منابع مشابه
Phase Separation kinetics in Fe-Cr-Al alloy
9 The α α phase separation kinetics in a commercial Fe-20 wt% Cr-6% Al oxide dispersion-strengthened PM 1
متن کاملDsc Study of Precipitation in an Al-mg-mn Alloy Microalloyed with Cu
Power compensation DSC has been employed to detect and analyse precipitation reactions in an Al1.3Mg-0.4Mn and an Al-1.3Mg-0.4Mn-0.07Cu alloy in which very small amounts of precipitate, less than 0.3 at%, are expected to form. Due to the very small heat effects, baseline instability and drift significantly interfere with the measurements. After repeated experiments and careful baseline correcti...
متن کاملPrecipitation of a new platelet phase during the quenching of an Al-Zn-Mg-Cu alloy.
A previously undescribed high aspect ratio strengthening platelet phase, herein named the Y-phase, has been identified in a commercial Al-Zn-Mg-Cu alloy. Differential scanning calorimetry indicates that this phase only precipitates at temperature and cooling rate of about 150-250 °C and 0.05-300 K/s, respectively. This precipitate is shown to be responsible for a noticeable improvement in mecha...
متن کاملModification of Primary Si Crystals and Fe-rich Intermetallics in LM28 Al Alloy Fabricated Through Thixoforming
In the present research, thixoforming route was carried out in order to enhance the microstructural features of LM28 piston alloy. Typical microstructure of this alloy was composed of coarse, polygonal primary silicon particles, eutectic matrix and intermetallic phases. Thermal analysis was carried out to study the solidification path of the base alloy and determine the major arrest temperature...
متن کاملThe Effect of Cu Additions on the Precipitation Kinetics in an Al-Mg-Si Alloy with Excess Si
The microstructural evolution during age hardening of a Cu-bearing Al-Mg-Si alloy has been investigated by the three-dimensional atom probe (3DAP) and transmission electron microscope (TEM) techniques, in order to clarify the effect of Cu on the initial age-hardening response. After 30 minutes of artificial aging at 175 8C, the alloy shows a significant increase in hardness. The TEM observation...
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ژورنال
عنوان ژورنال: Journal of Japan Institute of Light Metals
سال: 2003
ISSN: 0451-5994,1880-8018
DOI: 10.2464/jilm.53.8