{"title":"Influence of the composition and maximum cycling temperature on the microstructure of Cu-Al-Mn shape memory alloys","authors":"M.L. Blazquéz , C. López Del Castillo , C. Gómez","doi":"10.1016/0026-0800(89)90014-1","DOIUrl":null,"url":null,"abstract":"<div><p>The effect of the composition and maximum cycling temperature on the microstructure of Cu-Al-Mn shape memory alloys is investigated. For this purpose, two sets of alloys with constant Al content (close to 10.7 wt%) and Mn (7.0 wt%) were prepared. The influence of the composition on the microstructure of Cu-Al-Mn shape memory alloys was carried out in chill casting alloys, annealed for 5 min at 170°C. The effect of maximum cycling temperature was carried out in a Cu-10.8% wt Al-4.0% wt Mn alloy. The reverse transformation is not detected at temperatures below 400°C. Thermal cycling between 400°C and 510°C produces the precipitation of different phases, which varies the initial martensite composition and their characteristic transformation temperatures.</p></div>","PeriodicalId":100918,"journal":{"name":"Metallography","volume":"23 2","pages":"Pages 119-133"},"PeriodicalIF":0.0000,"publicationDate":"1989-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0026-0800(89)90014-1","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metallography","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0026080089900141","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
The effect of the composition and maximum cycling temperature on the microstructure of Cu-Al-Mn shape memory alloys is investigated. For this purpose, two sets of alloys with constant Al content (close to 10.7 wt%) and Mn (7.0 wt%) were prepared. The influence of the composition on the microstructure of Cu-Al-Mn shape memory alloys was carried out in chill casting alloys, annealed for 5 min at 170°C. The effect of maximum cycling temperature was carried out in a Cu-10.8% wt Al-4.0% wt Mn alloy. The reverse transformation is not detected at temperatures below 400°C. Thermal cycling between 400°C and 510°C produces the precipitation of different phases, which varies the initial martensite composition and their characteristic transformation temperatures.
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