Effect of Shot-Peening on Fine Grain Steel

Abstract:

Recently, the study of fine grain steels aimed at achieving into high strength has become active. Welding is one of the most effective methods for connecting the structural components. For those cases, the negative influence of any residual tensile stress induced during the welding process must be considered. It has been proved that shot-peening can effectively solve this problem. However, the influence of the Shot-Peening process on fine grain steels after welding has only been briefly reported up to now. In this study, fine grain steels were used, and specimens were obtained after heat treatment. Residual stress distributions near the surface of the fine grain steel after shot-peening were measured by X-ray diffraction technology. Moreover, the effect of hardness on distributions near the shot-peened surface was also estimated.

• Periodical: Materials Science Forum (Volumes 561-565)
• Pages: 2103-2106
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.561-565.2103
• Online since: October 2007
• Authors: Katsuhiro Seki, Hashimoto Munetoh, Masahide Gotoh, Hajime Hirose
• Keywords: Fine Grain Steel, Full Width Half Maximum (FWHM), Hardness, Residual Stress, X-Ray

References

[1] Tsuji: The journal of the Iron and Steel Institute of Japan Vol. 88 (2002), pp.359-369.

[2] Niikura: Bulletin of the Iron and Steel Institute of Japan Vol. 8 (2003), pp.718-724.

[3] Information on http: /www. nims. go. jp/stx-21/jp/index-j. html.

[4] Information on http: /www. nakayama-steel. co. jp/t/pdf/nfgpamph. pdf.

[5] Otani and Sasabe: Quarterly journal of the Japan Welding Society Vol. 21 (2003), pp.243-248.

[6] Tosya and Iida: Journal of the Japan Society of Precision Engineering Vol. 52 (1986), pp.535-539.

[7] Tosya and Iida: Journal of the Japan Society of Precision Engineering Vol. 54 (1988), pp.107-111.