MODULATED STRUCTURES AND ORDERING STRUCTURES IN ALLOYING AUSTENITIC MANGANESE STEEL

Acta Metallurgica Sinica (English Letters) ›› 2001, Vol. 14 ›› Issue (2): 148-152 .

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MODULATED STRUCTURES AND ORDERING STRUCTURES IN ALLOYING AUSTENITIC MANGANESE STEEL

L. He

Department of Metallurgical Engineering, Guizhou University of Technology, Guiyang 550003, China;Institute of Material Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Received:2000-12-26 Revised:1900-01-01 Online:2001-04-25 Published:2009-10-10
Contact: L. He

Abstract

Abstract: The microstructure of Fe-10Mn-2Cr-1.5C alloy has been investigated with transmission electron microscopy and X-ray diffractometer. The superlattice diffraction spots and satellite reflection pattrens have been observed in the present alloy, which means the appearence of the ordering structure and modulated structure in the alloy. It is also proved by X-ray diffraction analysis that the austenite in the alloy is more stable than that in traditional austenitic manganese steel. On the basis of this investigation,it is suggested that the C-Mn ordering clusters exist in austenitic manganese steel and the chromium can strengthen this effect by linking the weaker C-Mn couples together,which may play an important role in work hardening of austenitic manganese steel.

Key words: austenitic manganese steel, modulated structure, ordering structure, dynamic strain aging

L. He. MODULATED STRUCTURES AND ORDERING STRUCTURES IN ALLOYING AUSTENITIC MANGANESE STEEL[J]. Acta Metallurgica Sinica (English Letters), 2001, 14(2): 148-152 .

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MODULATED STRUCTURES AND ORDERING STRUCTURES IN ALLOYING AUSTENITIC MANGANESE STEEL

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