NON-EQUILIBRIUM SEGREGATION OF MANGANESE AND ALLOYING ELEMENTS IN Mn CRYOGENIC STEELS

Abstract

Abstract: The non-equilibrium segregation of manganese to austenite grain boundaries in Mn cryogenic steels is investigated. It includes the effect of manganese content, solution treatment temperature and cooling rate on the non-equilibrium segregation of manganese and condition of segregation formation. The segregation of alloying elements (Cr, Mo, B) and the effect of these elements on the manganese segregation is investigated. The non-equilibrium segregation of manganese is determined by both AES and TEM-EDS. And the micro-distribution of B atom is showed by PTA technique. The kinetic process of non-equilibrium segregation of manganese and alloying elements is discussed. Reasonable agreement is found between the prediction of the discussion and experimental results.

Key words: Alloying elements, Mn steel Cryogenic steels, Non-equilibrium segregation, Solution treatment, Dry sliding, Friction and wear tests, Laser processing, Surface texture

CLC Number:

TG144

Sun Dayong;Xue Kanshi;Xu Zuoren;Wang Bin;Zhang Jingjiang;Li Jin. NON-EQUILIBRIUM SEGREGATION OF MANGANESE AND ALLOYING ELEMENTS IN Mn CRYOGENIC STEELS[J]. , 1998, 34(4): 1-6，14.

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NON-EQUILIBRIUM SEGREGATION OF MANGANESE AND ALLOYING ELEMENTS IN Mn CRYOGENIC STEELS

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