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The influence of addition of the rare earth elements on the structure and hardness of AlZn12Mg3.5Cu2.5 alloy

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Aluminium alloys are characterized by a number of advantageous properties, which include: low density, high relative strength, high electrical and thermal conductivity, ease of machining and good dumping features. Particular interesting are high-strength aluminium alloys of zinc, magnesium and copper. These alloys are used mainly in aircraft, building andstructure, electrical, electrical power and automotive industry. A significant problem associated with the use of high-strength aluminium-zinc alloys is their insufficient resistance to corrosion. Improvement of corrosion resistance can be obtained by application of alloy micro-additives. The article shows results of examinations related to influence of rare earth additive on the structure and hardness of AlZn12Mg3.5Cu2.5 alloy. The scope of examination included: structure testing using scanning microscope, X-ray microanalysis, hardness test. Examinations have shown higher hardness of samples with rare earth additives. Was found, that rare earth addition influences on more fine-grained structure of the AlZn12Mg3.5Cu2.5 alloy.

Original languageEnglish
Title of host publicationTechnologies and Properties of Modern Utility Materials XXII
EditorsJacek Mendala, Paweł Gradoń
PublisherTrans Tech Publications Ltd.
Pages39-42
Number of pages4
ISBN (Electronic)9783038353454
DOIs
Publication statusPublished - 2015

Publication series

NameSolid State Phenomena
Volume226
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Keywords

  • Al-Zn-Mg-Cu alloys
  • Microadditives
  • REE
  • Structure

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics

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