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heat-resistant cast irons

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240453
EISBN: 978-1-62708-251-8
... elements such as chromium, molybdenum, and tungsten are used for this purpose. The addition of small amounts of tin (~0.1 wt%) is also effective in preventing ferrite formation. The heat resistance of cast irons can be increased by alloying with 18 to 20 wt% Ni and 2 to 3 wt% Cr. There are three groupings...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440207
EISBN: 978-1-62708-262-4
... flame hardening, a gray iron casting consists of a hard, wear-resistant outer layer of martensite and a core of softer gray iron, which during treatment does not reach the transformation temperature (in fact, the unhardened metal immediately below the hardened case, which has been heated by the flame to...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310331
EISBN: 978-1-62708-326-3
... hardness and strength Through hardening: heating, quenching, and tempering to provide the highest possible hardness and strength Surface hardening: flame, induction, or laser heating the surface of a casting to increase its wear resistance Most iron-casting producers would like to produce...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400001
EISBN: 978-1-62708-258-7
... austempered ductile iron have been introduced. This section examines each of these cast irons. Generally, the carbon and low-alloy steels come under a classification system based on composition. The higher-alloy steels (the stainless, heat-resistant, wear-resistant steels, etc.) can be...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300179
EISBN: 978-1-62708-323-2
... of malleable cast iron is machinability. It is said to be the metal that is easiest to machine. The downside of malleable iron is that heat treatment times can be long (up to 40 hours). Austempered ductile iron comes in different grades, and although they can have the same chemical composition as...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060247
EISBN: 978-1-62708-261-7
... ). The microstructure also can be modified by heat treatment. For example, heat-treated white irons are a class of abrasion-resistant cast irons with a microstructure of cementite and martensite ( Fig. 10.8 ). Fig. 10.7 Eutectic cementite (white) of an as-cast white iron with pearlite (gray). The...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140175
EISBN: 978-1-62708-264-8
... Abstract This chapter discusses the composition, properties, microstructure, grain formation, and fracture behavior of gray, white, ductile, and malleable cast iron and how these critical factors are affected when iron is heated to different temperatures prior to or during solidification...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220583
EISBN: 978-1-62708-259-4
... examines the growth mechanisms and structural details that set them apart. It also discusses the formation of compacted (vermicular) graphite and malleable iron, and compares and contrasts the composition, properties, and heat treatment of whiteheart and blackheart malleable types. chilled cast iron...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170062
EISBN: 978-1-62708-297-6
... alloying elements affect the properties, behaviors, and processing characteristics of ductile iron. The article describes the benefits of nickel and silicon additions in particular detail, explaining how they make ductile iron more resistant to corrosion, heat, and wear. corrosion behavior ductile...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170100
EISBN: 978-1-62708-297-6
.... This is due in part to the necessity of lengthy heat treatments for malleable iron and the difficulty in cooling thick sections rapidly enough to produce white iron. Malleable iron is still sometimes preferred for thin-section castings and parts that require maximum machinability and wear resistance...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170107
EISBN: 978-1-62708-297-6
..., metallurgist, and foundry worker cooperate to specify the composition, heat treatment, and foundry practice to develop the most suitable alloy and casting design for a specific application. The standard high-alloy white cast irons for abrasion-resistant applications fall into three major groups: The nickel...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170021
EISBN: 978-1-62708-297-6
... of Cast Iron at Elevated Temperatures , STP 248, ASTM , 1959 10.1520/STP248-EB 18. Angus H.T. , Cast Irons: Physical and Engineering Properties , Butterworths , 1976 , p 253 – 278 10.1016/B978-0-408-70933-0.50009-8 19. Hallett M.M. , Tests on Heat Resisting Cast...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170091
EISBN: 978-1-62708-297-6
... nickel on the tensile properties of CG iron measured on a 25 mm section size Heat treatment Iron matrix (a) Tensile strength Yield strength Elongation, % Hardness, HB Nickel, % MPa ksi MPa ksi As-cast 60% F 325 47.1 263 38.1 2.8 153 0 Annealed (b) 100% F 294 42.6...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560039
EISBN: 978-1-62708-291-4
... high-temperature heat treatments, and the effects of quench and strain aging. annealing ferrite low-carbon steels quench aging steel sheets steel strips strain aging Steels containing less than about 0.1% C and no significant alloying elements can conveniently be treated as a group...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080445
EISBN: 978-1-62708-304-1
... Abstract This appendix is a collection of tables listing the chemical compositions of wrought ferritic steels; wrought stainless steels; cast corrosion- and heat-resistant alloys; wrought iron-, nickel-, and cobalt-base alloys; cast nickel- and cobalt-base alloys; oxide-dispersion-strengthened...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240509
EISBN: 978-1-62708-251-8
... is a high-purity, corrosion-resistant composition. Finally, the fourth part, T6, denotes that the alloy is solution treated and artificially aged. The cold working (H) and heat treat (T) temper designations are essentially the same as those used for aluminum alloys. Since cast alloys are the most...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240547
EISBN: 978-1-62708-251-8
... nickel alloys. Corrosion- and heat-resistant nickel alloys include commercially pure and low-alloy nickels, nickel-copper alloys, nickel-molybdenum and nickel-silicon alloys, nickel-chromium-iron alloys, nickel-chromium-molybdenum alloys, and nickel-chromium-iron-molybdenum-copper alloys. Special nickel...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740047
EISBN: 978-1-62708-308-9
... during cooling and solidification. Gates are the channels through which liquid metal flows into the mold cavity. After the casting has solidified, it is cleaned, finished, heat treated, and inspected. References 1. Casting—General Introduction , Metals Handbook Desk Edition...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240095
EISBN: 978-1-62708-251-8
... using conventional investment casting procedures. These blades were then heat treated to coarsen the grain structures for enhanced creep resistance. Eventually, it became possible to produce directionally solidified (DS) structures with columnar grains oriented along the longitudinal axis of the blade...