scholarly journals Rotating Load Type Fatigue Testing Machine and Its Application to Study on Fatigue of Low Carbon Steel at Elevated Temperatures

1957 ◽  
Vol 6 (45) ◽  
pp. 401-405
Author(s):  
Shuji TAIRA ◽  
Ryoichi KOTERAZAWA
Keyword(s):  
Carbon Steel ◽  
Elevated Temperatures ◽  
Fatigue Testing ◽  
Testing Machine ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Rotating Load

Comparison Study of Oxidation Behavior of Low Carbon Steel at Elevated Temperatures

2014 ◽  
Vol 1025-1026 ◽  
pp. 504-508 ◽  
Author(s):  
Sang An Ha ◽  
Dong Kyun Kim ◽  
Woo Jin Lee ◽  
Chang Yong Kang ◽  
Kwon Hoo Kim ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Oxidation Rate ◽  
Cyclic Oxidation ◽  
Oxidation Behavior ◽  
Elevated Temperatures ◽  
Low Carbon Steel ◽  
Comparison Study ◽  
Low Carbon ◽  
Increasing Temperature ◽  
Continuous Oxidation

Comparison study of oxidation behavior of low carbon steel was conducted at the temperature range of 500°C to 700°C under a 0.2 atm oxygen pressure by continuous and discontinuous oxidation methods. Oxidation rate of both cases was found to be increased with increasing temperature from 500°C to 700°C and obeyed parabolic rate law. In addition, activation energy for the continuous oxidation of steel was found to be a 164.8 kJ/mole, which means that oxidation rate is proportionally dependant on temperature. In case of cyclic oxidation, the oxidation rate was shown to faster than continuous oxidation at all temperatures due to direction oxidation through spallation of the oxide layer.

High-Cycle Fatigue and Thermal Dissipation Investigations for Low Carbon Steel Q345

2015 ◽  
Vol 664 ◽  
pp. 305-313 ◽  
Author(s):  
Han Qing Liu ◽  
Qing Yuan Wang ◽  
Zhi Yong Huang ◽  
Zhen Jie Teng
Keyword(s):  
Carbon Steel ◽  
High Cycle Fatigue ◽  
Fatigue Testing ◽  
Low Carbon Steel ◽  
Infrared Camera ◽  
Fatigue Property ◽  
Thermal Dissipation ◽  
Loading Frequency ◽  
Cycle Fatigue ◽  
Low Carbon

Carbon steel is a kind of metallic material that widely used in construction, machinery, manufacturing and other domains. In the mechanical structure system, long-term cyclic stress may cause the mechanical components failure. In this work, the characteristic of fatigue crack propagate in low carbon steel Q345 and the effect of loading frequency to the fatigue property of Q345 steel were investigated. Meanwhile, the dispersion of high-cycle fatigue of life of the Q345 steel under high fatigue testing frequency was analyzed, and the P-S-N curve with the test data was given out. With the help of infrared camera, temperature rise curve during fatigue test was analyzed to study the thermal dissipation of Q345 steel.

scholarly journals Effect of Grain-size on Fatigue Strength of Low Carbon Steel at Elevated Temperatures

1978 ◽  
Vol 21 (152) ◽  
pp. 181-188 ◽  
Author(s):  
Norihiko HASEGAWA ◽  
Yozo KATO ◽  
Masaki NAKAJIMA
Keyword(s):  
Grain Size ◽  
Fatigue Strength ◽  
Carbon Steel ◽  
Elevated Temperatures ◽  
Low Carbon Steel ◽  
Low Carbon

The Electrical Contact Resistance in Resistance Welding Evaluated by Gleeble Testing Machine

2008 ◽  
Vol 575-578 ◽  
pp. 753-756 ◽  
Author(s):  
Wei Min Zhou
Keyword(s):  
Carbon Steel ◽  
Contact Resistance ◽  
Electrical Contact ◽  
Testing Machine ◽  
Low Carbon Steel ◽  
Resistance Welding ◽  
Measuring System ◽  
Low Carbon ◽  
Electrical Contact Resistance ◽  
Gleeble 3500

Electrical contact resistance is an important parameter in resistance welding. In this article, a Gleeble 3500 thermal-mechanical testing machine was employed to measure the contact resistance. The machine is equipped with a special electrical resistance measuring system. The contact resistance is experimentally investigated for welding low carbon steel to themselves. A detailed work was carried out to investigate the influence of pressure, temperature on the contact resistance of low carbon steel. The experimental results show that the contact resistance decreases when pressure or temperature increases.

scholarly journals Numerical Predictions of Dry Oxidation of Iron and Low-Carbon Steel at Moderately Elevated Temperatures

1996 ◽  
Vol 465 ◽  
Author(s):  
G. A. Henshall
Keyword(s):  
Carbon Steel ◽  
Elevated Temperatures ◽  
Low Carbon Steel ◽  
Numerical Approach ◽  
Euler Method ◽  
Temperature History ◽  
Low Carbon ◽  
Model Calculations ◽  
Numerical Predictions ◽  
Dry Oxidation

ABSTRACTWrought and cast low-carbon steel are candidate materials for the thick (e.g. 10 cm) outer barrier of nuclear waste packages being considered for use in the potential geological repository at Yucca Mountain. Dry oxidation is one potential degradation mode for these materials at the moderately elevated temperatures expected at the container surface, e.g. 323–533 K (50–260 °C). Therefore, numerical predictions of dry oxidation damage have been made based on experimental data for iron and low-carbon steel and the theory of parabolic oxidation. A numerical approach employing the Forward Euler method has been implemented to integrate the parabolic rate law for arbitrary, complex temperature histories. Assuming growth of a defect-free, adherent oxide, the surface penetration of a low-carbon steel barrier following 5000 years of exposure to a severe, but repository-relevant, temperature history is predicted to be only about 0.127 mm, less than 0.13% of the expected container thickness of 10 cm. Allowing the oxide to spall upon reaching a critical thickness increases the predicted metal penetration values, but degradation is still computed to be negligible. Based on these physically-based model calculations, dry oxidation is not expected to significantly degrade the performance of thick, corrosion allowance barriers constructed of low-carbon steel.

Damage Identification of Low Carbon Steel under Tensile Based on Elastic Modulus

2014 ◽  
Vol 1061-1062 ◽  
pp. 3-6
Author(s):  
Yu Jun Xue ◽  
Shuang Shuang Liu ◽  
Ji Shun Li ◽  
Fang Yang
Keyword(s):  
Elastic Modulus ◽  
Carbon Steel ◽  
Tensile Test ◽  
Damage Identification ◽  
Testing Machine ◽  
Low Carbon Steel ◽  
Tensile Specimen ◽  
Low Carbon ◽  
Machine Loading ◽  
Tensile Process

Tensile test of low carbon steel was carried out on a universal electronic testing machine. Loading and strain test data of low carbon steel was acquired by means of the tensile test. Based on the measured tensile specimen data, elastic modulus of low carbon steel was calculated. It was found that elastic modulus of low carbon steel varied during tensile process. The damage of low carbon steel under tensile was identified by the calculation of elastic modulus.

The Rate of Growth of Fatigue Cracks

1936 ◽  
Vol 3 (1) ◽  
pp. A23-A25
Author(s):  
A. V. deForest
Keyword(s):  
Fatigue Crack ◽  
Iron Oxide ◽  
Carbon Steel ◽  
Fatigue Testing ◽  
Fatigue Cracks ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Rate Of Growth ◽  
Steel Bars ◽  
Cold Rolled

Abstract The author discusses the resistance of metal to the propagation of cracks, and points out that in the accepted method of fatigue testing the results are not conclusive because there is no distinction between (1) the load and the number of repeated stresses required to start cracks and (2) the load and the number of reversals needed to propagate the cracks to failure. The investigation reported in the paper was undertaken to determine (a) the stress and number of reversals required to start a fatigue crack, and (b) the resistance of the material to the effect of a fatigue crack once it had been formed. The tests reported were conducted on annealed cold-rolled low-carbon steel bars with various finishes. The author presents data on the rate of progress of the cracks and on the size of the cracks, the latter of which was determined by magnetizing the bars and inspecting them with finely divided iron oxide in a bath of kerosene.

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