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Nonmetallic Inclusions and Fracture Behavior of Steels
Journal of Basic Engineering, 1960Some observations showing the adverse effects of certain kinds of nonmetallic inclusions on the strength and fracture behavior of alloy steel test specimens are presented. The observations pertain to the effects in tests at low and high temperatures and under steady and cyclic loading.
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Influence of nonmetallic inclusions on the fatigue strength of metals
Materials Science, 2007A model of growth of short fatigue cracks in the vicinity of nonmetallic inclusions in crystalline metallic materials is proposed. We establish the influence of inclusions on the fatigue strength of materials of this type. A conclusion is made that the inclusions whose typical size is smaller than the grain size exert practically no influence on the ...
V. V. Panasyuk +2 more
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Investigation of nonmetallic inclusions in high-speed steels
Materials Characterization, 1997Abstract The morphology, structure, and amount of nonmetallic inclusions in M2 high-speed steel and an experimental version modified with an addition of Al have been studied. The addition of aluminum to high-speed steel leads to an increase in nonmetallic inclusions, especially Al 2 O 3 and AlN. The morphologies of nonmetallic inclusions in M2Al are
Gongqi Shi, Shouze Zhou, Peidao Ding
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Nonmetallic inclusion distribution in centrifugal semifinished tubes
Metal Science and Heat Treatment, 1988The investigation of the nonmetallic inclusion distribution along the length of the tube was made in the center portion of specimens with an area of 400 mm/sup 2/ cut across the cross section of the casting. It is shown that in centrifugally cast semifinished tubes of 15Kh1M1F steel the nonmetallic inclusions accumulate primarily at the inner surface ...
G. S. Mirzoyan +2 more
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Microstrain distribution near the boundaries of nonmetallic inclusions
Metal Science and Heat Treatment, 1990Microstrains were measured on a flat alloy 35KhN3MF specimen using photographically superposed small-base scaling grids. The base of the grid 0.01 mm corresponds to the characteristic grain size, and the specimen deformation is 10.2%. The field of micro-strains was examined in the zone of three inclusions located in segments with local longitudinal ...
A. A. Vainshtein +2 more
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Rating of Nonmetallic Inclusions by Image Analysis
1975Image analysis has proved to be a reliable method for the rating of steel cleanness. One analysis gives information about the average content of oxides and sulfides, the existence of critical inclusions according to size, and by specific field counting information related to the macroscopic fraction of inclusions.
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Nonmetallic Inclusions in Hypereutectoid Steel
Industrial & Engineering Chemistry, 1923E. G. Mahin, G. B. Wilson
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Effects of Nonmetallic Inclusions on the Fatigue Strength of Metals
1990The equation for predicting the effects of artificial small defects on the fatigue strength of metals is introduced, and it is applied to evaluate quantitatively the effects of nonmetallic inclusions on the fatigue strength of high-strength steels. It is emphasized that the concept that nonmetallic inclusions are virtually equivalent to defects, from ...
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Titanium-bearing nonmetallic inclusions in manganese ferroalloys
Steel in Translation, 2010Petrographic data indicate the chemical and mineralogical composition, topography, and morphology of various titanium-bearing nonmetallic inclusions of the type TiS, MnS-TiS, TiS-α-SiC, and TiS-MnS-TiC, as well as nonstoichiometric titanium sulfides and titanium carbonitrides.
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