Effect of boron on phosphorus-induced temper embrittlement

Combined equilibrium and non-equilibrium grain boundary segregation of solute atoms in dilute ternary alloys is modelled through consideration of site competition between two solutes. Model predictions are made for a low-alloy steel containing boron. The predicted results indicate that the kinetics...

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Bibliographic Details
Published in:Journal of materials science 1999-11, Vol.34 (22), p.5549-5556
Main Authors: SONG, S.-H, FAULKNER, R. G, FLEWITT, P. E. J
Format: Article
Language:English
Subjects:
Applied sciences
Boron
Boron steels
Competition
Embrittlement
Exact sciences and technology
Fractures
Grain Boundary Segregation
Low alloy steels
Materials science
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Phosphorus
Predictions
Ternary alloys
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Summary:Combined equilibrium and non-equilibrium grain boundary segregation of solute atoms in dilute ternary alloys is modelled through consideration of site competition between two solutes. Model predictions are made for a low-alloy steel containing boron. The predicted results indicate that the kinetics of phosphorus segregation are dramatically facilitated by quenched-in vacancies, and the magnitude of the segregation, however, is substantially suppressed by the competition of boron with phosphorus for segregation sites, and in turn the phosphorus-induced embrittlement may be alleviated.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1004776931616