Loss of High Angle Boundary Area During Annealing a Cryo-SPD Processed Al-Alloy with a Nano-Scale Lamellar Grain Structure

被引：1

作者：

Huang, Y. ^{[1
]}

Zahid, G. H. ^{[2
]}

Prangnell, P. B. ^{[1
]}

机构：

[1] Univ Manchester, Manchester Mat Sci Ctr, Grosvenor St, Manchester M17HS, Lancs, England

[2] PINSTECH, NMD, Islamabad, Pakistan

来源：

RECRYSTALLIZATION AND GRAIN GROWTH IV | 2012年 / 715-716卷

基金：

英国工程与自然科学研究理事会;

关键词：

Severe plastic deformation; SPD; nanocrystalline; cryogenic deformation; grain growth; grain coarsening; continuous recrystallisation; texture clustering; CONTINUOUS RECRYSTALLIZATION; SEVERE DEFORMATION; ALUMINUM-ALLOYS; GROWTH; EVOLUTION; MICROSTRUCTURE; METALS; SIZE;

D O I：

10.4028/www.scientific.net/MSF.715-716.219

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The grain structure and texture evolution during annealing an Al-0.13%Mg submicron grained alloy, deformed by plane strain compression (PSC) at cryogenic temperatures, has been investigated. On annealing the grain structure coarsened and transformed from lamellar to equiaxed. But, remarkably, the fraction of low angle boundaries (LABs) increased, from less than similar to 25% to similar to 50% above 300 degrees C, leading to instability and discontinuous coarsening at higher temperatures. The surprisingly large increase in LAB fraction on annealing is shown to be related to orientation impingement originating from the strong texture present after PSC in liquid nitrogen.

引用

页码：219 / +

页数：2

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