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

页码：295 / +

页数：2

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