This paper investigates the effect of solidification direction on cyclic constitutive relation and low cycle fatigue life for a directionally solidified (DS) superalloy Mar-M247LC at 1173 K in air. Strain controlled push-pull low cycle fatigue tests were carried out for three kinds of specimens of which loading direction was 0, 45 and 90 deg to DS axis. The 0 deg specimen exhibited the largest fatigue strength, the 45 deg specimen the smallest and the 90 deg specimen the intermediate. The difference in the fatigue strength due to the loading direction was discussed in detail from the viewpoint of the anisotropy of Young’s modulus. A life prediction method for DS specimens, considering the anisotropy of the Young’s modulus, was proposed and successfully applied to the low cycle fatigue data.
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April 1992
Research Papers
High Temperature Low Cycle Fatigue and Cyclic Constitutive Relation of MAR-M247 Directionally Solidified Superalloy
Tadashi Hasebe,
Tadashi Hasebe
Faculty of Engineering, Kyoto University, Honmachi Yoshida Sakyo-ku Kyoto, 606, Japan
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Masao Sakane,
Masao Sakane
Department of Mechanical Engineering, Faculty of Science and Engineering, Ritsumeikan University, Kyoto, 603, Japan
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Masateru Ohnami
Masateru Ohnami
Department of Mechanical Engineering, Faculty of Science and Engineering, Ritsumeikan University, Kyoto, 603, Japan
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Tadashi Hasebe
Faculty of Engineering, Kyoto University, Honmachi Yoshida Sakyo-ku Kyoto, 606, Japan
Masao Sakane
Department of Mechanical Engineering, Faculty of Science and Engineering, Ritsumeikan University, Kyoto, 603, Japan
Masateru Ohnami
Department of Mechanical Engineering, Faculty of Science and Engineering, Ritsumeikan University, Kyoto, 603, Japan
J. Eng. Mater. Technol. Apr 1992, 114(2): 162-167 (6 pages)
Published Online: April 1, 1992
Article history
Received:
June 20, 1990
Revised:
October 8, 1991
Online:
April 29, 2008
Citation
Hasebe, T., Sakane, M., and Ohnami, M. (April 1, 1992). "High Temperature Low Cycle Fatigue and Cyclic Constitutive Relation of MAR-M247 Directionally Solidified Superalloy." ASME. J. Eng. Mater. Technol. April 1992; 114(2): 162–167. https://doi.org/10.1115/1.2904156
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