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  • 1
    Electronic Resource
    Electronic Resource
    Microstructure and Dynamic Ultra-Micro Hardness of the As-Cast and Extruded Mg-Al-Ca-Sm Alloys (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 26-28 (Oct. 2007), p. 153-156 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The as-cast microstructure of Mg-5Al-3Ca-2Sm alloy consists of equiaxed α-Mg matrix,(Mg, Al)2Ca eutectic phase and Al-Sm rich intermetallic compounds. This eutectic phase of theextruded alloys was elongated to extrusion direction and size of this phase was finered compare tothat of as-cast alloys because of severe deformation during hot extrusion. After hot extrusion, theaverage grain size of Mg-5Al-3Ca and Mg-5Al-3Ca-2Sm alloys was 4.8 *m and 3.8 *m, respectively.In load-unload hardness test, penetration depth was decreased with added Sm and after extrusionprocedure because of grain size refining by addition Sm and large deformation. Hardness value of thealloys containing Sm was higher than that of Mg-5Al-3Ca alloy due to grain refining and formationAl-Sm rich intermetallic compound at gain boundary and α-Mg matrix. Maximum hardness valuewas obtained at the extruded Mg-5Al-3Ca-2Sm alloy at elevated temperatures
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.153.pdf
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Characterization of Mg-Al Sheet Clad Materials Fabricated by Hot Rolling (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 26-28 (Oct. 2007), p. 409-412 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: AZ31 Mg / 5083 Al clad sheet was fabricated by the hot rolling method and itsmechanical properties were investigated in this study. The tensile strength and yield strength of Mg-Al clad samples were slightly higher than that of AZ31 Mg sample, resulting in high strength 5083Al alloy. Also, in the case of the AZ31 Mg sample, tensile strength indicated different values to therolling directions. The thickness of interface layers between magnesium and aluminum materialsincreased with increasing rolling temperature. The thickness of interface layer was about 1.2 μmand 1.6 μm, respectively. The difference of thickness on the interface layer with variation of rollingtemperature was attributed to promote the diffusion between magnesium and aluminum materials.The Vickers hardness of Mg-Al interface layer was around 125 Hv. The interface layer composedof hard inter-metallic phases which may act a increment of Vickers hardness depending upon itsthickness
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.409.pdf
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Microstructure and Texture Evolution of Cross Rolled AZ31 Mg Sheet (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 41-42 (Apr. 2008), p. 435-438 
    Details
    ISSN: 1662-8985
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The aims of this study are to investigate the microstructure evolution of AZ31 Mg alloyswith normal rolling and cross rolling as the large strain hot rolling affects microstructure, textureand mechanical properties of AZ31 Mg alloys. In the microstructures of as-rolled both samples,twins are clearly apparent, small and recrystallized grains are visible along some grain boundaryand twinned regions. The Lankford values of large strain cross rolled sample obviously demonstratethe higher average r-value and lower planar anisotropy value. The press formability of cross rolledMg alloy might be improved due to control of texture and grain size by severe deformation
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.41-42.435.pdf
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    Paper (German National Licenses)
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