Quick Search:       Advanced Search
万迪庆,王锦程.高阻尼镁合金Mg-0.6%Zr和Mg-Ni中内耗峰分析[J].稀有金属材料与工程(英文),2017,46(10):2790~2793.[Wan Diqing and Wan Jincheng.Illustration of internal friction peaks observed in Mg-0.6%Zr and Mg-Ni high damping magnesium alloys[J].Rare Metal Materials and Engineering,2017,46(10):2790~2793.]
Illustration of internal friction peaks observed in Mg-0.6%Zr and Mg-Ni high damping magnesium alloys
Download Pdf  View/Add Comment  Download reader
Received:September 29, 2015  Revised:November 23, 2015
DOI:
Key words: high damping  magnesium alloys  internal friction
Foundation item:国家自然科学基金项目(面上项目,重点项目,重大项目)
Author NameAffiliation
Wan Diqing and Wan Jincheng  
Hits: 7
Download times: 6
Abstract:
      A broad relaxation peak, which contributes to the high damping capacity around room temperature, has been obtained in all our investigated high damping magnesium alloys. This peak is a dislocation-related relaxation peak, which is probably caused by the interaction between dislocation and point defects (vacancy and solid atoms) during the dislocation movement on the basal plane actived by thermal. The grain boundary relaxation peak also has been observed in both Mg-Ni and Mg-0.6%Zr high damping alloys. However, it is necessary to point out that microstructure can affect the gain boundary relaxation. With Ni content increasing, the grain is refined and the grain boundary internal friction peak shifts to lower temperature. Compared with Mg-0.6%Zr alloy, the grain boundary internal friction peak shifts to higher temperature after adding a little yttrium(Y).
$(".lightbox").lightbox ({fitToScreen:!0,imageClickClose:! 1,fileLoadingImage:"http://p0.qhimg.com/t014f18305c97360131.gif",fileBottomNavClose Image:"http://p0.qhimg.com/t0155d6ba22d11cc3ea.png",overlayOpacity:.7,navbarOnTop:! 0})