Al-Mn合金马氏体结构及其在时效过程中的变化 曹玲飞1,张炳力2,徐根应3,汪明朴1,李周4 (1.中南大学材料科学与工程系,长沙,410083;2.合肥工业大学机械与汽车工程学院,合肥,230009;3.合肥工业大学材料科学与工程学院,合肥,230009;4.中南大学材料科学与工程系,长沙,410083;合肥工业大学材料科学与工程学院,合肥,230009) 摘要:利用X射线衍射...在一定程度上受到抑制,因而具有较高的抗马氏体稳定化的能力. 关键词:形状记忆合金; Cu-Al-Mn合金; 马氏体; 稳定化; [全文内容正在添加中] ......
高耐热Cu-Al-Mn形状记忆合金热循环特性 程建奕1,汪明朴1,李周1 (1.中南大学材料科学与工程学院,长沙,410083) 摘要:利用电阻-温度曲线,形状记忆效应(SME)测定和X射线衍射分析等方法研究了热循环对高Ms点(230℃)的Cu 24Al 3Mn(原子百分比,下同)形状记忆合金马氏体相变的影响.结果表明,热循环使该合金马氏体相变点下降,与此相伴随的结构变化是马氏体原子次近邻有序度下降,单斜角β趋近90°.与传统铜基记忆合金相比,该合金具有较高的抗热循环衰减能力,最高工作温度可达350℃.该合金的高耐热性来源于β1母相结构稳定,在工作温度下不易分解以及马氏体结构(β=89.6°)接近于N18R,在一定程度上抑制了热循环过程中M18R向N18R的转变,从而降低了马氏体发生稳定化的趋势. 关键词:形状记忆合金; Cu-Al-Mn合金; 马氏体; 热循环; [全文内容......