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microconstituents

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Published: 01 November 2007
Fig. 17.3 Microconstituents present before and after quenching, illustrating the correlation between the temperature profile and the microconstituents. FM, fresh martensite More
Image
Published: 01 October 2011
Fig. 9.19 Microconstituents formed in plain carbon steels on rapid quenching from austenite into isothermal baths at the temperatures shown. Source: Ref 9.2 More
Image
Published: 01 March 2001
Fig. 8 Hardness of some carbides, minerals, and alloy microconstituents. In general, the harder the material or constituent, the higher the abrasion resistance More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560003
EISBN: 978-1-62708-353-9
...Definition of phases, microconstituents and critical temperatures in steels Table 2-1 Definition of phases, microconstituents and critical temperatures in steels Term Definition Austenite Designated by γ. Face-centered cubic iron with elements such as carbon and manganese dissolved...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140213
EISBN: 978-1-62708-264-8
... includes labels identifying the microconstituents that form in plain carbon steels under rapid quenching conditions. cementite iron-carbon phase diagram microstructure ...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320217
EISBN: 978-1-62708-332-4
... Abstract Steel is broadly classified as plain-carbon steels, low-alloy steels, and high-alloy steels. This chapter begins by describing microconstituents of low- and medium-carbon steel, including bainite and martensite. This is followed by a section discussing the effect of alloying elements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320031
EISBN: 978-1-62708-332-4
... Abstract This chapter discusses the crystal structures of steel and cast iron, the iron-iron carbide equilibrium diagram, microconstituents or phases in the iron-iron carbide phase diagram, the iron-carbon carbide-silicon equilibrium diagram of cast irons, and the influence on microstructure...
Image
Published: 01 December 1996
Fig. 2-13 Schematic illustration of the metallographic method used to determine at a fixed temperature the start and finish times of the formation of a microconstituent from austenite. In Fig. 2-14 are shown actual microstructures which would correspond to the letters shown on the schematic More
Image
Published: 01 September 2008
of microconstituents in D2 tool steel as a function of austenitizing temperature. Specimens austenitized for 30 min at temperature and oil quenched. Composition: 1.60% C, 11.95% Cr, 0.33% Mn, 0.32% Si, 0.79% Mo, 0.25% V, 0.18% P and 0.010% S. Source: Adopted from Ref 16 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930039
EISBN: 978-1-62708-359-1
... characterized, so specifications have not been established. Other problems arise where the potential exists for the formation of detrimental microconstituents and/or where the consequences of weld failure are severe. Welding of high-strength or brittle materials are typical examples. The microstructure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560307
EISBN: 978-1-62708-353-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140021
EISBN: 978-1-62708-264-8
..., and its description includes such things as grain size and shape and the identification of the microconstituents present. Microstructure is determined mainly with the optical microscope by examination of polished and etched surfaces. All of the important microconstituents of steel (the phases ferrite...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310173
EISBN: 978-1-62708-286-0
... as a danger and prevented. Stainless steel has lower thermal conductivity than carbon steels, which can cause it to retain heat from deformation and friction, thereby decreasing lubricity. Last, stabilized stainless alloys contain abrasive carbide microconstituents. The various types of stainless steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090317
EISBN: 978-1-62708-266-2
... aging. Overaging occurs above approximately 450 °C by cellular decomposition of the metastable microconstituents to the equilibrium phases. Overaged alloys are much less susceptible because of their lower strengths, their two-phase microstructures, and the complete relieving of quench-induced residual...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240075
EISBN: 978-1-62708-251-8
... by the eutectic microconstituent. In contrast, when the primary solid phase is the silicon-rich beta phase, as in the 20 and 50 wt% Si alloys, the primary crystals have geometric shapes due to the pronounced difference between aluminum, a metal, and silicon, which has predominately nonmetallic properties...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230199
EISBN: 978-1-62708-298-3
..., and 25 mL H 2 O) is satisfactory. 16.5 Identification of Constituents Table 16.4 lists descriptions of the appearance of the microconstituents in beryllium and beryllium-rich alloys. Many of these constituents are usually characterized by a variety of colors, and color microphotography has...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300199
EISBN: 978-1-62708-323-2
... the sharpest chef’s knives and scalpels because there are no other microconstituents that can chip out and thus create a jagged cutting edge ( Fig. 8.2 ); this concept often also applies to dies. Fig. 8.2 Homogeneous (a) and heterogeneous (b) microstructures in steels and how they would look in a knife...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140189
EISBN: 978-1-62708-264-8
... to the point where the hardness topped out at diamond pyramid hardness (DPH) = 800. Fig. 17.3 Microconstituents present before and after quenching, illustrating the correlation between the temperature profile and the microconstituents. FM, fresh martensite It is quite fascinating to observe...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440027
EISBN: 978-1-62708-262-4
... through production operations Measuring hardness of individual microconstituents Measuring hardness close to edges, detecting undesirable surface conditions such as grinding burn and decarburization Measuring hardness of surface layers such as plating or bonded layers Microhardness testing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900203
EISBN: 978-1-62708-358-4
... by retained austenite. Fig. 12-7 Retained austenite in hardened microstructures of D2 tool steel as a function of austenitizing temperature for hardening and cooling media. Source: Ref 12 Amounts of microconstituents in D2 tool steel as a function of austenltlzlng <italic>temperature...