Hardening

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Hardening

1. The process by which a sudden change to the price of a commodity or futures contract slow and gradually corrects itself, bringing the price into alignment with fundamentals. See also: Reversion to the Mean.

2. A slow but steady rise in price for a futures market or contract.
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The book contains useful information on precipitation hardening and related topics.
1 Background--The strength profile for AlSiMg alloys with magnesium concentrations show a steep increase in yield strength through the precipitation hardening, a subsequent plateau with the final peak value, followed by a slow decrease in yield strength due to over aging, according to actual measurements and software simulations.
Maraging steels: modelling of microstructure, properties and applications covers the following topics: Introduction to maraging steels; Microstructure of maraging steels; Mechanical properties of maraging steels; Thermodynamic calculations for quantifying the phase fraction and element partition in maraging systems and precipitation hardening steels; Quantification of phase transformation kinetics in maraging steels; Quantification of age hardening in maraging steels; Maraging steels and overageing; Precipitation hardening stainless steel; Applications of artificial neural network on modelling maraging steel properties.
Microhardness distribution on various weld regions of the solid-solution aluminium alloys has shown more different behaviour than the precipitation hardening aluminium alloys [4, 11].
An aluminum-copper-scandium alloy possessing good strength at temperatures as high as 482F has been developed with this precipitation hardening method.

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