Affordable Access

Publisher Website

Phosphorus-induced hot ductility enhancement of 1Cr–0.5Mo low alloy steel

Authors
Journal
Materials Science and Engineering A
0921-5093
Publisher
Elsevier
Publication Date
Volume
574
Identifiers
DOI: 10.1016/j.msea.2013.02.072
Keywords
  • Steel
  • Hot Ductility
  • Recrystallization
  • Grain Boundaries
  • Segregation

Abstract

Abstract The effect of phosphorus on the hot ductility of 1Cr–0.5Mo low alloy steel is investigated over a temperature range of 700–1050°C using a Gleeble thermomechanical simulator. The steel samples undoped and doped with phosphorus are heated at 1300°C for 3min and then cooled at a rate of 5Ks−1 down to different test temperatures, followed by tensile deformation until fracture. The results show that the hot ductility of the steel, evaluated by the reduction in area, can be substantially enhanced by the addition of phosphorus, especially in the range 750–950°C. Nanohardness measurements and microscopy indicate that, in the austenite–ferrite regions, the hot ductility improvement is mainly caused by the phosphorus-induced solid solution hardening of ferrite layers formed along austenite grain boundaries, and over 900°C, by the phosphorus-promoted dynamic recrystallization of austenite.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Tin-induced hot ductility degradation and its supp...

on Materials Science and Engineer... Feb 10, 2014

Creep ductility of 1Cr1Mo1/4V low alloy forging an...

on Materials Science and Engineer... Jan 01, 2009

Enhanced hot ductility of a Cr–Mo low alloy steel...

on Materials Science and Engineer... Sep 08, 2014
More articles like this..