Paper Title:
Characterization of Microstructure and Mechanical Properties of a Nb-Microalloyed Steel after Quenching-Partitioning-Tempering Process
  Abstract

A novel heat treatment process, that is, quenching-partitioning-tempering (Q-P-T) process, has been developed as a new way to obtain ultrahigh strength martensitic structural steel containing retained austenite and alloying carbide. In order to display merit of the Q-P-T process, a medium carbon Nb-microalloyed steel is treated by Q-P-T 1-step process and Q-P-T 2-step process, as well as treated by the transformation induced plasticity heat treatment process and quenching and tempering process, respectively. The results show that Q-P-T samples possess better mechanical properties than those treated by other heat treatment processes. The origin of the good mechanical properties is analyzed based on the phase and microstructure characterization using X-ray diffraction, scanning electron microscopy and transmission electron microscopy.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
90-93
DOI
10.4028/www.scientific.net/MSF.654-656.90
Citation
X. D. Wang, Z. H. Guo, Y. H. Rong, "Characterization of Microstructure and Mechanical Properties of a Nb-Microalloyed Steel after Quenching-Partitioning-Tempering Process", Materials Science Forum, Vols. 654-656, pp. 90-93, 2010
Online since
June 2010
Export
Price
$32.00
Share

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

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

Authors: Anil Kumar, Rohit Kumar Gupta, M.K. Karthikeyan, P. Ram Kumar, Parameshwar Prasad Sinha
Chapter 7: Materials Characterisation
Abstract:Martensitic grade stainless steels are being extensively used in aerospace, defence and nuclear sectors for structural applications....
489
Authors: Yang Zheng Zeng, Kai Ming Wu, Feng Hu, Hua Zheng
Chapter 4: Materials Forming
Abstract:The effect of partitioning process of quenching-partitioning-tempering (Q-P-T) process on hardness and microstructure were investigated. The...
1053
Authors: Siti Hawa Mohamed Salleh, Mohd Nazree Derman, Mohd Zaidi Omar, Junaidi Syarif, S. Abdullah
Abstract:440C martensitic stainless steels are widely used because of their good mechanical properties. The mechanical properties of 440C martensitic...
105
Authors: Jun Ru Li, Chen Gong, Le Yu Zhou, Lie Chen, Hui Zuo, Ya Zheng Liu
Symposium S: Materials for Mechanical Engineering and Processing Technology
Abstract:In this work, the effects of final heat treatment including quenching and tempering process on mechanical properties of 10Cr12Ni3Mo2VN steel...
472