Precipitation hardening of Al-0.5%Zr alloy.
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概要
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The deformation induced dislocation structures in the chill cast and aged Al-Zr alloys were examined by transmission electron microscopy at various stages of aging. The Al-Zr alloys hardened by precipitation of the metastable β'-Al3Zr phase with the L12 ordered structure. In contrast to the Al-Li alloys containing coherent δ'-Al3Li particles which have the same L12 ordered structure as the β' phase, dislocations moved as single dislocations and bypassed the β' particles at any aging stage of the Al-Zr alloy. This behavior of dislocations in the Al-Zr alloy was explained in terms of the large value of antiphase boundary energy and the small volume fraction of the β' precipitates.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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