The fretting wear of mild steel from room temperature to 200°C

Inhibition effect of Costusafer on mild steel in 0.5 M HCl was studied using gravimetric method at room temperature. It was found out that Costusafer inhibited the corrosion of mild steel in the acidic environment and that the efficiency of inhibition increased as the concentration of the inhibitor in the environment increased. The data was used to test different isotherms and it suited the Langmuir isotherm. A value of -15.995 kJmol-1 was gotten for the ∆Goads. This value showed that the extracts of Costusafer inhibited the corrosion process through physiosorption mechanism. The high value of inhibition efficiency of the extract as the concentration increased in rationalized in terms of the increase in herteroatoms, saponnins and tannins which are present in the extract.

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Grease effect on fretting wear of mild steel

Industrial Lubrication and Tribology ◽

10.1108/00368790810858368 ◽

2008 ◽

Vol 60 (2) ◽

pp. 67-78 ◽

Cited By ~ 6

Author(s):

Antoni Neyman ◽

Jan Sikora

Keyword(s):

Mild Steel ◽

Fretting Wear

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Influence of Rate of Strain and Temperature on Yield Stresses of Mild Steel

Journal of Applied Mechanics ◽

10.1115/1.4009394 ◽

1944 ◽

Vol 11 (4) ◽

pp. A211-A218

Author(s):

M. J. Manjoine

Keyword(s):

Mild Steel ◽

Yield Stress ◽

Strain Aging ◽

Room Temperature ◽

Tensile Tests ◽

Ultimate Stress ◽

Strain Rates ◽

Discontinuous Yielding

Abstract This paper describes the influence of rate of strain and temperature on the yield stresses of mild steel. Tensile tests are reported for room temperature, 200, 400, and 600 C, at rates of strain which vary from 10−8 to 103 per sec. The results of these tensile tests are plotted to show more clearly the effects of strain-aging on the yield stresses and ultimate stress. The comparison of the yield stress at various strain rates permits an analysis of the influence of strain. The conditions necessary for discontinuous yielding are described and compared with test experiences.

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PITTING MECHANISM OF MILD STEEL IN MARGINALLY SOUR ENVIRONMENTS: PIT PROPAGATION BASED ON ACIDIFICATION BY CATALYTIC OXIDATION OF DISSOLVED HYDROGEN SULFIDE

CORROSION ◽

10.5006/3858 ◽

2021 ◽

Author(s):

Wei Zhang ◽

Bruce Brown ◽

David Young ◽

Stephen Smith ◽

Sytze Huizinga ◽

...

Keyword(s):

Hydrogen Sulfide ◽

Mild Steel ◽

Experimental Measurement ◽

Thermodynamic Calculation ◽

Room Temperature ◽

Steel Surface ◽

Saturation Degree ◽

Transitional Metal ◽

Dissolved Hydrogen ◽

Dissolved O2

The present work studies pit propagation in marginally sour environments and proposes a credible mechanism. Both thermodynamic calculation and experimental measurement confirmed that H2S can be oxidized by traces of dissolved O2 into SO42- and H+ in the aqueous solutions near room temperature with the transitional metal ions serving as a catalyst. This acidification phenomenon would be more effective near the steel surface, especially inside a pit, where Fe2+ ions are most abundant. Therefore, the saturation degree of mackinawite would be lower inside the pit, which would prohibit the pitting from annihilation.

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The damage mechanism of Alloy 690TT against Alloy 600 caused by fretting wear in room temperature pure water

Materials Characterization ◽

10.1016/j.matchar.2020.110176 ◽

2020 ◽

Vol 161 ◽

pp. 110176 ◽

Cited By ~ 2

Author(s):

Long Xin ◽

Qian Huang ◽

Yongming Han ◽

Yonghao Lu ◽

Weidong Zhang ◽

...

Keyword(s):

Room Temperature ◽

Pure Water ◽

Damage Mechanism ◽

Fretting Wear ◽

Alloy 600

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The fretting wear of mild steel from 200° to 500°C

Wear ◽

10.1016/0043-1648(74)90175-6 ◽

1974 ◽

Vol 30 (2) ◽

pp. 189-212 ◽

Cited By ~ 54

Author(s):

P.L. Hurricks

Keyword(s):

Mild Steel ◽

Fretting Wear

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Strain rate sensitivity of a mild steel at room temperature and strain rates of up to 105s−1

The Journal of Strain Analysis for Engineering Design ◽

10.1243/03093247v154201 ◽

1980 ◽

Vol 15 (4) ◽

pp. 201-207 ◽

Cited By ~ 5

Author(s):

M S J Hashmi

Keyword(s):

Finite Difference ◽

Mild Steel ◽

Strain Rate ◽

Strain Hardening ◽

Strain Rate Sensitivity ◽

Elastic Strain ◽

Room Temperature ◽

Numerical Technique ◽

Rate Sensitivity ◽

Strain Rates

Experimental results on a mild steel are reported from ballistics tests which gave rise to strain rates of up to 105 s−1. A finite-difference numerical technique which incorporates material inertia, elastic-strain hardening and strain-rate sensitivity is used to establish the strain-rate sensitivity constants p and D in the equation, σ4 = σ1 (1+(∊/D)1/ p). The rate sensitivity established in this study is compared with those reported by other researchers.

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