ISOTHERMAL SECTION OF Mg-Zn-La SYSTEM IN Mg RICH CORNER AT 350℃

金属学报(英文版), 2008, 21(5): 329-335.

^1, , ^2, , ^3, , ^4, , ^5,

1.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

2.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

3.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

4.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

5.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

基金项目: 辽宁省自然科学基金(20052028) 国家自然科学基金(50471025)

ISOTHERMAL SECTION OF Mg-Zn-La SYSTEM IN Mg RICH CORNER AT 350℃

M.L.Huang ^1, , H.X.Li ^2, , H.Ding ^3, , Y.P.Ren ^4, , S.M.Hao ^5,

1.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

2.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

3.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

4.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

5.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China

Keywords： Mg-Zn-La system

Alloys of Mg-Zn-La system in Mg rich corner at 350℃ have been prepared in this study. Scanning electron microscopy (SEM), electron probe microanalysis with energy dispersive X-ray spectroscopy (EPMA-EDS), and X-ray diffraction (XRD) have been used to identify the phase equilibrium and the composition of each phase in the alloys. As a result, the isothermal section of Mg-Zn-La system in Mg rich corner at 350℃ has been determined. The result shows that, in addition to some binary phases, there exists a linear ternary compound called T-phase in Mg-Zn-La system at 350℃, in which the La content is about 8 at. pct±0.4 at. pct and the Zn content is 8 at. pct-48 at. pct. The T-phase has a C-centered orthorhombic crystal structure, and the lattice parameters are a=0.965-1.020 nm, b=1.121-1.142 nm, c=0.950-0.977 nm.

参考文献

[1]	T V Dobatkina;E V Muratova;E I Drozdova .[J].Russian Metallurgy,1987,1:205.
[2]	P Villars;A Prince;H Okamoto.Handbook of Ternary Alloy Phase Diagrams[M].CD-ROM,ASM International,USA,1997
[3]	A A Nayeb-Hashemi;J B Clark.Phase Diagrams of Binary Magnesium Alloy ASM[M].Metals Park,OH,USA,1996
[4]	M. GIOVANNINI;A. SACCONE;R. MARAZZA;R. FERRO .The Isothermal Section at 500℃ of the Y-La-Mg Ternary System[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1995(1):5-10.
[5]	C P Guo;Z M Du .[J].Journal of Alloys and Compounds,2004,385:109.
[6]	L Rolla;A IandeUi .[J].Ricerca Scientifica,1941,20:1216.
[7]	J B Clark;L Zabdyr;Z Moser.Phase Diagrams of Binary Magnesium Alloys[M].ASM International,Metals Park,OH,USA,1988
[8]	R Agarwal;S G Fries;H L Lukas;G Petzow G Petzow,F Sommer,T G Chart and G Effenberg .[J].Z MetaUkd,1992,839:216.
[9]	T B Massalski;H Okamoto;P R Subramanian;L Kacprzak.Binary Alloy Phase Diagrams[M].CD-ROM,ASM International,USA,1996
[10]	L Y Wei .[J].Journal of Materials Science,1997,32:3335.
[11]	C J Rossouw;C J Bettles;T J Davis;C T Forwood,P R Miller and K Venkatesan .[J].Acta Crystallographica,2001,51A:321.
[12]	L Y Wei;G L Dunlop;H Westengen .[J].Metallurgical and Materials Transactions,1994,26A:1947.
[13]	J B Clark;F N Rhines .[J].Journal of Metals,1957,209:425.

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ISOTHERMAL SECTION OF Mg-Zn-La SYSTEM IN Mg RICH CORNER AT 350℃

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