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Title: Mechanical Surface Treatments on the High-Strength Alpha-Titanium Alloy KS 120
Author: Kiese, Zhang, Schauerte and Wagner
Source: Conf Proc: ICSP-8 Sept. 16-20, 2002 Garmisch-Partenkirchen, Germany
Publication year 2002
Document number: 2002052
Number of pages: 7
Abstract:
Authors
Jurgen Kiese 1), Jiulai Zhang 2), Oliver Schauerte 1) and Lothar Wagner 2)
1) Volkswagen AG, Wolfsburg, Germany
2) Chair of Physical Metallurgy and Materials Technology, Technical University of Brandenburg at Cottbus, Cottbus, Germany
Abstract
The a titanium alloy KS 120 was specifically developed by Kobe Steel, Japan to possess a fine grained microstructure resulting in high yield stress - high tensile ductility
combinations and excellent HCF performance. In the present investigation, shot peening and roller-burnishing were performed to determine to what extent the HCF life of KS
120 can be further improved by mechanical surface treatments. While both shot peening and roller-burnishing increased the fatigue life of KS 120 by roughly one order of
magnitude, the 10 7 cycles fatigue strength of the electro-polished reference was not improved.
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