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Achieving Optimum Structure and Mechanical Behaviour in 12Cr2NiWV steel via Austenizing and Tempering Temperatures

Publish place: 3rd International Conference on Materials Heat Treatment
Publish Year: 1391
Type: Conference paper
Language: English
View: 2,452

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Link to this Paper:
https://civilica.com/doc/153017

Document National Code:

ICMH03_064

Index date: 11 July 2012

Achieving Optimum Structure and Mechanical Behaviour in 12Cr2NiWV steel via Austenizing and Tempering Temperatures abstract

12Cr2NiWV is a creep resistant bainitic steel. The aim of this study is the evaluation of heat treatment parameters which can provide the optimum austenizing and tempering conditions and improve the impact resistance of this alloy. For these purposes austenizing and tempering process at different temperatures were carried out for one hour. Scanning electron microscopy was used to evaluate the final structures. Mechanical behavior of this steel was also examined by hardness and impact tests after different heat treatments. Tempered structure of this particular steel included acicular shaped bainite and peroeutectoid ferrite which included a high density of fine carbide particles around the bainite. The results of hardness and impact energy estimations indicated that temperatures of 910oC and 625oC are the best austenizing and tempering temperatures respectively.

Achieving Optimum Structure and Mechanical Behaviour in 12Cr2NiWV steel via Austenizing and Tempering Temperatures Keywords:

Bainitic steel , Acicular bainite , Mechanical behavior

Achieving Optimum Structure and Mechanical Behaviour in 12Cr2NiWV steel via Austenizing and Tempering Temperatures authors

r Gostariani

M.S.c Student of Materials Engineering, Isfahan University of Technology, Isfahan, Iran

M. Mousavinia

M.Sc. Student of Materials Engineering, Malek Ashtar University of Technology, Shahin Shahr, Iran

M.R Dehnavi

Faculties of Materials Science and Engineering, Malek Ashtar University of Technology, Shahin Shahr, Iran

K. Farmanesh