Low Cyclic Fatigue Behavior of 32%Mn Nonmagnetic Steel and the Effects of C and N in Liquid Nitrogen and Liquid Helium

Last year we reported1 that there is a striking reduction in the rate of mass loss when a specimen is observed at liquid helium temperature. It is important to determine whether liquid helium temperature is significantly better than liquid nitrogen temperature. This requires a good understanding of mass loss effects in cold stages around 100K.

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Static and Cyclic Fatigue Behavior of Gas Pressure Sintered Silicon Nitride

4th International Symposium on Ceramic Materials and Components for Engines ◽

10.1007/978-94-011-2882-7_46 ◽

1992 ◽

pp. 451-458

Author(s):

Satoshi Iio ◽

Tomonori Niwa ◽

Yo Tajima ◽

Masakazu Watanabe

Keyword(s):

Silicon Nitride ◽

Fatigue Behavior ◽

Cyclic Fatigue ◽

Gas Pressure ◽

Sintered Silicon

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Low Cyclic Fatigue Behavior of Alloy 625 at Ambient and Elevated Temperatures

Lecture Notes in Mechanical Engineering - Structural Integrity Assessment ◽

10.1007/978-981-13-8767-8_55 ◽

2019 ◽

pp. 653-661

Author(s):

Mubashir Bashir ◽

R. Kannan ◽

R. Sandhya ◽

G. A. Harmain

Keyword(s):

Elevated Temperatures ◽

Fatigue Behavior ◽

Cyclic Fatigue ◽

Alloy 625

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The Cyclic Fatigue Behavior for 6061-T6 Al Alloy Shafts Processed by Laser Shock Peening

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1002.21 ◽

2020 ◽

Vol 1002 ◽

pp. 21-32

Author(s):

Ahmed R. Alhamaoy ◽

Ghanim Sh. Sadiq ◽

Furat I. Hussein ◽

S.N. Ali

Keyword(s):

Pulse Energy ◽

Fatigue Behavior ◽

High Stress ◽

Weight Ratio ◽

Cyclic Fatigue ◽

Laser Shock Peening ◽

Al Alloy ◽

Laser Shock ◽

Noticeable Effect ◽

Shock Peening

The optimal combination of aluminum quality, sufficient strength, high stress to weight ratio and clean finish make it a good choice in driveshafts fabrication. This study has been devoted to experimentally investigate the effect of applying laser shock peening (LSP) on the fatigue performance for 6061-T6 aluminum alloy rotary shafts. Q-switched pulsed Nd:YAG laser was used with operating parameters of 500 mJ and 600 mJ pulse energies, 12 ns pulse duration and 10 Hz pulse repetition rate. The LSP is applied at the waist of the prepared samples for the cyclic fatigue test. The results show that applying 500 mJ pulse energy yields a noticeable effect on enhancing the fatigue strength by increasing the required number of cycles to fracture the sample. In addition, the effect on increasing the pulse energy from 500 mJ to 600 mJ shows a significant effect in term of creating the endurance limit for the samples.

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Role of Crack-Bridging Ligaments in the Cyclic Fatigue Behavior of Alumina

Journal of the American Ceramic Society ◽

10.1111/j.1151-2916.1992.tb04374.x ◽

1992 ◽

Vol 75 (11) ◽

pp. 2976-2984 ◽

Cited By ~ 43

Author(s):

Frank Guiu ◽

Ming Li ◽

Michael J. Reece

Keyword(s):

Fatigue Behavior ◽

Cyclic Fatigue ◽

Crack Bridging

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Multiaxial Low Cycle Fatigue Life Prediction at 300 °C Using Equivalent Strain Appoach

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.361-363.1669 ◽

2011 ◽

Vol 361-363 ◽

pp. 1669-1672

Author(s):

Wen Xiao Zhang ◽

Guo Dong Gao ◽

Guang Yu Mu

Keyword(s):

Fatigue Life ◽

Life Prediction ◽

Low Cycle Fatigue ◽

Fatigue Behavior ◽

Strain Range ◽

Cyclic Fatigue ◽

Equivalent Strain ◽

Multiaxial Fatigue ◽

Fatigue Life Prediction ◽

Cycle Fatigue

The low cycle fatigue behavior was experimentally studied with the 3-dimension notched LD8 aluminum alloy specimens at 300°C. The 3- dimension stress-strain responses of specimens were calculated by means of the program ADINA. The multiaxial fatigue life prediction was carried out according to von Mises’s equivalent theory. The results from the prediction showed that the equivalent strain range can be served as the valid mechanics for predicting multiaxial high temperature and low cyclic fatigue life.

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Epr of Mn2+ in Ni(CH3COO)2 4H2O and K2 Ni(SO4)2 6H2O

MRS Proceedings ◽

10.1557/proc-3-515 ◽

1980 ◽

Vol 3 ◽

Author(s):

Sushil K. Misra ◽

M. Jalochowski

Keyword(s):

Electron Paramagnetic Resonance ◽

Magnetic Properties ◽

Transition Temperature ◽

Single Crystals ◽

Liquid Helium ◽

Liquid Nitrogen ◽

Spin Hamiltonian ◽

Paramagnetic Resonance ◽

Hamiltonian Parameters ◽

Electron Paramagnetic

ABSTRACTThe technique of electron paramagnetic resonance has been applied to study the magnetic properties of nickel acetate and nickel potassium tutton salt single crystals, using Mn2+ ion as probe. From the values of spin Hamiltonian parameters and linewidths at room, liquid nitrogen and liquid helium temperatures it is concluded that these crystals do not become magnetically ordered as the temperature is lowered to 3.2K, and thus the transition temperature, below which the crystal would order either ferromagnetically, or antiferromagnetically, for these crystals, should be below 3.2K.

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