Roles of Nd and Mn in a new creep-resistant magnesium alloy
作者: Ning MoIngrid McCarrollQiyang TanAnna CeguerraJulie CairneyHajo DieringaYuanding HuangBin JiangFusheng PanMichael BerminghamMing-Xing Zhang
作者单位: 1School of Mechanical and Mining Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia
2Australia Centre for Microscopy and Microanalysis and School of Aerospace, Mechanical & Mechatronic Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
3MagIC-Magnesium Innovation Centre, Helmholtz-Zentrum Geesthacht, 21502, Germany
4College of Materials Science and Engineering, Chongqing University, Chongqing, 400030, China
刊名: Materials Science & Engineering A, 2020, Vol.779
来源数据库: Elsevier Journal
DOI: 10.1016/j.msea.2020.139152
关键词: Magnesium alloyCreep resistanceTransmission electron microscopyAtom probe tomography
英文摘要: Abstract(#br)Modification of the recently developed creep-resistant Mg-3Gd-2Ca (wt.%) magnesium alloy using Nd and Mn remarkably improved the creep resistance at both 180 °C and 210 °C . The modified Mg-2Gd-1Nd-2Ca-0.5Mn alloy after solid solution treatment exhibited outstanding creep resistance that is superior to the commercial creep-resistant Mg alloy, EV31, but contained less RE addition. The microstructural observations revealed that partial replacement of Gd with 1 wt% Nd did not enhance the effect of dynamic precipitates significantly. But further analysis by atom probe tomography verified the stronger co-segregation between Nd solute atoms and other solute atoms than that of Gd and Ca in the Mg solid solutions, leading to a higher solid solution strengthening effect on the creep...
全文获取路径: Elsevier  (合作)
影响因子:2.108 (2012)

  • magnesium 
  • creep 蠕变
  • alloy 合金
  • resistant 耐久的