種々な方法によるMn-Si-C鋼の残留オーステナイト体積率測定の比較
Comparison of the measurements of austenite volume fraction by various methods for Mn-Si-C steel
友田 陽*; 関戸 信彰*; 徐 平光 ; 川崎 卓郎; Harjo, S.; 田中 雅彦*; 篠原 武尚; Su, Y.; 谷山 明*
Tomota, Yo*; Sekido, Nobuaki*; Xu, P. G.; Kawasaki, Takuro; Harjo, S.; Tanaka, Masahiko*; Shinohara, Takenao; Su, Y.; Taniyama, Akira*
Various methods were employed to measure the austenite volume fraction in a 1.5Mn-1.5Si-0.2C steel. It has been confirmed that the volume fractions determined by transmission electron microscopy, scanning electron microscopy/electron back scatter diffraction, X-ray diffraction and neutron diffraction exhibit a general trend to become larger in this order, although the values obtained by X-ray and neutron diffraction are similar in the present steel because austenite is relatively stable. The austenite volume fractions determined by diffraction methods have been found to be affected by the measuring specimen direction, i.e., texture, even by applying the conventional correcting procedure. To avoid this influence, it is recommended to measure both of volume fraction and texture simultaneously using neutron diffraction. Although synchrotron X-ray shows higher angle resolution, its small incident beam size brings poor statistic reliability. The influence of texture cannot be avoided for transmission Bragg edge measurement, either, which must be overcome to realize 2D or 3D volume fraction mapping.
使用言語 : Japanese
掲載資料名 : 鉄と鋼
: 103
: 10
ページ数 : p.570 - 578
発行年月 : 2017/10
出版社名 : 日本鉄鋼協会
特許データ :
PDF :
論文URL :
キーワード : 体積率; オーステンナイト; 集合組織
使用施設 :
広報プレスリリース :
論文解説記事
(成果普及情報誌)
:
受委託・共同研究相手機関 :
 
登録番号 : AA20170034
抄録集掲載番号 : 45001255
論文投稿番号 : 19486
Accesses  (From Jun. 2, 2014)
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パーセンタイル:100
分野:Metallurgy & Metallurgical Engineering
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