Review on process parameters effect on fatigue crack growth rate in friction stir welding

2019 ◽  
Vol 18 ◽  
pp. 3061-3070
Author(s):  
J. Das ◽  
S.R. Banik ◽  
S.R.S.K. Reddy ◽  
M.R. Sankar ◽  
P.S. Robi
Keyword(s):  
Growth Rate ◽  
Fatigue Crack ◽  
Friction Stir Welding ◽  
Crack Growth Rate ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Fatigue Crack Growth Rate ◽  
Process Parameters ◽  
Friction Stir

Fatigue Crack Growth Analysis of Mild Steel Plate Welded by Friction Stir Welding

2013 ◽  
Author(s):  
K. N. Pandey ◽  
Saurabh Kumar Gupta
Keyword(s):  
Growth Rate ◽  
Fatigue Crack ◽  
Friction Stir Welding ◽  
Crack Growth Rate ◽  
Fatigue Crack Growth ◽  
Mild Steel ◽  
Crack Growth ◽  
Base Metal ◽  
Steel Plate ◽  
Friction Stir

Parts and structures are often welded together in different ways, as it is cost and weight effective in comparison to conventional bolted and riveted joints. Steel followed by aluminum alloys, are the most frequently welded metal. Welding results in inhomogeneous and different materials near the joint which may lead to defects. These defects may be the cause of initiation and development of cracks as a result of cyclic loading. In the present work fatigue crack growth rate of a mild steel plate welded by friction stir welding (FSW) has been studied under constant amplitude load with different values of R-ratio. Hardness in the base metal was found to be low in comparison to thermo-mechanically affected and weld nugget zone. Grain size of weld zone was much smaller to base metal and it was the same to heat affected zone and base metal. A C-T specimen with notch at welded and non welded region was tested to get the behavior of Fatigue Crack Growth (FCG) at different zones. It has been found that the fatigue crack growth rate in welded material is lower as compared to base material.

Influence of reactor water of nominal parameters on fatigue crack growth rate in 15Kh2NMFA steel

1985 ◽  
Vol 21 (2) ◽  
pp. 130-133
Author(s):  
V. I. Pokhmurskii ◽  
A. S. Zubchenko ◽  
A. A. Popov ◽  
I. P. Gnyp ◽  
V. M. Timonin ◽  
...  
Keyword(s):  
Growth Rate ◽  
Fatigue Crack ◽  
Crack Growth Rate ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Fatigue Crack Growth Rate ◽  
Reactor Water ◽  
15Kh2nmfa Steel

Effect of Hardness and Tensile Mean Stress on Fatigue Crack Growth in Beryllium Copper

1969 ◽  
Vol 11 (3) ◽  
pp. 343-349 ◽  
Author(s):  
L. P. Pook
Keyword(s):  
Growth Rate ◽  
Fatigue Crack ◽  
Crack Growth Rate ◽  
Fatigue Crack Growth ◽  
Residual Stresses ◽  
Crack Growth ◽  
Fatigue Crack Growth Rate ◽  
Mean Stress ◽  
Growth Data ◽  
Beryllium Copper

Some fatigue crack growth data have been obtained for age-hardened beryllium copper. The fatigue crack growth rate was found to be very dependent on the hardness and tensile mean stress. This dependence is believed to be associated with the intense residual stresses surrounding Preston-Guinier zones.

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