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Hardening curves for materials with strain hardening
Russian Engineering Research, 2016Experimental hardening curves are plotted for the analysis of the cutting process in strain-hardening materials. As examples, approximate formulas for specific carbon steels are presented.
L. D. Olenin, M. A. Lekveishvili
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Steels with controlled hardenability for induction hardening
Metal Science and Heat Treatment, 1980Steels of the CH and LH type developed in the Soviet Union permit the use of a new method of induction hardening — bulk-surface hardening — and efficient utilization of the high-strength conditions (σb = 230–250 kgf/mm2). These steels make it possible to improve the structural strength, operating characteristics, service life, and reliability of ...
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1996
Abstract The crux of this chapter is to develop a method to quantitatively define hardenability. The chapter includes the empirical methods to estimate the hardenability knowing the chemical composition, describes prior austenite grain size, and examines their utility.
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Abstract The crux of this chapter is to develop a method to quantitatively define hardenability. The chapter includes the empirical methods to estimate the hardenability knowing the chemical composition, describes prior austenite grain size, and examines their utility.
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A model comprising work hardening and solid solution hardening
Physica Status Solidi (a), 1978In a former paper the problem of solid solution hardening and work hardening of solid solutions was treated for the case of two types of obstacles with relative concentrations xs and xw, and strengths ƒs and ƒw. The resolved shear stress can be formally written as τ2/(Gb/l0)2 = τ(ƒs, ƒw, xs, xw) where G and b have their usual meaning and l0 denotes ...
G. J. Den Otter, R. Vetter
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Hardening the surface of austenitic steels by strain hardening
Metal Science and Heat Treatment, 19711. The carrying capacity in terms of permissible stress (σ0, 2) of steels Kh18N10T and Kh21N5AG7 under conditions of uniaxial static tension increases 50% down to −253° as the result of surface hardening. 2. For hardened steels Kh18N10T and Kh21N5AG7 σ b n /σn > 1 and σ b n /σ0.2 > 1 with Kt=3.0 in the range of 20 to −253° C. 3.
D. V. Lebedev, B. M. Ovsyannikov
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Proceedings of the 20th ACM International Conference on Modelling, Analysis and Simulation of Wireless and Mobile Systems, 2017
As mobile and multi-homed devices are becoming ubiquitous, the need for a dynamic, yet secure communication protocol is unavoidable. The Host Identity Protocol (HIP) was constructed to meet this requirement; to provide significantly more secure mobility and multi-homing capabilities.
Adel Fuchs +2 more
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As mobile and multi-homed devices are becoming ubiquitous, the need for a dynamic, yet secure communication protocol is unavoidable. The Host Identity Protocol (HIP) was constructed to meet this requirement; to provide significantly more secure mobility and multi-homing capabilities.
Adel Fuchs +2 more
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Surface hardening of precipitation-hardening nonmagnetic steels
Metal Science and Heat Treatment, 19731. Precipitation-hardening nonmagnetic steels of the Fe−Mn−Ni system can be surface hardened by nitriding and also by work hardening of the surface. Surface layers with an elevated hardness to a depth of 0.3 mm can be obtained by nitriding of high-strength nonmagnetic steel 40G14N9Kh3YuF2. The results of comparative wear resistance tests showed that
V. M. Blinov +4 more
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Work hardening of dispersion-hardened crystals
Philosophical Magazine, 1966Abstract A new theory of work hardening in dispersion-hardened single crystals—by which we mean soft crystals containing hard non-deforming particles of a second phase—is described. It is based on the fact that, if the particles do not deform plastically, and the interface between particle and matrix does not fracture, then secondary slip must occur ...
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2016
Definition of hardenability. Factors influencing depth of hardening. Determination of hardenability. Calculation of Jominy curves from chemical composition. Application of hardenability concept for prediction of hardness after quenching. Hardenability in heat treatment practice.
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Definition of hardenability. Factors influencing depth of hardening. Determination of hardenability. Calculation of Jominy curves from chemical composition. Application of hardenability concept for prediction of hardness after quenching. Hardenability in heat treatment practice.
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Strain Hardening and ‘Strain-Rate Hardening’
1982The limitations of power-law strain hardening and ‘strain-rate hardening’ descriptions are reviewed. It is found that significant advantages can be gained by using, instead, the Voce relation, especially in the proposed modification that accounts for the rate sensitivities of flow stress and of strain hardening.
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