File Name: heat treatment structure and properties of nonferrous alloys .zip
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The reader should understand at the outset that this chapter is intended to present only an overview of the heat treating of nonferrous alloys. First, a brief discussion of the effects of cold work and annealing on nonferrous alloys is presented. This is followed by discussion of the mechanisms involved in the more common heat treating procedures used for hardening or strengthening—solution treating and aging. No attempt is made in this treatise to cover the more complex procedures required for duplex structures which characterize some nonferrous alloys, notably titanium and copper alloys. For more complete information on the heat treating of nonferrous alloys and the properties that may be obtained, see Metals Handbook , Vol 4, 9th edition, American Society for Metals, , and Heat Treatment, Structure and Properties of Nonferrous Alloys , by Charlie R. Brooks, American Society for Metals, Most metals and metal alloys ferrous and nonferrous respond to hardening from cold work.
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Heat treating or heat treatment is a group of industrial , thermal and metalworking processes used to alter the physical , and sometimes chemical , properties of a material. The most common application is metallurgical. Heat treatments are also used in the manufacture of many other materials, such as glass. Heat treatment involves the use of heating or chilling, normally to extreme temperatures, to achieve the desired result such as hardening or softening of a material. Heat treatment techniques include annealing , case hardening , precipitation strengthening , tempering , carburizing , normalizing and quenching. Although the term heat treatment applies only to processes where the heating and cooling are done for the specific purpose of altering properties intentionally, heating and cooling often occur incidentally during other manufacturing processes such as hot forming or welding.
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Source Heat Treatment, Structure and Properties of Nonferrous Alloys, p 22, Full size image. In this example, hardness of the alloy was.