1-20 of 204 Search Results for

rapid melt quenching

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006260
EISBN: 978-1-62708-169-6
... Abstract Quenching refers to the rapid cooling of metal from the solution treating temperature, typically between 465 and 565 deg C (870 and 1050 deg F) for aluminum alloys. This article provides an overview on the appropriate quenching process and factors used to determine suitable cooling...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005944
EISBN: 978-1-62708-166-5
...” ( Ref 3 ). Molten lead is used for patenting of steel wire and for austempering. Due to the toxicity and disposal problems with lead, it is seldom used in the thermal processing of steel. However, because lead possesses a high thermal conductivity and no film-boiling stage, it provides relatively rapid...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006286
EISBN: 978-1-62708-169-6
... quenching medium after solution treatment of most titanium alloys, because rapid cooling is required. When a hot part is immersed in water, excessive heat will vaporize water instantly, forming a continuous vapor blanket around the part, particularly during the early stages of quenching. Depending on the...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005226
EISBN: 978-1-62708-187-0
... microstructure solidification heat flow noncrystalline phases diffusional kinetics RAPID SOLIDIFICATION is a tool for modifying the microstructure of alloys from that obtained by ordinary casting. Three general classes of processing methods that may produce such changes are shown in Fig. 1 : 1) melt...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005285
EISBN: 978-1-62708-187-0
... associated with chips, borings, turnings, flash, and so on and the subsequent entrainment of the oxide surfaces with the melt, other forms of direct melting of these materials are coming into greater favor, especially those with mechanical or molten-metal pump-assisted devices designed for rapid submergence...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005197
EISBN: 978-1-62708-187-0
... material. The effects of various inadvertent alloys and tramp elements should be understood, and control ranges and maximum levels should be established. Rapid analysis by modern spectrometers makes it possible to monitor any number of trace element levels. Any scrap source contributing excessive...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005929
EISBN: 978-1-62708-166-5
... first type uses atmosphere austenitizing followed by salt quench and the second type employs austenitizing salt baths with rapid transfer to the quench salt. The article provides a detailed account on the construction, advantages and disadvantages, and limitations of isothermal quenching furnaces...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005924
EISBN: 978-1-62708-166-5
... Abstract Induction heating has many different applications, such as melting, heating stock for forging, and heat treating. This article begins with a discussion on the types of power supplies, namely, solid-state power supplies and oscillator tubes. It provides information on system elements...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005402
EISBN: 978-1-62708-196-2
... equilibria. The article summarizes a rapid method to obtain a thermodynamic description of a multicomponent system. It also provides information on thermodynamically calculated phase diagrams. phase diagram binary stable phase equilibria partition coefficients phase diagram modeling A PHASE...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
... Abstract Engineered components fail predominantly in four major ways: fracture, corrosion, wear, and undesirable deformation (i.e., distortion). Typical fracture mechanisms feature rapid crack growth by ductile or brittle cracking; more progressive (subcritical) forms involve crack growth by...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003204
EISBN: 978-1-62708-199-3
... for the load to reach temperature. The times shown are based on rapid heating, with soak time measured from the time the load reaches a temperature within 6 °C (10 °F) of the applicable temperature. (d) By suitable control of extrusion temperature, product may be quenched directly from extrusion...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006287
EISBN: 978-1-62708-169-6
... also discusses the mechanisms used for strengthening aluminum alloys, including solid-solution hardening, grain-size strengthening, work or strain hardening, and precipitation hardening. The process of precipitation hardening involves solution heat treatment, quenching, and subsequent aging of the as...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005932
EISBN: 978-1-62708-166-5
... considered when selecting the proper quenching procedure. Several factors are involved in the mechanism of quenching, which, for the purpose of this section, is defined as rapid cooling. These factors include: Internal conditions of the workpiece that affect the supply of heat to the surface...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006275
EISBN: 978-1-62708-169-6
.... Small amounts of arsenic have particularly strong effects on the age-hardening response of such alloys, and these effects are enhanced by solution treating and rapid quenching prior to aging. An investigation ( Ref 1 ) was conducted on the effects of additions of 0.15% As on the age-hardening behavior...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003175
EISBN: 978-1-62708-199-3
... accompanied by an increase in hydrogen content of the melt. Inert gas degassing treatments must be used in this case. Because the silicon eutectic can also be modified by rapid cooling rates, foundries that pour thin-section castings (that solidify rapidly) often do not add modifiers to their melts. When...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003174
EISBN: 978-1-62708-199-3
... properties of gray irons is described in detail in the Section “Cast Irons” in this Handbook. If the cooling rate of the liquid at the eutectic temperature is very rapid, as in thin sections, the eutectic liquid will undercool substantially and solidify rapidly. If the solidification rate is too rapid...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003065
EISBN: 978-1-62708-200-6
... batch will melt, fine, and homogenize. It is important to consider the particle size distribution of each available material and its match or mismatch with other available materials, as well as the addition of minor ingredients to promote rapid melting and fining. In soda-lime-silica compositions, this...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005334
EISBN: 978-1-62708-187-0
... and the difficulty of recovering such metal. In the fluxless method, the amount of sludge at the bottom of the crucibles is greatly reduced. The earlier procedure of superheating the melt to 870 to 925 °C (1600 to 1700 °F) followed by a rapid cooling to process temperature is no longer popular or...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005230
EISBN: 978-1-62708-187-0
.... The objective of the quench is to rapidly cool the alloy before any of the dissolved solutes can precipitate out. In addition, rapid quenching results in high vacancy concentration in the matrix. Vacancy concentration plays a vital role in the subsequent aging step. In general, high vacancy...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003239
EISBN: 978-1-62708-199-3
..., because of the availability of infrared sensing systems, thermal inspection can also provide rapid, noncontact scanning of surfaces, components, or assemblies. Thermal inspection does not include those methods that use thermal excitation of a test object and a nonthermal sensing device for inspection...