The Library
In-situ characterisation of austenite/ferrite transformation kinetics and modelling of interphase precipitation inter-sheet spacing in V microalloyed HSLA steels
Tools
Clark, Samuel J., Lan, Yongjun, Janik, Vit, Rijkenberg, Arjan and Sridhar, Seetharaman (2017) In-situ characterisation of austenite/ferrite transformation kinetics and modelling of interphase precipitation inter-sheet spacing in V microalloyed HSLA steels. In: THERMEC 2016, Graz, Austria, 29 May 2016 - 03 Jun 2016. Published in: Materials Science Forum, 879 pp. 356-362. ISSN 1662-9760.
PDF
2016 Thermec_Paper Sam.pdf - Accepted Version Embargoed item. Restricted access to Repository staff only - Requires a PDF viewer. Download (285Kb) |
Official URL: http://doi.org/10.4028/www.scientific.net/MSF.879....
Abstract
A new generation of low-carbon microalloyed High Strength Low Alloy (HSLA) steels has been developed to utilize a combination of single-phase ferritic microstructures and optimized interphase precipitation to provide high level strength and exceptional formability. The interphase precipitation reaction is a transient process lending itself strongly to take advantage of in-situ characterization techniques. The austenite/ferrite interface kinetics during isothermal transformation at 1003 K is measured using HT-CSLM, the pre-exponential effective mobility constant was found to be mobility 0.822 (m J)/(mole s). The V interphase precipitation is characterised using TEM at isothermal transformation temperatures of 923 and 973 K as having inter-sheet spacing of 22±7 and 32±9 nm respectively. Interphase precipitation inter-sheet-spacing is simulated using a revised Quasi-Ledge model and qualitatively predicts the observed trends observed for inter-sheet spacing. The results of in-situ characterisation and modelling suggest that it is possible to optimize the strengthening potential of the precipitation processes by controlling the thermal processing of microalloyed HSLA.
Item Type: | Conference Item (Paper) | ||||||
---|---|---|---|---|---|---|---|
Subjects: | T Technology > TN Mining engineering. Metallurgy | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
Journal or Publication Title: | Materials Science Forum | ||||||
Publisher: | Trans Tech Publications | ||||||
ISSN: | 1662-9760 | ||||||
Official Date: | 2017 | ||||||
Dates: |
|
||||||
Volume: | 879 | ||||||
Page Range: | pp. 356-362 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Date of first compliant deposit: | 11 November 2016 | ||||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||||
Grant number: | EP/L018632/1 | ||||||
RIOXX Funder/Project Grant: |
|
||||||
Conference Paper Type: | Paper | ||||||
Title of Event: | THERMEC 2016 | ||||||
Type of Event: | Conference | ||||||
Location of Event: | Graz, Austria | ||||||
Date(s) of Event: | 29 May 2016 - 03 Jun 2016 | ||||||
Related URLs: |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |