欢迎登录材料期刊网

材料期刊网

高级检索

  • 论文(1265)
  • 图书()
  • 专利()
  • 新闻()

ACTIVITY OF In IN LIQUID In-Bi-Tl ALLOYS

ZHENG Minhui Univeristy of Science and Technology Beijing , Beijing , ChinaKOZUKA Zensaku Faculty of Engineering , Osaka University , Japan

金属学报(英文版)

The activities of In in two pseudo-binary systems of fixed molar fraction ratio N_(Bi)/N_(Ti) have been measured by means of EMF method using zirconia solid electrolyte gal- vanic cells over the temperature range of 973—1223 K.The excess free energies were deter- mined based on the experimental data.The experimentally determined thermodynamic prop- erties of the ternary alloys agree well with the values caleulated from the author's equations using related binary data.The excess free energies are negative in almost all compositions ex- cept those near the In-Tl side and become negatively larger as the compositions approach the Bi-Tl side.

关键词: In-Bi-Tl alloy , null , null , null

CORRELATION BETWEEN STRESS COMPONENTS AND STRESS CORROSION CRACKS IN BRASS Lecturer,Department of Materials Physics,University of Science and Technology Beijing,Beijing 100083,China

QIAO Lijie LIU Rui XIAO Jimei University of Science and Technology Beijing , Beijing , China

金属学报(英文版)

The effects of stress components on nucleation sites and propagation directions of stress cor- rosion cracks in brass were investigated with specimens under mode Ⅱ and mode Ⅲ loadings. The results indicated that under mode Ⅱ loading,stress corrosion cracks nucleated on the site with maximum normal stress component and propagated along the plane perpendieular to the maximum normal stress,under mode Ⅲ loading,the stress corrosion crack was not evident on the 45°plane due to the general corrosion in aqueous solution with high NH_4OH concentra- tion,while stress corroded in aqueous solution with low NH_4OH concentration, numerous cracks with spacings of 10—150μm were found on the 45°plane with maximum normal stress and no stress corrosion cracks was observed on the plane with maximum shear stress.

关键词: stress corrosion cracking , null , null , null

  • 首页
  • 上一页
  • 1
  • 2
  • 3
  • 4
  • 5
  • 下一页
  • 末页
  • 共127页
  • 跳转 Go

出版年份

刊物分类

相关作者

相关热词