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hot ductility-related defects

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310155
EISBN: 978-1-62708-286-0
... ductility-related defects. melting refining remelting casting hot rolling hot mill defects inclusions hot ductility-related defects stainless steel Reference 1 Peckner D. and Bernstein I.M. , Handbook of Stainless Steels , McGraw-Hill , 1977 , p 3...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... deformable at typical hot working temperatures and retain their globular shape. Therefore, they are less injurious with respect to ductility, toughness, and fatigue life in finished wrought products. With the number and size of inclusions held roughly constant, inclusion shape control reduces the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050175
EISBN: 978-1-62708-311-9
... Jarvis Larry M. , Ind. Heat , reprint, Tenaxol Corp . Decarburization is a surface condition that is common to all hot-rolled steel products to some extent. It is produced during heating and rolling operations when oxygen in the atmosphere at temperature reacts with and removes carbon from...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220353
EISBN: 978-1-62708-259-4
... rates. It describes special cases of segregation, including banding and why it occurs, and the application of closed die forging. The chapter also presents several examples of hot working defects, including forging laps, cracks, and overheated or burned steel. closed die forging hot working...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140055
EISBN: 978-1-62708-335-5
... effect on cracks, shrinkage, and other defects that communicate to the casting surface. Fig. 6.1 Hot isostatically pressed cast aluminum brake caliper. Development of lower-cost HIP process alternatives since the 1990s is expanding its potential use into a broad range of applications, including...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140055
EISBN: 978-1-62708-335-5
... effect on cracks, shrinkage, and other defects that communicate to the casting surface. Fig. 6.1 Hot isostatically pressed cast aluminum brake caliper. Development of lower-cost HIP process alternatives since the 1990s is expanding its potential use into a broad range of applications, including...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.9781627083003
EISBN: 978-1-62708-300-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... Abstract This chapter addresses the issue of die failures in hot and cold forging operations. It describes failure classifications, fatigue fracture and wear mechanisms, analytical wear models, and the various factors that limit die life. It also includes several case studies in which finite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130503
EISBN: 978-1-62708-284-6
..., FHWA Contract DTFH61-97-0030, Aug 2003 47. Matsuda F. , Hot Cracking Susceptibility of Weld Metal , First U.S.-Japan Symposium on Weldability of Materials , AWS, JWS, and JWES , 1990 , p 19 – 35 48. Masumoto I. , Solidification, Blow Hole Formation and Cracking of Steel...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... inspection. Casting defects including porosity, oxide films, inclusions, hot tears, metal penetration, and surface defects are reviewed. Liquid penetrant inspection, magnetic particle inspection, eddy current inspection, radiographic inspection, ultrasonic inspection, and leak testing for castings are...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
... reactions release energy to the outside environment and thus create a lower-energy state for the material. Materials generally prefer to be in a lower-energy state, so exothermic reactions can (and will) take place spontaneously whenever the material is given the chance to do so. In general, hot...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280211
EISBN: 978-1-62708-267-9
.... Strengthening by precipitate particles is related to many factors; the intrinsic strength and ductility of the precipitate are most important factors, but there are other important factors, such as: Coherency of γ′ or γ″ precipitates with the γ matrix Antiphase boundary (APB) energy in the ordered γ...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740103
EISBN: 978-1-62708-308-9
... prior to hot working. The intermediate temperature region of low ductility shown in Fig. 3 can occur at temperatures that are sufficiently high for grain-boundary sliding to cause grain-boundary cracking but are not high enough for the cracks to be healed by dynamic recrystallization. The...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220129
EISBN: 978-1-62708-259-4
..., macro- and microsegregation, and hot cracking, as well as the effects of solidification and remelting on castings, ingots, and continuous cast products. It explains how to determine where defects originate in continuous casters and how to control alumina, sulfide, and nitride inclusions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... Abstract Superalloys tend to operate in environments where they are subjected to high-temperature corrosion, oxidation, and the erosive effects of hot gases. This chapter discusses the nature of these attacks and the effectiveness of various protection methods. It describes the primary forms of...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240279
EISBN: 978-1-62708-251-8
... of low ductility shown in Fig. 16.3 can occur at temperatures that are sufficiently high for grain-boundary sliding to cause grain-boundary cracking but are not high enough for the cracks to be healed by dynamic recrystallization. The advantages of hot working include: Flow stresses are...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280041
EISBN: 978-1-62708-267-9
... molds are most commonly used in superalloy production. The product may be hot-worked directly or, depending on the alloy solidification characteristics, consumably remelted to obtain a less segregated structure than that obtainable through direct casting. There are several significant...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720365
EISBN: 978-1-62708-305-8
...-resistant forgings are those related to scrap selection, melting, or primary conversion to bar or billet, or those that occur during forging or heat treatment. Tramp elements, such as lead or zinc, have been present in scrap charges at levels that have caused hot shortness and a degradation of hot tensile...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480243
EISBN: 978-1-62708-318-8
... characteristics of the metal generally require that cold forming be followed by hot sizing if high dimensional accuracy is to be achieved. Successful forming of titanium begins with careful preparation of the blanks. Surface and edge defects and oxygen-enriched surfaces must be removed to avoid cracking...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980417
EISBN: 978-1-62708-342-3
... container and the use of the correct hot working tool steels are important. Container mantles manufactured in the hot working steels 1.2323 and 1.2714 exhibit significant strength losses, apparently caused by production-related long-term tempering under thermal stresses. Incorrect preheating with excessive...