Grain Size Effect on Low Cycle Fatigue Behavior of High Strength Structural Materials

Ryuichiro Ebara

doi:10.4028/www.scientific.net/SSP.258.269

Paper Titles

Scales of Metal Fatigue Failures and Mechanisms for Origin of Subsurface Fracture Formation
p.249

The Influence of Microstructure Heterogeneities on the Very High Cycle Fatigue Behavior of Duplex Stainless Steel
p.255

Hydrogen-Induced Ductility Loss of Austenitic Stainless Steels for Slow Strain Rate Tensile Testing in High-Pressure Hydrogen Gas
p.259

Intrinsic Behaviour of Mode II and Mode III Long Fatigue Cracks in Zirconium and the Ti-6Al-4V Alloy
p.265

Grain Size Effect on Low Cycle Fatigue Behavior of High Strength Structural Materials
p.269

Crack Initiation in Austenitic Stainless Steel Sanicro 25 Subjected to Thermomechanical Fatigue
p.273

Deformation and Fracture of Metallic Nanowires
p.277

Method of Threshold Stress Determination for a Local Approach to Cleavage Fracture
p.281

Micromechanism of Thermally Induced Breaking of One-Dimensional Nanocrystals
p.286

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Grain Size Effect on Low Cycle Fatigue Behavior of High Strength Structural Materials

Abstract:

This paper presents grain size effect on low cycle fatigue behavior of high strength maraging steel with gain size of 20,60 and 100μm and Ti-6Al-4V alloy with grain size of 0.5,1.4 and 5.1μm. Low cycle fatigue strength of the maraging steel depends on grain size in number of cycles up to 10³.The smaller the grain size, the higher the low cycle fatigue strength was. Quasci-cleavage fracture surfaces were predominant for material with grain size of 20μm,while intergranular fracture surfaces were predominant for materials with larger grain size in number of cycles lower than 60. Striation was predominant for all tested materials in number of cycles higher than 60.Low cycle fatigue strength of Ti-6Al-4V alloy also depends on grain size in number of cycles up to 10⁴. Grain size dependent transgranular fracture surfaces were predominant for materials with ultra-fine grain size of 0.5μm and fine grain size of 1.4μm.

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Periodical:

Solid State Phenomena (Volume 258)

Pages:

269-272

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.258.269

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Online since:

December 2016

Authors:

Ryuichiro Ebara*

Keywords:

Fracture Surface Morphology, Grain Size, Low Cycle Fatigue, Maraging Steel, Ti-6Al-4V Alloy

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References

[1] S. Taira, K. Tanaka and M. Hoshina, Fatigue Mechanisms, Proceedings of an ASTM-NBS-NSF symposium 1978, the ASTM STP675, edited by J.T. Fong, American Society of Testing and Materials, (1979)p.135.

Google Scholar

[2] E.A. Starke, Jr., Fatigue and Microstructure, Papers presented at the 1978 ASM Materials Science Seminar, America Society for Metals, (1978), 205.

Google Scholar

[3] D.H. Breen and E.M. Wene, ibid., America Society for Metals, (1978)57.

Google Scholar

[4] R. Ebara,Y. Ishibashi,T. Yamane and T. Yamada, Proceedings of the Fall Meeting of the Japan Institute of Metals, Vol. 3(1977)S578.

Google Scholar

[5] T. Nakaiso, M. Tanada, R. Ebara, J. Nakhigashi,H. Yoshimura and K. Yamano, Proceedings of the Fatigue 2006, FT172 (CDROM).

Google Scholar

[6] T. Nakaiso, Master Thesis, Kagawa University, (2005).

Google Scholar