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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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2008
Abstract Precipitation hardening is used extensively to strengthen aluminum alloys, magnesium alloys, nickel-base superalloys, beryllium-copper alloys, and precipitation-hardening stainless steels. This chapter discusses two types of particle strengthening: precipitation hardening, which takes place during heat treatment; and true ...
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Abstract Precipitation hardening is used extensively to strengthen aluminum alloys, magnesium alloys, nickel-base superalloys, beryllium-copper alloys, and precipitation-hardening stainless steels. This chapter discusses two types of particle strengthening: precipitation hardening, which takes place during heat treatment; and true ...
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Recent Advances in Solids/Structures and Application of Metallic Materials, 1997
Abstract A model/method was developed for predicting the precipitation hardening response of particle strengthened alloys hardened by ordered precipitates based on the microstructure, composition, and heat treatment, and utilizing a minimum number of experimental tests.
James M. Fragomeni, Ben M. Hillberry
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Abstract A model/method was developed for predicting the precipitation hardening response of particle strengthened alloys hardened by ordered precipitates based on the microstructure, composition, and heat treatment, and utilizing a minimum number of experimental tests.
James M. Fragomeni, Ben M. Hillberry
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Magnetic Precipitation-Hardening
Metal Science, 1975Abstract Co5Sm intermetallic compounds have recently been developed for permanent magnets with relatively high coercive fields (He ). Basically He is high because of the very large magnetocrystalline anisotropy (K 1) of these hexagonal crystals. Magnetization reversal in a reverse magnetic field apparently is not caused by rotational processes within ...
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Precipitation Hardening in Ceramics
1974The science of “heat treatment”, i.e., the control of microstructure by use of subsolidus reactions involving changes of composition or symmetry or both, and attendant improvement of properties, has received less attention in ceramic systems than in metallic systems.
A. H. Heuer, G. K. Bansal
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Aggregation and precipitation hardening in NaCl:Ca crystals
Physica Status Solidi (a), 1979The critical flow stress σ0 and the dielectric loss factor tg θ (representing the IV dipole concentration) are measured simultaneously at RT in Ca doped NaCl crystals after thermal treatment between RT and 150 °C. The two-step mechanism of dipole decay firstly investigated by Dryden could be confirmed for a wide range of Ca concentrations.
P. Grau, F. Fröhlich
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1973
We said in the introduction that metallic alloys have mechanical properties which are far more interesting than those of pure metals. By means of alloys we are enabled to manufacture machine parts which are lighter, or more resistant for the same weight, than those made from pure metals.
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We said in the introduction that metallic alloys have mechanical properties which are far more interesting than those of pure metals. By means of alloys we are enabled to manufacture machine parts which are lighter, or more resistant for the same weight, than those made from pure metals.
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Precipitation hardening in metals
Materials Science and Technology, 1999AbstractPrecipitation hardening has long been used to increase the strength of commercial alloys, such as quenched and tempered steels and the duralumin type aluminium alloys. The theoretical treatments of precipitation hardening are briefly considered.
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Precipitation hardening of aluminum alloys
Metallurgical Transactions A, 1975The author’s charge was to discuss recent trends in research and development on precipitation hardened aluminum alloys and to indicate where research is needed. This will be done for three areas: fatigue, properties of grain boundaries and interfaces, and stability of precipitates at elevated temperatures. Present strong precipitation hardened aluminum
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Investigation of a Precipitation Hardening Elinvar
Journal of Applied Physics, 1959In a nickel-iron-chromium alloy of the Elinvar type containing 2.5% titanium, it is possible to retain the titanium in solid solution by a quench from 1000°C. Aging at 600°C produces a nonmagnetic precipitate of an intermetallic compound (Ni3Ti) dispersed throughout the ferromagnetic matrix.
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