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Effect of Ag addition on the thermal stability and glass-forming ability of ZrasTiaoCu7.sBe27.5 bulk metallic glass
  • ISSN号:1674-1056
  • 期刊名称:《中国物理B:英文版》
  • 时间:0
  • 分类:TG139.8[金属学及工艺—合金;一般工业技术—材料科学与工程;金属学及工艺—金属学] TU241[建筑科学—建筑设计及理论]
  • 作者机构:[1]State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China, [2]College of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000, China
  • 相关基金:This work was supported by the National Natural Science Foundation of China (50731005, 50821001 and 51171163); National Basic Research Program of China (2010CB731600);Hebei Natural Science Founda- tion (E2010001176) ; the Doctoral Fund of Ministry of Education of China (20101333110004).
中文摘要:

热稳定性和 Zr35x Ti30Cu7.5Be27.5Ag x 的玻璃形成能力(GFA )(x = 010 ) 合金被 X 光检查衍射(XRD ) 学习,微分扫描热量测定(DSC ) 和超声的技术。我们发现 1 个 at.% Ag 罐头的增加更加提高在 Zr34Ti30Cu7.5Be27.5Ag1 合金在 Zr35Ti30Cu7.5Be27.5 合金从 15 公里由批评玻璃尺寸的增加显示了到 20 公里的 GFA。然而,与更多的 Ag 的增加 supercooled 液体区域(T x ) 和参数(定义为 T x/T g+T l )) 急速地从 155 K 和 0.436 ~ 76 K 减少了并且 0.363 分别地,在 GFA 导致减少。另外,有弹性的常数(比率砍模量到体积模量或泊松比率) 也被用作一个计量器在 Zr35x Ti30Cu7.5Be27.5Ag x 合金评估 GFA。

英文摘要:

The thermal stability and glass forming ability (GFA) of Zr35-xTi3oCu7.sBe27.sAgx (x = 0-10) alloys were studied by X-ray diffrac- tion (XRD), differential scanning calorimetry (DSC) and ultrasonic techniques. We found that the addition of 1 at.% Ag can con- siderably enhance the GFA as indicated by an increase in the critical glass dimension from 15 rnm in the Zr35Ti30CuT.sBe27.5 alloy to 20 mm in the Zr34Ti30Cu7.sBe27.sAgl alloy. However, with the addition of more Ag the supercooled liquid region (ATx) and y parameter (defined as Tx/(Tg+TO) drastically decreased from 155 K and 0.436 to 76 K and 0.363, respectively, resulting in a de- crease in the GFA. Additionally, the elastic constant (the ratio of shear modulus to bulk modulus or Poisson' s ratio) was also used as a gauge to evaluate the GFA in Zr35-xTi30Cu7.sBe27.sAgx alloys.

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期刊信息
  • 《中国物理B:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会和中国科学院物理研究所
  • 主编:欧阳钟灿
  • 地址:北京 中关村 中国科学院物理研究所内
  • 邮编:100080
  • 邮箱:
  • 电话:010-82649026 82649519
  • 国际标准刊号:ISSN:1674-1056
  • 国内统一刊号:ISSN:11-5639/O4
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  • 被引量:406