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| INFLUENCE OF Mn CONTENT ON THERMOELASTIC MARTENSITE TRANSFORMATION AND SHAPE MEMORY EFFECT IN Cu-AI-Zn-Mn-Ni ALLOYS |
| ZHAO Liancheng;YANG Jianhua Harbin Institute of Technology |
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Cite this article:
ZHAO Liancheng;YANG Jianhua Harbin Institute of Technology. INFLUENCE OF Mn CONTENT ON THERMOELASTIC MARTENSITE TRANSFORMATION AND SHAPE MEMORY EFFECT IN Cu-AI-Zn-Mn-Ni ALLOYS. Acta Metall Sin, 1985, 21(4): 8-148.
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Abstract The influence of Mn content on the transition temperature,martensite mor-phology and substructure as well as the shape memory effect in Cu-Al-Zn-Mn-Nialloys has been investigated by means of electrical resistance measurement,opticmicroscope and TEM observations.Experimental results showed that with theincrease of Mn content,the transition temperature decreases considerably and thetemperature range of the thermoelastic martensite transformation broadens;themartensitie morphology is being perfected from the parallel plates into the self-accommodation configuration;and the martensitic substructure undergoes atransition from twin to stacking fault Wpe.The perfection of the self-accommo-dation,the size of martensitic variant as well as the quenched-in vacancies havea remarkably influence on the shape memory effect of the alloys.
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Received: 18 April 1985
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1 赵连城;孙东立;雷廷权,金属学报,19(1983) ,A271．
2 Imao Tamura,Supplement to Trans.JEM,17(1976) ,59,168． |
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