Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Effect of alloy treatment and coiling temperature on microstructure and bending performance of ultra-high strength strip steel

Tools
- Tools
+ Tools

Mandal, Abhisek, Karmakar, Anish, Chakrabarti, Debalay and Davis, Claire (2018) Effect of alloy treatment and coiling temperature on microstructure and bending performance of ultra-high strength strip steel. Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science . doi:10.1007/s11661-018-4946-z ISSN 1073-5623.

[img]
Preview
PDF
WRAP-alloy-treatment-coiling-temperature-microstructure-bending-strip-steel-Davis-2018.pdf - Accepted Version - Requires a PDF viewer.

Download (3713Kb) | Preview
Official URL: https://doi.org/10.1007/s11661-018-4946-z

Request Changes to record.

Abstract

Two different high strength B-containing microalloyed steel strips produced in industrial processing conditions, one treated with Ti and the other treated with Al, processed by controlled rolling, accelerated cooling and coiling in two different temperatures ranges [723 K to 733 K (450 °C to 460 °C)] and [633 K to 653 K (360 °C to 380 °C)] were subjected to bend testing. The Ti treated steel coiled at the higher temperature 733 K (460 °C) showed the best bending performance. The relatively softer (tensile strength of < 900 MPa) and homogeneous microstructure containing mostly granular bainite and upper bainite to ~300-400 μm depth below the surface, generated at the higher coiling temperature, is preferred for bendability. The lower temperature coiling resulted in the formation of a hard surface layer dominated by martensite which is undesired as the steel becomes prone to shear cracking and interphase separation due to strain-localization. The combined effect of beneficial texture components such as γ-fiber, {332} <113> and even {112} <131> in the sub-surface region as well as uniformity of through thickness texture of the rolled sheet improve the bendability. In the presence of crack initiators, like coarse and brittle TiN particles found in the Ti treated steel, a harder microstructure and the presence of Cube and Goss texture in the sub-surface layer, seen for the lower coiling temperature can cause local transgranular cleavage cracking. Finally the post-uniform elongation obtained from tensile testing and bendability follow a good correlation.

Item Type: Journal Article
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH): Steel, High strength -- Thermomechanical properties, Bainite, Martensite
Journal or Publication Title: Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science
Publisher: Springer US
ISSN: 1073-5623
Official Date: 15 October 2018
Dates:
DateEvent
15 October 2018Available
11 June 2018Submitted
DOI: 10.1007/s11661-018-4946-z
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): This is a post-peer-review, pre-copyedit version of an article published in Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science. The final authenticated version is available online at: https://doi.org/10.1007/s11661-018-4946-z.
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 22 October 2018
Date of first compliant Open Access: 15 October 2019
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
SGDRI 2015Indian Institute of Technology Kharagpurhttp://dx.doi.org/10.13039/501100008984

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us