NDLI: Characteristics of steels in annealing combined with hot-rolling preheating

Content Provider	Springer Nature Link
Author	Khlestov, V. M. McQueen, H. J. Kopleva, E. V. Cingara, G. A.
Copyright Year	2005
Abstract	The rates of transformation and the morphologies after full annealing and industrial rolling without reheating were determined to establish the degree of similarity. Steels with 0.1–1% C and almost nil to 17% alloying addition (M2 steel) were isothermally transformed in a dilatometer after various thermomechanical processing (TMP) sequences. For annealing, the heat treatment was performed at about 880 °C, depending on C content, and then cooled for transfer to the dilatometer. In some cases, specimens were rolled to 50% reduction in 3 passes before cooling. The rolling schedule was simulated by preheating to 1150 °C followed by slow cooling to 950 °C for finish rolling as above before transfer to the dilatometer. Some specimens were directly cooled to transformation. The high preheat thoroughly homogenized the austenite (except for the M2 steel) and slowed the transformation by a factor >10 as the alloying content rose. In all cases, the hot rolling accelerated the transformation. After the high preheat the rate and microstructure were restored to those of standard annealing for hypo-eutectoid and M2 steel.
Starting Page	179
Ending Page	187
Page Count	9
File Format	PDF
ISSN	10599495
Journal	Journal of Materials Engineering and Performance
Volume Number	14
Issue Number	2
e-ISSN	15441024
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	annealing hardness microstructure phase transformations steels thermomechanical processing tool steels Characterization and Evaluation of Materials Materials Science Tribology, Corrosion and Coatings Quality Control, Reliability, Safety and Risk Engineering Design
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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