Influence of Strain Aging on the Microstructure-Property of an X100 Pipeline Steel

Abstract:

Article Preview

The influence of strain aging on the microstructure-property characterization of an X100 pipeline steel was investigated by means of a thermal simulation technique, microscopic analysis method and mechanical properties testing. The experimental steel was prestrained in the tension at 6 pct and then was baked at 150oC, 200oC, 250oC and 300oC for 60 minutes, respectively. The results indicated that the strength and hardeness of test steel X100 increase and the plasticity and toughness decrease with the increasing of strain aging temperature, and it can get a higher ratio of yield to tensile and a lower strain-hardening coefficient which result in lower hardening capacity of X100 pipeline steel. There are two reasons for this strain aging phenomenon. One is the solute atoms of C, N in the α-Fe which Aggregated at the dislocation zones; the other is the compounds precipitation of C, N induced by the dislocations.

Info:

Periodical:

Edited by:

Hyungsun Kim, JianFeng Yang, Tohru Sekino, Masakazu Anpo and Soo Wohn Lee

Pages:

157-160

DOI:

10.4028/www.scientific.net/MSF.658.157

Citation:

X. Y. Zhang et al., "Influence of Strain Aging on the Microstructure-Property of an X100 Pipeline Steel", Materials Science Forum, Vol. 658, pp. 157-160, 2010

Online since:

July 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.