Results 211 to 220 of about 609 (259)

Nature of nonmetallic inclusions in alloy 58N

Metal Science and Heat Treatment, 1973
1. Alloy 58N, serially produced and used for manufacturing precision scales, is highly contaminated with nonmetallic inclusions, most of which are titanium nitrides and aluminum oxides. These inclusions make it difficult to obtain a high-quality mirror surface on scales, due to which the accuracy of precision machine tools decreases.
G. A. Tarnovskii, Yu. A. Gratsianov, V. P. Ovcharov, L. I. Yakukhina, S. N. Chirkova, L. P. Kulikova   +5 more
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Hydrogen embrittlement of steel with nonmetallic inclusions

Metal Science and Heat Treatment, 1973
1. Instead of the ductile cracks observed in the metal free of hydrogen, facets of quasibrittle fracture perpendicular to the tensile force are observed around nonmetallic inclusions in samples saturated with hydrogen. 2. Cracks of quasibrittle fracture are formed around large crystalline inclusions but not around sulfides in steel ...
V. P. Krylov, N. I. Vorob'eva
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Solidification, Segregation, and Nonmetallic Inclusions

2018
Abstract Many of the structural characteristics of steel products are a result of changes that occur during solidification, particularly volume contractions and solute redistribution. This chapter discusses the solidification process and how it affects the quality and behaviors of steel.
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Role of Nonmetallic Inclusions in Fatigue, Pitting, and Corrosion Fatigue

Corrosion, 1996
A study was conducted of the effect of nonmetallic inclusions on the fatigue and corrosion fatigue resistance of a high-strength steel in 0.6 M sodium chloride (NaCl) solutions. Results indicated that angular calcium-aluminate inclusions played an important role in introducing cracks during air fatigue cycling; however, sulfide inclusions appeared to ...
Wang, Y, Akid, R
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Nonmetallic Inclusions and Fracture Behavior of Steels

Journal of Basic Engineering, 1960
Some 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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Effect of nonmetallic inclusions on properties of cast steel

Soviet Materials Science, 1968
The result's of a study of the effect of nonmetallic inclusions on physicochemical and electrochemical properties of steel 45L are reported. A new (linear) method of determining the content of nonmetallic inclusions in steel, which makes it possible to determine also the shape of inclusions, was used.
Yu. A. Shul'te, V. P. Rudenko, A. A. Shalomeev, I. P. Volchok, A. B. Kuslitskii, V. V. Lunev   +5 more
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Method for evaluating the content of nonmetallic inclusions in steels

Metal Science and Heat Treatment, 1995
Methods for evaluating the content of nonmetallic inclusions in ShKh 15, ShKH5SG, and ShKh20SG steels used for rolling bearings are considered. These methods can be applied to other steels used for various parts that fail in operation due to fatigue spalling.
O. H. Chermenskii, V. V. Kovalev
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Influence of nonmetallic inclusions on the fatigue strength of metals

Materials Science, 2007
A 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, V. P. Sylovanyuk, N. A. Ivantyshyn   +2 more
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Nonmetallic inclusion distribution in centrifugal semifinished tubes

Metal Science and Heat Treatment, 1988
The 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, I. A. Pavperova, E. K. Ivan'ko   +2 more
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Nonmetallic Inclusions in Steel

2023
Zhang Lifeng, Xu Kuangdi
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