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Analysis of the Microstructure of High Chrome Steel for Roller under Forged Annealed State

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Abstract:

Nowadays, the high chrome steel for roller is increasingly widely used in cold-rolled industry. The microstructure of rollers under forged annealed state has a significant influence on its final mechanical properties. This paper investigates the annealed microstructure of a new high chrome steel for roller, using methods of SEMDESXRD and hardness tests. The results show that the spheroidizing annealed high chromium steel is constitutive of ferrite and globular cementite, and the microstructure is relatively reasonable. But there are disadvantage characters such as small holes in the vicinity of the grain boundary, and residual lamellar pearlite exists in local area. In this paper, generation mechanisms of these characters are explained, and prevention methods are given for the weakness of the high chorme steel for roller.

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Periodical:

Advanced Materials Research (Volumes 791-793)

Pages:

386-389

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.791-793.386

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Online since:

September 2013

Authors:

Jie Yang, Fang Quan

Keywords:

High Chrome Steel for Roller, Microstructure, Spheroidizing Annealing

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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