The High Nb Content Microalloying Approach for Developing High Performance Structural Steel

Abstract:

Article Preview

Two kinds of ULCB steel were designed with different Nb content. The yield strength of the steel which was made by adding 0.09%Nb, TMCP (Thermo Mechanical Controlling Processing) and tempering can achieve more than 900MPa. As compared with 0.05%Nb steel, adding 0.09%Nb can refine the austenite grain significantly. Through the analysis by TEM and EDX, a large amount of Nb precipitation particles can be observed in the steel with 0.09% Nb tempered at 650°C for 1h and these particles are generally small than 20nm.

Info:

Periodical:

Materials Science Forum (Volumes 638-642)

Main Theme:

Edited by:

T. Chandra, N. Wanderka, W. Reimers , M. Ionescu

Pages:

3508-3513

DOI:

10.4028/www.scientific.net/MSF.638-642.3508

Citation:

X. C. Li et al., "The High Nb Content Microalloying Approach for Developing High Performance Structural Steel ", Materials Science Forum, Vols. 638-642, pp. 3508-3513, 2010

Online since:

January 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.