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Mechanical Properties of Gear Steels and Other Perspective Light Weight Materials for Gear Applications
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 31, 2006 by SAE International in United States
Annotation ability available
To improve fuel economy and possibly reduce product cost, light weight and high power density has been a development goal for commercial vehicle axle components. Light weight materials, such as aluminum alloys and polymer materials, as well as polymer matrix composite materials have been applied in various automotive components. However it is still a huge challenge to apply light weight materials in components which are subject to heavy load and thus have high stresses, such as gears for commercial vehicle axles or transmissions. To understand and illustrate this challenge, in this paper we will report and review the current state of art of carburized gear steels properties and performance. The properties and performance data include the following:
- Monotonic tensile data: Young's modulus, stress strain curve, yield strength, ultimate tensile strength, and elongation,
- Strain controlled fatigue data and cyclic stress strain curve,
- Fracture toughness and fatigue crack growth rates data,
- Stress life (S-N) curves in as heat treated and shot peened conditions.
Besides the above purely materials dependent properties, contact fatigue performance of a gear steel will also be reported. Contact fatigue is a surface failure mode which not only depends on materials, but also depends on other tribological factors, such as surface finish and lubricant.
Then the properties and performance data of several perspective light weight materials will be reviewed and compared with those of carburized gear steels. These light weight materials include a powder metal, an aluminum alloy, and a polymer matrix composite material. Finally challenges and potential barriers in applying the light weight materials in power transmission gear applications will be discussed.
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CitationLin, H., Binoniemi, R., Fett, G., Woodard, T. et al., "Mechanical Properties of Gear Steels and Other Perspective Light Weight Materials for Gear Applications," SAE Technical Paper 2006-01-3578, 2006, https://doi.org/10.4271/2006-01-3578.
Advanced Materials, Designs, Concepts and Technologies in Commercial Vehicles
Number: SP-2058 ; Published: 2006-10-31
Number: SP-2058 ; Published: 2006-10-31
- AISI Bar Steel Fatigue Database, 2006.
- Sanders J.A., The Effect of Shot Peening on the Bending Fatigue Behavior of a Carburized 4320 Steel, MS Thesis, No. T-4461, Colorado School of Mines, Golden, Colorado, 1993.
- Hyde R.S., Cohen R.E., Matlock D.K., Krauss G., Bending Fatigue Crack Characterization and Fracture Toughness of Gas Carburized SAE 4320 Steel, SAE paper 920534.
- Hyde R.S., Krauss G., Matlock D.K., The Effect of Reheat Treatment on Fatigue and Fracture of Carburized Steels, SAE Paper 940788.
- Spice J.J., Matlock D.K., Fett G.A., Optimized Carburized Steel Fatigue Performance as Assessed with Gear and Modified Brugger Fatigue Tests, SAE Paper 2002-01-1003.
- Sroka Gary and Winkelmann L., Superfinish Gears - The State of the Art, Gear Technology, Nov/Dec 2003, pp. 28-33.
- ASM Handbook Vol.2, Properties and selection: Nonferrous alloys and Special purpose materials, page 114.
- Stephens R.I., Fatimi A., Stephens R.R., Fuchs H.O., 2001, Metal Fatigue in Engineering, John Wiley and Sons, Inc., pp.451.
- ASM Fatigue Data Book, Light Structural Alloys, 1995, page, 94
- Skoglund P., Kejzelman M., Hauer I., High Density PM Components by High Velocity Compaction, MPIF 2001 Int. Conf. On Power Transmission Components, Oct. 2001, Ypsilanti, MI, USA
- Hauer I., Larsson M., Engstrom U., Properties of High Strength PM Materials Obtained by Different Compaction Methods in Combination with High temperature Sintering, Powder Metallurgy, Vol. 44, No.3, 2001.
- Hoffmann G., Hanejko F.G., Slattery R.H., Crack initiation and Propagation in RCF, a new approach to understanding pitting failure of highly loaded gears, SAE paper 2006-01-0383.
- Vinson J.R., Sierakowski R.L., The behavior of Structures Composed of composite materials, 1987, Martinus Nijhoff Publishers, page 303.
- Kim R.Y., Fatigue Strength, ASM Engineering Materials Handbook, Vol. 1, Composites, page 436 - 444.
- Kessler M.R., Sottos N.R., White S.R., Self-healing structural composite materials, Composites, Part A, 2003, Vol. 34, pp 743-753.
- Marur P.R., Batra R.C., Garcia G., Loos A.C., Static and dynamic fracture toughness of epoxy/alumina composites with submicron inclusions, J. Materials Science, 39, 2004, pp 1437-1440.
- Mechanical Testing and Properties of Plastics: An Introduction, ASM handbook, Vol. 8, 2000, page 26-41.
- Conle F.A., Accounting for Scatter in Strain Life Fatigue Testing, 2002, SAE paper 2002-01-1279.
- MSC Fatigue Analysis User's Manual, V5.0, 1996, MSC Corp, Los Angeles, CA.