Structural changes in the aluminum-lithium alloy 1460 upon high-temperature superplastic deformation

被引：0
|
作者：
Poida, AV
Brukhovetskii, VV
Kuznetsova, RI
Klepikov, VF
Voronov, DL
Lyubitskaya, TB
机构：
[1] Natl Acad Sci Ukraine, Sci & Tech Ctr Electrophys Treatment, UA-61002 Kharkov, Ukraine
[2] Kharkov State Polytech Univ, UA-61002 Kharkov, Ukraine
[3] Natl Acad Sci Ukraine, Sci & Tech Concern Inst Single Crystals, UA-61002 Kharkov, Ukraine
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2005年 / 99卷 / 02期
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D O I：
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中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Structural characteristics of a complex aluminum-lithium alloy 1460 deformed under superplastic conditions in the range of high homological temperatures have been studied. In the surface pores formed at the gage portion of specimens deformed superplastically at temperatures T >= 823 K, fiber structures parallel to the extension axis were observed. The morphology of these fiber formations indicates that they appear and develop as a result of viscous flow of a liquid phase produced upon partial melting of the alloy. Probable causes of this partial melting in the course of specimen heating to the test temperature are considered. The fractographs of specimens deformed superplastically at different temperatures have been studied.
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页码：217 / 222
页数：6
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