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    Materials Performance and Characterization: Electrical Analogy for Cavitation Erosion Test Results

    Published: July 01, 2015

    Electrical systems are analogous to many systems such as acoustic, fluidic, hydraulic, mechanic, magnetic, optic, pneumatic, and thermal systems.

    Journal article from Journal article from Journal of ASTM International vol iss 1 (ASTM International)

    Layer Growth Kinetics during Post-Discharge Nitriding

    Published: October 14, 2011
    Author(s): Joaquin Oseguera and Francisco Castillo

    A mathematical simulation of the evolution of nitrogen concentration profiles in iron samples is presented. The nitrogen concentration profiles are produced by a nitrogen microwave post-discharge. This mathematical model takes into account the nitrogen...

    Journal article from Journal of ASTM International vol 9 iss 2 (ASTM International)

    Influence of Surface Hardening Depth on the Cavitation Erosion Resistance of a Low Alloy Steel

    Published: August 04, 2011
    Author(s): S. Goulart-Santos, R. D. Mancosu, C. Godoy, A. Matthews, and A. Leyland

    In this paper, the influence of surface hardening depth promoted by plasma nitriding and Cr–Al–N coating deposition on the cavitation erosion resistance of a low alloy steel was investigated. Samples that were plasma nitrided for 2 and 4 h were produced and...

    Journal article from Journal of ASTM International vol 8 iss 9 (ASTM International)

    Effect of Plasma Nitriding on the Wear and Corrosion Properties of Hastelloy CW2M Alloy

    Published: July 11, 2011
    Author(s): Luiz Carlos Casteletti, Frederico Augusto Pires Fernandes, Stenio Cristaldo Heck, Carlos Alberto Picon, George Edward Totten

    Hastelloy C alloys are widely used in chemical and nuclear industries in corrosive environments. The predominant alloying elements of these nickel-based alloys are typically chromium and molybdenum, although other elements are added. Plasma nitriding is an...

    Journal article from Journal of ASTM International vol 8 iss 7 (ASTM International)

    Elements to Improve Galling Resistance Test Results Using the ASTM G98 Method

    Published: May 01, 2011
    Author(s): Scott R. Hummel

    The ASTM G98 Standard Test Method for Galling Resistance of Materials describes a relatively easy and quick method to screen materials for galling resistance. It has been used for several decades by material producers to report the galling resistance of their...

    Journal article from Journal of Testing and Evaluation vol 39 iss 3 (ASTM International)

    Efficient Tool Replacement Procedure Based on Yield Evaluation

    Published: May 01, 2011
    Author(s): Chen-ju Lin and W. L. Pearn

    Tool wear is an inevitable problem in many machining processes. The problem constitutes an inseparable component of variation and can be considered as a systematic assignable cause of process variability. Tool replacement should be initiated when the yield drops...

    Journal article from Journal of Testing and Evaluation vol 39 iss 3 (ASTM International)

    Corrosion Measurement Techniques in Steel Reinforced Concrete

    Published: May 01, 2011
    Author(s): A. Poursaee

    The main goal of this study was to evaluate different corrosion measurement techniques in order to determine the most accurate methods for measuring the corrosion rate of steel bars in reinforced steel concrete. For this purpose, reinforced concrete specimens...

    Journal article from Journal of ASTM International vol 8 iss 5 (ASTM International)

    Ranking of Materials’ Erosion Resistance and of Erosion Test Methods’ Intensity by the Transient Response Method

    Published: January 01, 2011
    Author(s): Y. Meged

    Modeling of cumulative erosion-time curves by the transient response method is based on the response curve of first-order servo systems to a step input. According to this model, it is possible to accurately model erosion-time curves by means of three parameters:...

    Journal article from Journal of Testing and Evaluation vol 39 iss 1 (ASTM International)

    Experimental Determination of Galvanic Anode Current Output for Common Geometries Used in Civil Works Applications

    Published: September 01, 2010
    Author(s): Charles P. Marsh and James B. Bushman

    The current output from various common galvanic (sacrificial) anode geometries used in immersion service was experimentally determined. The results showed a specific functional dependence on exposed surface area and a scalable inverse relationship to the...

    Journal article from Journal of Testing and Evaluation vol 38 iss 5 (ASTM International)

    Water Vapor Sorption Isotherms for Southern Pine Treated with Several Waterborne Preservatives

    Published: July 01, 2010
    Author(s): Samuel L. Zelinka and Samuel V. Glass

    Equilibrium moisture content (EMC) was measured over a range of relative humidities at 22.5°C to determine whether certain wood preservatives increase the hygroscopicity of southern pine (Pinus sp.) The treatments studied were alkaline copper quaternary...

    Journal article from Journal of Testing and Evaluation vol 38 iss 4 (ASTM International)