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J. Cent. South Univ. Technol. (2007)04-0456-04 DOI: 10.1007/s11771-007-0089-x Modeling effects of constituents and dispersoids on tensile ductility of aluminum alloy SONG Min(宋 旼...) ____________________________________________________________________ Abstract: The modeling effects of constituents and dispersoids on the tensile ductility of aluminum alloy were studied. The results show that the tensile ductility decreases with the increase......
for dynamic recrystallization. The low density of Al3Zr dispersoids near grain boundaries can make contribution to strain-induced boundary migration. Key words: aluminum alloy; Zener-Hollomon parameter; dynamic recrystallization; strain-induced boundary migration; Al3Zr dispersoids 1 Introduction Dynamic recrystallization (DRX) often occurs in aluminum and aluminum alloys during hot deformation......
particles with larger size tend to precipitate at incoherent E phase dispersoids during slow quenching. After aging, obvious PFZ can be around the equilibrium phases, causing hardness to decrease distinctly and hardenability to reduce greatly. For other three alloys, Al3Zr dispersoids are coherent with the Al matrix, which results in less precipitation of smaller equilibrium phases and therefore leads......
treated alloy (H-alloy) with large equiaxed grains and about 43% for the extruded and solution heat treated alloy (E-alloy) with elongated grains and subgrains. Cr-containing dispersoids make... to a further 10% decrement in hardness due to slow quenching and therefore higher quench sensitivity. Key words: grain structure; Al-Zn-Mg-Cu-Cr alloy; dispersoids; quench sensitivity 1 Introduction Al-Zn......
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of homogeneously distributed Al3Sc dispersoids. The presence of Al3Sc dispersoids is more effective recrystallization inhibitors. Our work established the precipitation of homogeneously distributed Al3Sc dispersoids, which are coherent with the matrix, have the L12 structure. It was also established that the addition of Sc was effective in improving the recrystallization resistance.关键词:......
id="ChDivSummary" name="ChDivSummary">The nucleation and precipitation of Mn-containing dispersoids in an Al-Mg-Si-Mn alloy (6082) have been studied by optical microscopy,EPMA (electron probe microanalysis) and TEM (transmission electron microscopy).The influence of Mn-containing dispersoids on the recrystallization behavior was also investigated.The size and distribution of dispersoids were......
Science, University of Québec at Chicoutimi摘 要:The precipitation behavior of Mn-containing dispersoids in Al-Mg-Si 6082 alloys with different Mn contents(0, 0.5 and 1.0 wt%) during various heat treatments(300–500℃) was investigated. The effects of dispersoids on elevated-temperature strength and recrystallization resistance during hot-rolling and post......
, China) Abstract:Minor addition of Sc to aluminum results in the rapid precipitation of homogeneously distributed Al3Sc dispersoids. The presence of Al3Sc dispersoids is more effective recrystallization inhibitors. Our work established the precipitation of homogeneously distributed Al3Sc dispersoids, which are coherent with the matrix, have the L12 structure. It was also established......
-Yb合金；Al3(Zr,Yb)；再结晶；力学性能；断裂韧性 中图分类号:TG 146.2+1 文献标志码:A Forming and effect of dispersoids...) Abstract: The forming and effect of dispersoids in Al-Zn-Mg-Cu-Zr-Yb aluminum alloy were studied by OM, EDS, SEM, TEM and mechanical properties tests. The results show that the Al-Zn-Mg-Cu-Zr-Yb......
