DocumentCode
530706
Title
Notice of Retraction
Study on hot forging parameter of high nitrogen retaining ring steel
Author
Lei Zhu ; Yunlai Ren ; Shaomin Nie
Author_Institution
Mech. Eng. Coll., Yanshan Univ., Qinhuangdao, China
Volume
2
fYear
2010
fDate
24-26 Aug. 2010
Firstpage
517
Lastpage
521
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The hot forging parameter of Mn18Cr18N retaining ring steel were studied in the temperature range 9500~1200°C and strain rate range 0.005~0.5 s-1 using hot compression tests. Processing maps for hot working were developed on the basis of the variations of efficiency of power dissipation with temperature and strain rate, interpreted using a dynamic materials model. A hot deformation equation is given to characterize the dependence of peak stress on the temperature and strain rate. A hot deformation apparent activation energy of Mn18Cr18N is about 563 kJ/mol. The maps exhibit a clear domain with its peak efficiency at about 1100~1150°C and 0.005~0.01 s-1; the domain has its peak efficiency of about 40% for different strains. On the basis of hot deformation microstructural observations, the full recrystallization region can be identified in the processing map at the domain.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The hot forging parameter of Mn18Cr18N retaining ring steel were studied in the temperature range 9500~1200°C and strain rate range 0.005~0.5 s-1 using hot compression tests. Processing maps for hot working were developed on the basis of the variations of efficiency of power dissipation with temperature and strain rate, interpreted using a dynamic materials model. A hot deformation equation is given to characterize the dependence of peak stress on the temperature and strain rate. A hot deformation apparent activation energy of Mn18Cr18N is about 563 kJ/mol. The maps exhibit a clear domain with its peak efficiency at about 1100~1150°C and 0.005~0.01 s-1; the domain has its peak efficiency of about 40% for different strains. On the basis of hot deformation microstructural observations, the full recrystallization region can be identified in the processing map at the domain.
Keywords
compressive testing; deformation; forging; hot working; recrystallisation; rings (structures); steel; stress analysis; MnCrN; activation energy; dynamic materials model; hot compression test; hot deformation equation; hot forging parameter; hot working processing map; peak stress; power dissipation; recrystallization region; ring steel; strain rate; temperature 9500 degC to 1200 degC; Artificial neural networks; Deformable models; Manganese; Microstructure; Optical wavelength conversion; Mn18Cr18N; efficiency of power dissipation; high nitrogen retaining ring steel; hot forging; processing maps;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer, Mechatronics, Control and Electronic Engineering (CMCE), 2010 International Conference on
Conference_Location
Changchun
Print_ISBN
978-1-4244-7957-3
Type
conf
DOI
10.1109/CMCE.2010.5610240
Filename
5610240
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