Creep-fatigue properties of zirconium added HK40 and HP heat-resisting centrifugal cast alloysYokomaku, T., Saori, M. and Okuda, T. J. Soc. Mater. Sci., Jpn. Feb. 1989 38, (425), 161–167 (in Japense)

1990 ◽  
Vol 12 (3) ◽  
pp. 228-228
Keyword(s):  
Fatigue Properties ◽  
Creep Fatigue

scholarly journals Microstructure and Grain Size Dependence of Creep and Creep-fatigue Properties of Low Carbon Medium Nitrogen Type 316 Steel

1998 ◽  
Vol 84 (2) ◽  
pp. 142-147 ◽  
Author(s):  
Takanori NAKAZAWA ◽  
Hajime KOMATSU ◽  
Yukio TAKAHASHI ◽  
Shingo DATE
Keyword(s):  
Grain Size ◽  
Size Dependence ◽  
Fatigue Properties ◽  
Low Carbon ◽  
Creep Fatigue

SOME CREEP/FATIGUE PROPERTIES OF TYPE 316 STEEL AT 625°C

1980 ◽  
Vol 3 (1) ◽  
pp. 39-57 ◽  
Author(s):  
D. S. WOOD ◽  
J. WYNN ◽  
A. B. BALDWIN ◽  
P. O'RIORDAN
Keyword(s):  
Fatigue Properties ◽  
Creep Fatigue

scholarly journals Effect of Microstructure on Creep Fatigue Properties for Type 316 Austenitic Stainless Steels

1996 ◽  
Vol 82 (6) ◽  
pp. 538-543 ◽  
Author(s):  
Nobuhiro FUJITA ◽  
Takanori NAKAZAWA ◽  
Hazime KOMATSU ◽  
Hitoshi KAGUCHI ◽  
Hideaki KANEKO ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Austenitic Stainless Steels ◽  
Fatigue Properties ◽  
Creep Fatigue ◽  
Effect Of Microstructure

Creep-Fatigue Properties for Repair Welded Joint

2006 ◽  
Author(s):  
Isamu Nonaka ◽  
Keiji Kubushiro ◽  
Takuya Ito ◽  
Yoshio Takagi
Keyword(s):  
Weld Joint ◽  
Heat Affected Zone ◽  
Welded Joint ◽  
Axial Strain ◽  
Strain Range ◽  
Fatigue Properties ◽  
Piping System ◽  
Partial Repair ◽  
Joint Specimen ◽  
Creep Fatigue

Repair welding has been performed when damage has been detected in aged power boiler piping. Discontinuity of deformation ability occurs between the new weld metal and degraded used material in the repair welded joint. Therefore creep-fatigue properties become important under displacement controlled piping system loading. Partial repair welded joint specimen and full repair weld joint specimen were made using the retired 2.25Cr-1Mo steel main steam header. In order to clarify the creep-fatigue properties for two kinds of repair welded joint specimens, fatigue tests under 0.7% strain range with 60min tensile strain dwell were performed at 600C. Both kinds of specimens were necked and fractured at the heat affected zone of welded joint due to the axial strain concentration and ratcheting at heat affected zone. The creep-fatigue life of partial repair weld joint specimen was about half of that of full repair weld joint specimen. This may be due to the low creep-fatigue resistance of the heat affected zone for partial repair welded joint specimen.

Creep-Fatigue Properties of the Candidate Materials of 700°C-USC Boiler

2007 ◽  
Author(s):  
Keiji Kubushiro ◽  
Hiroki Yoshizawa ◽  
Takuya Itou ◽  
Hirokatsu Nakagawa
Keyword(s):  
Hold Time ◽  
Strain Range ◽  
Small Strain ◽  
Fatigue Tests ◽  
Holding Time ◽  
Experimental Results ◽  
Fatigue Properties ◽  
Alloy 617 ◽  
Creep Fatigue ◽  
Cycles To Failure

Creep-fatigue properties of candidate materials of 700°C-USC boiler are investigated. The candidate materials are Alloy 230, Alloy 263, Alloy 617 and HR6W. Creep-fatigue tests were conducted at 700°C and the effect of both strain range and hold time were studied. Experimental results showed that at 1.0% strain range, cycles to failure with 60 min strain holding is about 10% of that without strain holding, but at 0.7% strain range, cycles to failure with 60 min strain holding decreases down to about 1% of without strain holding. It appears that cycles to failure is decreased by increasing strain holding time at all tested strain ranges, and the effect of holding time is emphasized at small strain range. These phenomena depend on the kind of alloys.

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