This paper assesses the high-temperature low-cycle fatigue of the Type 304 stainless steel and Alloy 718 superalloy friction-welded joints. Strain controlled low-cycle fatigue tests for 304-304 and 718-718 friction-welded specimens were carried out at 923K in air to obtain the fatigue strength of the joints. These materials were selected as the cyclic hardening and softening materials, respectively. The 304-304 welded specimens showed inferior fatigue strength in comparison with the base metal while the 718-718 specimens exhibited fatigue strength equivalent to that of the base metal. The difference in the fatigue strength between the two materials is discussed from the viewpoint of the cyclic deformation behavior and strain reduction at weld interface.
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January 1993
Research Papers
High Temperature Low-Cycle Fatigue of Friction Welded Joints-Type 304-304 Stainless Steel and Alloy 718-718 Nickel Base Superalloy
T. Wakai,
T. Wakai
Oarai Engineering Center, Structural Engineering Section, Power Reactor & Nuclear Fuel Development Corporation, Ibaraki, 311-13, Japan
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M. Sakane,
M. Sakane
Department of Mechanical Engineering, Ritsumeikan University, Kyoto, Japan
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M. Ohnami,
M. Ohnami
Department of Mechanical Engineering, Ritsumeikan University, Kyoto, Japan
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K. Okita,
K. Okita
Hyogo Prefectural Institute of Industrial Research, Technical Center for Machinery and Metals, Miki, 673-04, Japan
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Y. Fukuchi
Y. Fukuchi
Hyogo Prefectural Institute of Industrial Research, Kobe, 654, Japan
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T. Wakai
Oarai Engineering Center, Structural Engineering Section, Power Reactor & Nuclear Fuel Development Corporation, Ibaraki, 311-13, Japan
M. Sakane
Department of Mechanical Engineering, Ritsumeikan University, Kyoto, Japan
M. Ohnami
Department of Mechanical Engineering, Ritsumeikan University, Kyoto, Japan
K. Okita
Hyogo Prefectural Institute of Industrial Research, Technical Center for Machinery and Metals, Miki, 673-04, Japan
Y. Fukuchi
Hyogo Prefectural Institute of Industrial Research, Kobe, 654, Japan
J. Eng. Mater. Technol. Jan 1993, 115(1): 109-115 (7 pages)
Published Online: January 1, 1993
Article history
Received:
November 29, 1990
Revised:
June 3, 1992
Online:
April 29, 2008
Citation
Wakai, T., Sakane, M., Ohnami, M., Okita, K., and Fukuchi, Y. (January 1, 1993). "High Temperature Low-Cycle Fatigue of Friction Welded Joints-Type 304-304 Stainless Steel and Alloy 718-718 Nickel Base Superalloy." ASME. J. Eng. Mater. Technol. January 1993; 115(1): 109–115. https://doi.org/10.1115/1.2902142
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