Study on the Dimensional Changes and Residual Stresses in Carbonitrided and Ferritic Nitrocarburized SAE 1010 Plain Carbon Steel

Abstract:

Carbonitriding is a metallurgical surface modification technique that is widely used in the automotive industry to increase surface hardness and wear resistance. Given the problems associated with carbonitriding, such as dimensional distortion, oxidation and non-uniform surface hardness, nitrocarburizing has been proposed as an alternative heat treatment method to improve the surface characteristics. The major advantages of ferritic nitrocarburizing are the minimal dimensional changes and distortion due to the low process temperature at which no phase transformations occur. This increases productivity and product quality, and decreases costs. The focus of this study was to determine the effects of carbonitriding and ferritic nitrocarburizing processes on the dimensional changes and residual stresses in a steel used for automotive applications. Navy C-ring specimens and prototype stamped parts made from SAE 1010 plain carbon steel were used in the testing. Gas, vacuum and ion ferritic nitrocarburizing processes with different heat treatment parameters were investigated. X-ray diffraction techniques were used for the residual stresses evaluation and surface phase analysis of the specimens.

• Periodical: Materials Science Forum (Volumes 638-642)
• Pages: 829-834
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.638-642.829
• Online since: January 2010
• Authors: Chun Yan Nan, Derek O. Northwood, Randy J. Bowers, Xi Chen Sun
• Keywords: Carbonitriding, Dimensional Distortion, Ferritic Nitrocarburising, Residual Stress

References

[1] J. R. Davis, in Surface Harding of Steels: Understanding the Basics, edited by J. R. Davis, chapter, 5, ASM International (2002).

[2] G. Krauss: Steels: Processing, Structure, and Performance, ASM International (2005).

[3] J. Dossett, in: Carbonitriding, volume 4 of ASM Handbook, Heat Treating, ASM International (1991).

[4] J. R. Davis, in Surface Hardening of Steels: Understanding the Basics, edited by J.R. Davis, chapter, 7, ASM International (2002).

[5] D. Pye: Practical nitriding and ferritic nitrocarburizing, ASM International (2003).

[6] A. Wells: Mater. Sci., Vol. 20 (1985), pp.2439-2445.

[7] T. Bell, in: Gaseous and Plasma Nitrocarburizing, volume 4 of ASM Handbook, Heat Treating, ASM International (1991).

[8] T. Bell, Y. Sun and A. Suhadi: Vacuum, Vol. 59 (2000), pp.14-23.

[9] Information on http: /www. tdcoating. com/td_glossary_terms9a. htm#v. html.

[10] P. Schobesberger, T. Streng and S. Abbas: Industrial Heating, Vol. 69 (2) (2002), pp.30-34.

[11] Standard Test Method for Verifying the Alignment of X-Ray Diffraction Instrumentation for Residual Stress Measurement, E915-96, ASTM International (2002).

DOI: 10.1520/e0915-16

[12] J. A. Pineault, M. Belassel and M. E. Brauss, in: X-Ray Diffraction Residual Stress Measurement in Failure Analysis, volume 11 of ASM Handbook, Failure Analysis and Prevention, ASM International (2002).

DOI: 10.31399/asm.hb.v11.a0003528

[13] C. Ruud, in: Measurement of Residual Stresses, edited by G. Totten, M. Howes and T. Inoue, Handbook of Residual Stress and Deformation of Steel, ASM International (2002).

[14] H. W. Walton, in: Deflection Methods to Estimate Residual Stress, edited by G. Totten, M. Howes and T. Inoue, Handbook of Residual Stress and Deformation of Steel, ASM International (2002).

[15] Z. Kolozsváry, in: Residual Stress in Nitriding, edited by G. Totten, M. Howes and T. Inoue, Handbook of Residual Stress and Deformation of Steel, ASM International (2002).

[16] T. R. Watkins, R. D. England, C. Klepser and N. Jayaraman: Advances in X-ray Analysis, Vol. 43 (2000), pp.31-38.

[17] T. Réti, in: Residual Stresses in Carburized, Carbonitrided, and Case-Hardened Components, edited by G. Totten, M. Howes and T. Inoue, Handbook of Residual Stress and Deformation of Steel, ASM International (2002).

[18] C. Kanchanomai and W. Limtrakarn: Materials Engineering and Performance, Vol. 17 (6) (2008), pp.879-887.