Deformation dissolution of aluminides of transition metals under severe plastic deformation

被引：0
|
作者：
Brodova, I. G. [1 ]
Shabashov, V. A. [1 ]
Shirinkina, I. G. [1 ]
Lennikova, I. P. [1 ]
机构：
[1] RAS, Inst Met Phys, Ural Div, 18 S Kovalevskaya St, Ekaterinburg 620041, Russia
来源：
ULTRAFINE GRAINED MATERIALS IV | 2006年
基金：
俄罗斯基础研究基金会;
关键词：
rapid quenching; aluminum alloys; transition metals; aluminides; high pressure torsion;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A special interest for studies has a deformation dissolution of stable and metastable aluminides of twice phase Al alloys with transition metals (Zr, Fe, Cr) by severe plastic deformation (high pressure torsion). It was determined a kinetic of deformation dissolution of the Al7Cr and Al13Fe4 stable alurninides and the Al3Zr and Al6Fe metastable intermetallic-compound crystals. It was established that metastable crystals of Al3Zr fully dissolved in Al matrix and super saturated Al-base solid solution with ultra microcrystalline structure was formed in the Al-Zr alloy. Another aluminides destroyed and only partly dissolved in Al matrix. After HPT these sizes decreased up to 10 - 20 nm and they regular distributed in ultra microcrystalline Al matrix. The hardness of these materials very high -2000-3000 GPa. According the Mossbauer spectroscopy data, RPT results to changes in the phase composition of structure constituents in the Al-Fe alloys.
引用
收藏
页码：295 / +
页数：2
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