Influence of heat treatment on the microstructure and magnetic properties of MnSnCoN alloys

Keita Shinaji, Tsuyoshi Mase, Keita Isogai, Masashi Matsuura, Nobuki Tezuka, Satoshi Sugimoto

研究成果: Article査読

2 被引用数 (Scopus)

抄録

This paper describes the influence of heat treatment on the microstructure and magnetic properties of MnSnCoN alloys. After homogenization at 950°C for 20 h in Ar, Mn82.5Sn10CO7.5 alloys were annealed at 900°C for 120 h in N2 and quenched to room temperature (first-annealing). The alloys were subsequently annealed at 400700° C for 5 h in N2 and quenched to room temperature (second-annealing). The coercivity of the alloys changed drastically by the second annealing. The samples subjected to second annealing at 500°C showed maximum coercivity of 1270kAm-1 and exhibited a fine two-phase microstructure. Wavelength Dispersive X-ray Spectrometer (WDS) and X-ray Diffraction (XRD) analyses revealed that the fine two-phase microstructure consists of β-Mn and perovskite-type (Mn4N-like) phases, as well as that the two phases emerged from the A phase during the second-annealing at 500°C.

本文言語English
ページ(範囲)2007-2010
ページ数4
ジャーナルMaterials Transactions
54
10
DOI
出版ステータスPublished - 2013 10 8

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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