A COMPARISON OF DISLOCATION MICROSTRUCTURES FORMED DURING SEVERE PLASTIC DEFORMATION OF AN Al-2.5 Mg ALLOY AT ROOM AND CRYOGENIC TEMPERATURES AND THEIR EFFECT ON ALLOY'S ROOM-TEMPERATURE STRENGTH

被引：0

作者：

Singh, Jung B. ^{[1
]}

Sarkar, A. ^{[1
]}

Sharma, G. ^{[1
]}

Chakravartty, J. K. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Mech Met Div, Bombay 400085, Maharashtra, India

来源：

TMS 2012 141ST ANNUAL MEETING & EXHIBITION - SUPPLEMENTAL PROCEEDINGS, VOL 2: MATERIALS PROPERTIES, CHARACTERIZATION, AND MODELING | 2012年

关键词：

ECAP microstructure; Cryogenic temperature; Dislocation substructure; Yield strength;

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：

This work reports a comparison of dislocation microstructures that formed in ultra-fine grains of a commercial Al-2.5 Mg alloy produced by equal channel angle pressing at room and cryogenic temperatures. Though the room-and cryogenic-temperatures pressing of the alloy produced ultra-fine grains of similar grain sizes for the same amount of equivalent strain, there was a significant difference in their respective room-temperature compression strengths. This observed difference in the room-temperature strengths corresponding to two microstructures has been attributed to differences in their dislocation substructures.

引用

页码：805 / 811

页数：7

共 49 条

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