Niobium-Alloyed Steel Treated by Quenching-Partitioning-Tempering

Hua Zheng; Kai Ming Wu; S.F. Sun; G.W. Hu

doi:10.4028/www.scientific.net/AMM.528.149

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 528Niobium-Alloyed Steel Treated by...

Niobium-Alloyed Steel Treated by Quenching-Partitioning-Tempering

Abstract:

Given the strong recent interest in quenching-partitioning-tempering processed steels, the Niobium-alloyed medium carbon steel was investigated here. The microstructural observations and hardness were analyzed by optical microscope, transmission electron microscope, X-ray diffraction and hardness test. Results show that when quenched at 210°C and partitioned at 450°C, the quenching partitioning-tempering process leads to ultra fine-grained microstructures of martensite, retained austenite and carbides. And the microstructure and hardness changed differently with the increase of partitioned time.

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Periodical:

Applied Mechanics and Materials (Volume 528)

Pages:

149-152

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.528.149

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Online since:

February 2014

Authors:

Hua Zheng*, Kai Ming Wu, S.F. Sun, G.W. Hu

Keywords:

Microstructure, Niobium-Alloyed, Quenching-Partitioning-Tempering

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