J. Mater. Sci. Technol. ›› 1989, Vol. 5 ›› Issue (2): 113-118.

• • 上一篇    下一篇

Phase Equilibria in Zn-Al-Cu-Si System at 285℃

ZHU Yaohua Tongji Univeysity, Shanghai, China.   

  1. TongjiUniversity,Shanghai,China.
  • 收稿日期:1989-03-28 修回日期:1989-03-28 出版日期:1989-03-28 发布日期:2009-10-10

Phase Equilibria in Zn-Al-Cu-Si System at 285℃

ZHU Yaohua Tongji Univeysity, Shanghai, China.   

  • Received:1989-03-28 Revised:1989-03-28 Online:1989-03-28 Published:2009-10-10

RichHTML

1

PDF (PC)

1116

摘要： <正> As a part of the systematic investigationon phase relationships of Zn-Al based alloyscontaining Cu and/or Si, the equilibrium phasetransformations of the quaternary Zn-Al-Cu-Sisystem at 285℃were investigated by using X-raydiffracti on, scanning electron microscopy andelectron probe microanalysis techniques. A five-phase of (α+β+εT'+σ) and a four-phase of (β+ε+η+σ) were detected separatelycoexisting in the Zn-Al-Cu-Si system at 285℃.Then the 285℃isothermal section of Zn-Al-Cu-Sisystem (with 0.1% -Si content) was established,and an equilibrium reaction was determined at286℃as the following pattern, β+T'=α+ε

Abstract: As a part of the systematic investigation on phase relationships of Zn-Al based alloys containing Cu and/or Si, the equilibrium phase transformations of the quaternary Zn-Al-Cu-Si system at 285℃ were investigated by using X-ray diffracti on, scanning electron microscopy and electron probe microanalysis techniques. A five-phase of (α+β+εT'+σ) and a four- phase of (β+ε+η+σ) were detected separately coexisting in the Zn-Al-Cu-Si system at 285℃. Then the 285℃ isothermal section of Zn-Al-Cu-Si system (with 0.1% -Si content) was established, and an equilibrium reaction was determined at 286℃ as the following pattern, β+T'=α+ε

Key words: ZnAl based alloys, electron probe microanalysis, X-ray diffraction, phase diagram, phase transformation