Rapid determination of fatigue limit for wrought heat-resistant alloys

1987 ◽  
Vol 19 (11) ◽  
pp. 1531-1534
Author(s):  
A. V. Zheldubovskii
Keyword(s):  
Fatigue Limit ◽  
Rapid Determination ◽  
Heat Resistant

scholarly journals Comparison of Experimental Thermal Methods for the Fatigue Limit Evaluation of a Stainless Steel

Metals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 677 ◽  
Author(s):  
Mauro Ricotta ◽  
Giovanni Meneghetti ◽  
Bruno Atzori ◽  
Giacomo Risitano ◽  
Antonino Risitano
Keyword(s):  
Fatigue Limit ◽  
Rapid Determination ◽  
Mechanical Energy ◽  
Thermal Methods ◽  
Aisi 304L ◽  
Material Fatigue ◽  
Static Tensile ◽  
Energy Dissipated ◽  
Material Temperature

This paper regards the rapid determination of fatigue limit by using thermal data analysis. Different approaches available in the literature to estimate the fatigue limit of cold-drawn AISI 304L bars are analyzed and compared, namely, temperature- and energy-based methods. Among the temperature-based approaches, the Risitano Method (RM) and the method based on material temperature evolution recorded during a static tensile test were analyzed. Regarding the energy-based approaches, the input mechanical energy density stored in the material per cycle (i.e., the area of the hysteresis loop), the heat energy dissipated by the material to the surroundings per cycle, and the “2nd-harmonic-based” methods were considered. It was found that for the material analyzed, all the considered energy-based approaches provided a very good engineering estimation of the material fatigue limit compared to a staircase test.

scholarly journals Rapid determination of titanium in stainless steel and heat-resistant alloy by the polarographic method

1962 ◽  
Vol 11 (3) ◽  
pp. 312-317 ◽  
Author(s):  
Masao KAWAHATA ◽  
Heiichi MOCHIZUKI ◽  
Rokuro KAJIYAMA ◽  
Kazuma IRIKURA
Keyword(s):  
Stainless Steel ◽  
Rapid Determination ◽  
Polarographic Method ◽  
Heat Resistant Alloy ◽  
Resistant Alloy ◽  
Heat Resistant

Rapid Determination of Fretting Fatigue Limit by Infrared Thermography

2017 ◽  
Vol 58 (2) ◽  
pp. 259-267 ◽  
Author(s):  
S. Chhith ◽  
W. De Waele ◽  
P. De Baets
Keyword(s):  
Fatigue Limit ◽  
Infrared Thermography ◽  
Rapid Determination ◽  
Fretting Fatigue

scholarly journals Rapid determination of molybdenum in stainless steel and heat-resistant alloy by the polarographic method

1962 ◽  
Vol 11 (3) ◽  
pp. 317-321 ◽  
Author(s):  
Masao KAWAHATA ◽  
Heiichi MOCHIZUKI ◽  
Rokuro KAJIYAMA ◽  
Kazuma TRIKURA
Keyword(s):  
Stainless Steel ◽  
Rapid Determination ◽  
Polarographic Method ◽  
Heat Resistant Alloy ◽  
Resistant Alloy ◽  
Heat Resistant

Weak Beam Imaging and Diffraction Studies of Stacking Faults in Silicon

1976 ◽  
Vol 34 ◽  
pp. 590-591
Author(s):  
T. Y. Tan ◽  
W. K. Tice
Keyword(s):  
Fast Neutron ◽  
Rapid Determination ◽  
Stacking Faults ◽  
Imaging Method ◽  
Large Reduction ◽  
Dislocation Loops ◽  
Fringe Spacing ◽  
Weak Beam ◽  
Kinematical Theory

In studying ion implanted semiconductors and fast neutron irradiated metals, the need for characterizing small dislocation loops having diameters of a few hundred angstrom units usually arises. The weak beam imaging method is a powerful technique for analyzing these loops. Because of the large reduction in stacking fault (SF) fringe spacing at large sg, this method allows for a rapid determination of whether the loop is faulted, and, hence, whether it is a perfect or a Frank partial loop. This method was first used by Bicknell to image small faulted loops in boron implanted silicon. He explained the fringe spacing by kinematical theory, i.e., ≃l/(Sg) in the fault fringe in depth oscillation. The fault image contrast formation mechanism is, however, really more complicated.

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