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Investigations on Grain Boundary Segregation Energy of Phosphorus in 12Cr1MoV Steel Under Elastic Stress
Author(s) -
Zheng Lei,
Fu Yudong,
Lejček Pavel,
Song Shenhua,
Schmitz Guido,
Meng Ye
Publication year - 2016
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201500314
Subject(s) - materials science , grain boundary , thermodynamics , elastic energy , stress (linguistics) , gibbs free energy , thermal , consistency (knowledge bases) , metallurgy , microstructure , physics , mathematics , geometry , linguistics , philosophy
Grain boundary (GB) concentration of P in 12Cr1MoV steel after aging for 15 h under elastic stress of 30 MPa is found to be nearly equal to its initial thermal equilibrium level, which confirms that elastic stress affects thermal equilibrium segregation slightly. By the model and formulation between elastic stress and segregation Gibbs energy, the effect of elastic stress on GB segregation thermodynamics of P is calculated to be slight. The consistency between experiment and calculation gives direct evidence to the validity of the model and formulation.