Back Stress Work Hardening Confirmed by Bauschinger Effect in a TRIP Steel Using Bending Tests

Hiroyuki Kato; Richard Moat; Tsutomu Mori; Kazuaki Sasaki; Philip Withers

doi:10.2355/isijinternational.54.1715

Back Stress Work Hardening Confirmed by Bauschinger Effect in a TRIP Steel Using Bending Tests

Hiroyuki Kato, Richard Moat, Tsutomu Mori, Kazuaki Sasaki, Philip Withers

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

Abstract

Martensite formed in TRIP steels causes large work hardening. The expectation that this is due to the back stresses induced into the ferrite by the hard martensite was examined by the Bauschinger effect after room temperature tensile straining of a TRIP steel into which the martensite had been introduced by prior straining at -50 degrees C. Bending tests were employed to detect the Bauschinger effect. The tests showed that the compressive flow stress became much smaller than the tensile flow stress and confirmed the expectation.

Original language	English
Pages (from-to)	1715-1718
Number of pages	4
Journal	ISIJ international
Volume	54
Issue number	7
DOIs	https://doi.org/10.2355/isijinternational.54.1715
Publication status	Published - 2014

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abstract = "Martensite formed in TRIP steels causes large work hardening. The expectation that this is due to the back stresses induced into the ferrite by the hard martensite was examined by the Bauschinger effect after room temperature tensile straining of a TRIP steel into which the martensite had been introduced by prior straining at -50 degrees C. Bending tests were employed to detect the Bauschinger effect. The tests showed that the compressive flow stress became much smaller than the tensile flow stress and confirmed the expectation.",

author = "Hiroyuki Kato and Richard Moat and Tsutomu Mori and Kazuaki Sasaki and Philip Withers",

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AU - Kato, Hiroyuki

AU - Moat, Richard

AU - Mori, Tsutomu

AU - Sasaki, Kazuaki

AU - Withers, Philip

N1 - Times Cited: 0

PY - 2014

Y1 - 2014

N2 - Martensite formed in TRIP steels causes large work hardening. The expectation that this is due to the back stresses induced into the ferrite by the hard martensite was examined by the Bauschinger effect after room temperature tensile straining of a TRIP steel into which the martensite had been introduced by prior straining at -50 degrees C. Bending tests were employed to detect the Bauschinger effect. The tests showed that the compressive flow stress became much smaller than the tensile flow stress and confirmed the expectation.

AB - Martensite formed in TRIP steels causes large work hardening. The expectation that this is due to the back stresses induced into the ferrite by the hard martensite was examined by the Bauschinger effect after room temperature tensile straining of a TRIP steel into which the martensite had been introduced by prior straining at -50 degrees C. Bending tests were employed to detect the Bauschinger effect. The tests showed that the compressive flow stress became much smaller than the tensile flow stress and confirmed the expectation.

U2 - 10.2355/isijinternational.54.1715

DO - 10.2355/isijinternational.54.1715

M3 - Article

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VL - 54

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JO - ISIJ international

JF - ISIJ international

IS - 7

ER -

Back Stress Work Hardening Confirmed by Bauschinger Effect in a TRIP Steel Using Bending Tests

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