Direct measurement of carbon enrichment in the incomplete bainite transformation in Mo added low carbon steels

Y. Xia, G. Miyamoto, Z. G. Yang, C. Zhang, T. Furuhara

研究成果: Article査読

51 被引用数 (Scopus)

抄録

The overall kinetics and carbon enrichment in austenite during the incomplete isothermal bainite transformation in Fe-0.1C-1.5Mn-(0, 0.03, 0.3, 0.5, 1)Mo (mass%) alloys were investigated with quantitative metallography and Electron Probe Microanalysis in the transformation temperature range of 773-873 K. The incomplete transformation appears at 823-873 K when Mo addition exceeds 0.3 mass%; at 773 K substantial carbide precipitation accompanies bainite transformation and no transformation stasis is observed. Transformed fractions in the stasis stage are hardly affected by prior austenite grain size. Carbon concentrations in austenite in the stasis stage are lower than T0 line and decrease with the increase of Mo addition and temperature. T0′ limit, solute drag and WBs limit theories are used to examine the experimentally measured carbon concentration limits in austenite, and their respective flaws are pointed out.

本文言語English
ページ(範囲)10-18
ページ数9
ジャーナルActa Materialia
91
DOI
出版ステータスPublished - 2015 6 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • セラミックおよび複合材料
  • ポリマーおよびプラスチック
  • 金属および合金

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