Benefits of Intercritical Annealing in Quenching and Partitioning Steel

X. Wang; L. Liu; R. D. Liu; M. X. Huang

doi:10.1007/s11661-018-4559-6

Benefits of Intercritical Annealing in Quenching and Partitioning Steel

X. Wang
, L. Liu
, R. D. Liu
, M. X. Huang^*

^*Corresponding author for this work

China Iron and Steel Research Institute Group
The University of Hong Kong

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

Compared to the quenching and partitioning (Q&P) steel produced by full austenization annealing, the Q&P steel produced by the intercritical annealing shows a similar ultimate tensile stress but a larger tensile ductility. This property is attributable to the higher volume fraction and the better mechanical stability of the retained austenite after the intercritical annealing. Moreover, intercritical annealing produces more ferrite and fewer martensite phases in the microstructure, making an additional contribution to a higher work hardening rate and therefore a better tensile ductility.

Original language	English
Pages (from-to)	1460-1464
Number of pages	5
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	49
Issue number	5
DOIs	https://doi.org/10.1007/s11661-018-4559-6
State	Published - 1 May 2018
Externally published	Yes

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title = "Benefits of Intercritical Annealing in Quenching and Partitioning Steel",

abstract = "Compared to the quenching and partitioning (Q\&P) steel produced by full austenization annealing, the Q\&P steel produced by the intercritical annealing shows a similar ultimate tensile stress but a larger tensile ductility. This property is attributable to the higher volume fraction and the better mechanical stability of the retained austenite after the intercritical annealing. Moreover, intercritical annealing produces more ferrite and fewer martensite phases in the microstructure, making an additional contribution to a higher work hardening rate and therefore a better tensile ductility.",

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AU - Liu, L.

AU - Liu, R. D.

AU - Huang, M. X.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - Compared to the quenching and partitioning (Q&P) steel produced by full austenization annealing, the Q&P steel produced by the intercritical annealing shows a similar ultimate tensile stress but a larger tensile ductility. This property is attributable to the higher volume fraction and the better mechanical stability of the retained austenite after the intercritical annealing. Moreover, intercritical annealing produces more ferrite and fewer martensite phases in the microstructure, making an additional contribution to a higher work hardening rate and therefore a better tensile ductility.

AB - Compared to the quenching and partitioning (Q&P) steel produced by full austenization annealing, the Q&P steel produced by the intercritical annealing shows a similar ultimate tensile stress but a larger tensile ductility. This property is attributable to the higher volume fraction and the better mechanical stability of the retained austenite after the intercritical annealing. Moreover, intercritical annealing produces more ferrite and fewer martensite phases in the microstructure, making an additional contribution to a higher work hardening rate and therefore a better tensile ductility.

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Benefits of Intercritical Annealing in Quenching and Partitioning Steel

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