Annealing behavior of an ultrafine-grained Fe-Ni-Mn steel during isothermal aging

S. Hossein Nedjad, M. Nili Ahmadabadi, Tadashi Furuhara

研究成果: Article査読

4 被引用数 (Scopus)

抄録

An ultrafine-grained maraging steel was fabricated by cold rolling and aging of iron-nickel-manganese lath martensite. Transmission electron microscopy was used to study precipitation behavior at grain boundaries during isothermal aging at 753 K. Relatively coarse precipitates were found at triple junctions of grain boundaries after aging for 0.36 ks. During further aging, precipitates coarsen at triple junctions at the expense of fine precipitates embedded at ultrafine grains. Mass-conservative dissolution of matrix precipitates occurs homogeneously as a result of which the precipitate-free zone around coarse particulates is eliminated. The phenomena of exclusive precipitation at grain boundary triple junctions and homogenous dissolution of matrix precipitates are attributed to the reduced length scale in the ultrafine-grained microstructure.

本文言語English
ページ(範囲)156-159
ページ数4
ジャーナルMaterials Science and Engineering A
503
1-2
DOI
出版ステータスPublished - 2009 3 15

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「Annealing behavior of an ultrafine-grained Fe-Ni-Mn steel during isothermal aging」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル