Amorphization of Interstitial Elements Containing Iron Materials by Mechanical Alloying

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概要

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• In mechanical alloying (MA) of Fe-C and Fe-N materials with additive elements A such as Nb, Ti, Cr, and Co in an Ar atmosphere using a ball mill, the amorphization of MA powders is most crucially dependent on the interaction parameter W_<AX> (X = C or N) among the several properties of additives A, including their melting points and atomic sizes, and the milling energy supplied to MA materials. The parameter WAX represents the difference between the bonding energies of the atomic A-X pair (U_<AX>) and the Fe-X pair (U_<Fex>) in the Fe-A-X solution, i.e., W_<AX> = U_< AX > - U_<FeX>. Additives such as Cr and Nb with negative W_<AX> values markedly promote the amorphization of MA materials, in contrast to Co or Ni which have positive W_<AX> values. When V-VI group elements with negative and moderate W_<AX> values, such as Nb, Ta, and Cr, are employed as the ternary additives, the amorphization of Fe-C and Fe-N materials is readily attained.

• 社団法人応用物理学会の論文
• 2002-08-15

著者

• Ogawa Hidenori

  College Of Industrial Technology

• MIURA Harumatsu

  College of Industrial Technology

関連論文

• Amorphization of Interstitial Elements Containing Iron Materials by Mechanical Alloying
• Composition Dependence of Microstructure of Mechanically Alloyed Powders and Their Compacts of High Nitrogen Cr-Mn Steels
• Preparation of Amorphous High Nitrogen Iron Alloys with Ternary Additions by Mechanical Alloying
• Preparation of Nanocrystalline High-Nitrogen Stainless Steel Powders by Mechanical Alloying and Their Hot Compaction

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