Effect of alloying on superplasticity of two-phase brasses

Superplasticity characteristics of two-component and multicomponent brasses in the temperature range 525–600°C have been investigated at tension tests under the conditions of stepwise enhancement in the strain rate and when maintaining a constant strain rate of 1 × 10 –3 s –1 . The effective energy...

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Bibliographic Details
Published inPhysics of metals and metallography Vol. 117; no. 7; pp. 742 - 748
Main Authors Yakovtseva, O. A., Mikhailovskaya, A. V., Kotov, A. D., Portnoi, V. K.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.07.2016
Springer
Springer Nature B.V
Subjects
Activation energy
ALLOYING
Alloys
Analysis
Brasses
Chemistry and Materials Science
DEFORMATION
FORMING
Materials Science
Metallic Materials
PHASES
Plastic deformation
PLASTICITY
Porosity
Specialty metals industry
Strain rate
Strength and Plasticity
Superplastic deformation
Superplastic forming
SUPERPLASTICITY
Tensile tests
activation energy
brass
superplasticity characteristics
porosity
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Summary:Superplasticity characteristics of two-component and multicomponent brasses in the temperature range 525–600°C have been investigated at tension tests under the conditions of stepwise enhancement in the strain rate and when maintaining a constant strain rate of 1 × 10 –3 s –1 . The effective energy for activating superplastic deformation has been determined. It has been shown that brass alloyed with aluminum, tin, and iron exhibits large elongations and less porosity due to superplastic deformation. Changes in the granular structure and sample surfaces have been analyzed after deformation, and signs of grain-boundary sliding and intragrain deformation have been revealed in the alloys studied.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X16070188