Effects of C and Cr content on high-temperature microstructures of Fe-9Al-30Mn-xC-yCr alloys

May Show Chen, Hsin Chung Cheng, Chiung Fang Huang, Chih Yeh Chao, Keng Liang Ou, Chih Hua Yu

研究成果: 雜誌貢獻文章

23 引文 斯高帕斯(Scopus)

摘要

This investigation elucidated the effects of C and Cr content on the high-temperature microstructures of Fe-9Al-30Mn-xC-yCr alloys by means of optical microscopy and transmission electron microscopy. With increasing Cr content, the phase transition sequence within the α phase was found to be α + B2 → α + B2 + DO3 → α + DO3. And with increasing C content, a γ → (γ + κ) phase transition was observed within the γ phase. The κ phase carbides ((Fe,Mn)3AlCx) had an ordered L′12-type structure with lattice parameter a = 0.368 nm and were formed by a spinodal decomposition during quenching. The amounts of Cr7C3 increased with the C and Cr content. Moreover, the Al and Mn content played important roles in expanding the (α + γ) region. These features have not been previously reported in the Fe-Al-Mn-C-Cr alloy system.
原文英語
頁(從 - 到)206-211
頁數6
期刊Materials Characterization
61
發行號2
DOIs
出版狀態已發佈 - 二月 2010

ASJC Scopus subject areas

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

指紋 深入研究「Effects of C and Cr content on high-temperature microstructures of Fe-9Al-30Mn-xC-yCr alloys」主題。共同形成了獨特的指紋。

  • 引用此