【摘 要】
：
The precipitation behaviors of Zr-rich phase in binary Al-0.5Zr and ternary Al-3Si-0.5Zr alloys were investigated by high resolution transmission electron microscopy and atom probe.After the alloys we
【机 构】
：
Australian Centre for Microscopy & Microanalysis, The University of Sydney, Australia;Key Laboratory
【出 处】
：
15th International Conference on Aluminium Alloys(ICAA15)(第十
论文部分内容阅读
The precipitation behaviors of Zr-rich phase in binary Al-0.5Zr and ternary Al-3Si-0.5Zr alloys were investigated by high resolution transmission electron microscopy and atom probe.After the alloys were aged at 525 ℃ for 24 h, the precipitates in Al-0.5Zr alloy are identified as L12-ZrAl3, performing a coherent relationship with the Al matrix.While in Al-3Si-0.5Zr alloy, the precipitates are Si-containing D023-Zr(Al,Si)3, which has an approximate 90℃ reversed cube-on-cube orientation relationship with Al.It is regarded that Si accelerates the precipitation of D023-Zr (Al,Si)3.
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