Abstract
Flank wear, cutting force, the number and area of sulfides, and shear strain rate were measured to elucidate the synergistic effects of Cu and S additions on machinability of high-performance austenitic stainless steels with a basic composition of Fe-18 %Cr-21 %Ni-3.2 %Mo-1.6 %W-0.2 %N. As Cu and S content increased, flank wear and cutting force decreased. While Cu and S content increased, shear strain rate and shear angle increased. The tool life for an alloy with 3.1 %Cu + 0.091 %S was about four times longer than that of an alloy with 0.06%Cu + 0.005 %S due to high shear strain rate generated by Cu addition, lubricating films of ductile (Mn, Cr)S sulfides adhering to tool surface and low cutting force resulting from thinly and lengthily continuous sulfides formed in chips during machining.
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References
S. Gunnarsson, Stainless Steel’ 92 1, 147 (1992).
ANNUAL BOOK OF ASTM STANDARDS, ASTM A 582/A 582M-95a section 1, vol. 01.03, Standard Specification for Free-Machining Stainless Steel Bars, 286 (1996).
B. E. Wilde and J. S. Armijo, Corrosion 23, 203 (1967).
G. Wranglen, Corros. Sci. 14, 331 (1974).
G. Karlberg, Scand. J. Met. 3, 46 (1974).
K. Takaizawa, Y. Shimizu, E. H. Shoji and I. Tamura, ISIJ 7, 123 (1984).
H. Jonsson, Die and Mold Technology 5, 170 (1996).
S. T. Kim and Y. S. Park, Corrosion 63, 114 (2007).
S. T. Kim and Y. S. Park, Corrosion 64, 496 (2008).
Technical Committee ISO/TC 29, ’Tool-life Testing with Single-point Turning Tools’, ISO 3685-1977 (E).
Avesta Brochure, ’Stainless and Heat-resisting Steels’, (Avesta AB, S-77401 AVESTA, Sweden), Information 8922, 1 (1989).
R. A. Carolan, Che-Yu Li, P. J. Maziasz, R. W. Swindeman, J. A. Todd, and J. C. Ren, Metallurgical Transactions A 20A, 421 (1989).
F. W. Taylor, Trans. A.S.M.E. 28, 31 (1907).
C. W. Kovach, Proceeding International Symposium on Sulfide Inclusions in Steel, ASM, Port Chester, 459 (1974).
Y. M. Lee, T. S. Song, T. J. Park, and U. S. Jang, Journal of Korean Mechanical Engineering A22, 1989 (1998).
P. B. Oxley and M. G. Stevenson, J. Inst. Met. 95, 308 (1967).
D. Delieu and J. Nutting, Iron Steel Inst., London, Spec. Rept. 86, 140 (1964).
S. H. Wang, C. C. Wu, C. Y. Chen, J. R. Yang, P. K. Chiu, and J. S. Fang, Met. Mater. Int. 13, 275 (2007).
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Kim, ST., Park, YS. Effects of copper and sulfur additions on machinability behavior of high performance austenitic stainless steel. Met. Mater. Int. 15, 221–230 (2009). https://doi.org/10.1007/s12540-009-0221-6
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DOI: https://doi.org/10.1007/s12540-009-0221-6