Effects of the substitution of gallium with boron on the physical and mechanical properties of Ni–Mn–Ga shape memory alloys

Yildirim Aydogdu, Ali Sadi Turabi, Mediha Kok, Ayse Aydogdu, Hirobumi Tobe, Haluk Ersin Karaca

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The effects of the substitution of gallium with boron on the physical, mechanical and magnetic shape memory properties of Ni51Mn28.5Ga20.5−xBx (at.%) (x = 0, 1, 2, 3) polycrystalline alloys are investigated. It has been found that transformation temperatures are decreasing while hardness is increasing with boron addition. B-doping of NiMnGa alloys results in the formation of a second phase that increases its ductility and strength in compression. Moreover, saturation magnetization of austenite is decreasing, while Curie temperature of austenite is increasing with B-doping.

Original languageEnglish
Pages (from-to)2073-2078
Number of pages6
JournalApplied Physics A: Materials Science and Processing
Volume117
Issue number4
DOIs
StatePublished - Nov 18 2014

Bibliographical note

Publisher Copyright:
© 2014, Springer-Verlag Berlin Heidelberg.

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science

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