Observation of initiation and early growth of small cracks during high-temperature low-cycle fatigue in 304 stainless steel.

1987 ◽  
Vol 36 (408) ◽  
pp. 974-979 ◽  
Author(s):  
Ryuichi OHTANI ◽  
Toshiya KINAMI ◽  
Hideaki MURAYAMA ◽  
Tetsuya WATABE
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Low Cycle Fatigue ◽  
Early Growth ◽  
304 Stainless Steel ◽  
Cycle Fatigue ◽  
Small Cracks

High Temperature Low-Cycle Fatigue of Friction Welded Joints-Type 304-304 Stainless Steel and Alloy 718-718 Nickel Base Superalloy

1993 ◽  
Vol 115 (1) ◽  
pp. 109-115
Author(s):  
T. Wakai ◽  
M. Sakane ◽  
M. Ohnami ◽  
K. Okita ◽  
Y. Fukuchi
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Fatigue Strength ◽  
Base Metal ◽  
Welded Joints ◽  
Low Cycle Fatigue ◽  
304 Stainless Steel ◽  
Alloy 718 ◽  
Cycle Fatigue ◽  
Type 304

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.

Waveform Effect on the Low Cycle Fatigue Behavior of AISI 304 Stainless Steel at High Temperature

1991 ◽  
Vol 51-52 ◽  
pp. 1-6
Author(s):  
Sang Rok Lee ◽  
Hak Joo Lee ◽  
Jin Oh Chung ◽  
Sae-Wook Oh ◽  
Chung-Weon Huh ◽  
...  
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
304 Stainless Steel ◽  
Cycle Fatigue ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304
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