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A Study on the Corrosion Resistance of Hot Stamped Automotive Parts  

Yoo, Ji-Hong (Hyundai Motor Company)
Nam, Seung-Man (Hyundai HYSCO)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.18, no.5, 2010 , pp. 25-30 More about this Journal
Abstract
The authors have studied on the corrosion resistance of the hot stamped steel sheets for the application to automotive parts. Recently automotive companies have focused on the hot stamped parts to meet the light weighting needs and the safe reason. Because of the cost reduction of the hot stamped parts, automotive companies increase the usage of the coated steel sheets, especially Al-Si coated steel sheets. The coated layer of Al-Si coated steel sheets contains up to 50% of Fe, which was diffused from the steel sheet, after hot stamping. The hot stamped steel sheet was not phosphated due to the oxidation layer of the coating, however, the result of the water resistance test is similar to that of the conventional GA steel sheets. The pitting depth and the weight reduction of the coated layer of hot stamped steel sheets are less than those of GA steel.
Keywords
Hot stamped parts; Aluminized steel sheets; Corrosion; Water resistance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 L. Vaissiere, "Development of Pre-Coated Boron Steel for Applications on PSA Peugeot Citroen and RENAULT Bodies in White," SAE 2002-01-2048, 2002.
2 X. Bano and J. P. Laurent, "Heat Treated Boron Steels in the Automotive Industry," 39th Mechanical Working and Steel Processing Conference Proceedings, Vol. XXXV.
3 M. Merklein and J. Lechler, "Investigation of the Thermo-mechanical Properties of Hot Stamping Steels," J. Mat. Proc. Tech., Vol. 177(1-3), pp.452-455, 2006.   DOI
4 M. Suehiro, "Properties of Aluminum-coated Steels for Hot-forming," Nippon Steel Technical Report, No.88, 2003.
5 G. Krauss, Steels, Heat Treatment and Processing Principles, ASM International, 1990.
6 A. R. Marder and G. Krauss, "The Morphology of Martensite in Iron Carbon Alloys," Trans. ASM 60, pp.651-660, 1967.
7 A. R. Marder and G. Krauss, "Hardenability Concepts with Applications to Steel," AIME, Vol.238, 1978.
8 A. K. Sinka, Physical Metallurgy Handbook, McGraw Hill Handbooks, pp.1.23,13.123, 2003.
9 J. Shaw, "Steel Strength and Processing Effects on Impact Deformation for a Crash Energy Management Component," SAE 2001-01-1053, 2001.
10 J. R. Fekete, "A Comparison of Energy Absorption of HSLA vs. Dual Phase Sheet Steel in Dynamic Crush," IBEC, 2001.
11 S. B. Kim, "Dynamic Tensile Characteristics of the High Strength Steel Sheet for an Autobody," Transactions of KSAE, Vol.15, No.1, pp.171-176, 2007.   과학기술학회마을