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continuous cooling transformation diagram

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410197
EISBN: 978-1-62708-265-5
... Isothermal and continuous cooling transformation (CT) diagrams help users map out diffusion-controlled phase transformations of austenite to various mixtures of ferrite and cementite. This chapter discusses the application as well as limitations of these engineering tools in the context of heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... transformation and continuous cooling transformation diagrams that characterize the conditions that produce the various microstructures. It discusses the mechanism and process variables of quenching of steel, explaining the factors involved in the mechanism of quenching. In addition, the chapter provides...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740271
EISBN: 978-1-62708-308-9
... Abstract This chapter discusses the processes used in manufacturing to thermally alter the properties of metals and alloys. It begins with a review of the iron-carbon system, the factors that affect hardenability, and the use of continuous cooling transformation diagrams. It then explains how...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130601
EISBN: 978-1-62708-284-6
... Abstract This appendix is a collection of selected continuous cooling transformation diagrams for carbon steels; Mn steels; Mn-Mo, Mn-Ce, Mn-Ni-Mo, and Mn-Ni-CrMo steels; silicon steels; nickel steels; Ni-Cr-Mo steels; and chromium steels. Reference 1. From Atlas of Continuous Cooling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560029
EISBN: 978-1-62708-291-4
... isothermal transformation and continuous-cooling diagrams and how to recognize the effect of various alloying elements. alloying elements constitutional diagram continuous-cooling diagram isothermal transformation diagram phase transformations It has been established that a microscopical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410113
EISBN: 978-1-62708-265-5
... considerable recent attention. Identification, characterization, and classification of the various ferritic structures are based primarily on continuous-cooling-transformation (CCT) diagrams, examples of which are shown in Fig. 7.5 and 7.6 . Figure 7.5 shows the CCT diagram for an ultralow-carbon steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560221
EISBN: 978-1-62708-291-4
... - 1976 . 32. Atkins M. , Atlas of Continuous Cooling Transformation Diagrams for Engineering Steels , British Steel Corp ., Sheffield , 1977 ; revised U.S. edition published by American Society for Metals , Metals Park, OH , 1980 . 33. Transformation Diagrams of Steels Made...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410277
EISBN: 978-1-62708-265-5
... , 1998 13.6 Nakazawa K. and Krauss G. , Martensite and Fracture in 52100 Steel , Metall. Trans. A , Vol 9A , 1978 , p 681 – 689 10.1007/BF02659925 13.7 Atkins M. , Atlas of Continuous Cooling Transformation Diagrams for Engineering Steels , British Steel Corp...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240177
EISBN: 978-1-62708-251-8
..., there are heat treatments in which the steel is continuously cooled. Therefore, for industrial applications, continuous cooling transformation (CCT) diagrams are more useful than TTT diagrams. During continuous cooling, part of the time is spent at higher temperatures where the transformation rates are slower...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140083
EISBN: 978-1-62708-264-8
... of these constituents: isothermal transformation (IT) and continuous transformation (CT). Each technique has associated diagrams that are called IT diagrams and CT diagrams. (Note: Some people continue to prefer the use of the older names, time-temperature transformation (TTT) in place of IT and continuous cooling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410293
EISBN: 978-1-62708-265-5
... the austenite and producing large volume fractions of retained austenite in largely ferritic microstructures at room temperature. Figure 14.18 shows a continuous cooling transformation diagram for a nontraditional bainitic steel containing 0.35% C, 1.40% Mn, 0.76% Si, and 0.19% Mo ( Ref 14.25...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410163
EISBN: 978-1-62708-265-5
..., and billets that in turn require further hot work, as has also been illustrated in Fig. 2.2 in Chapter 2, “History and Primary Steel Processing.” Fig. 9.1 Schematic diagram of temperature-time schedules for primary processing of steel cast by various technologies The advent of continuous...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410099
EISBN: 978-1-62708-265-5
... Cooling Transformation Diagrams.” In plain carbon steels the transformation regions for proeutectoid ferrite/pearlite and bainite are more continuous and even overlap with decreasing temperature. In alloy steels, alloying elements may even cause the arrest of bainite transformation, causing incomplete...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430027
EISBN: 978-1-62708-253-2
... of diffusion, nucleation, and growth. It also discusses alloying, heat treating, and defect formation and briefly covers condenser tube materials. alloying elements austenitic stainless steels boiler tubes condenser tubes continuous cooling transformation diagram creep-resistant steels ferritic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130255
EISBN: 978-1-62708-284-6
... formation process for the alloy being studied. Two of the most commonly used transformation diagrams are the time-temperature transformation and continuous cooling transformation diagrams. Quenchant selection and quenching conditions are critically important parameters in quench...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400023
EISBN: 978-1-62708-258-7
... understanding of kinetics of ferrous phase transformations by transformations at constant temperature, practical heat treatments are carried out by heating and cooling at various rates. The same concepts developed by Bain can be used to develop continuous cooling transformation (CT) diagrams. These diagrams...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310163
EISBN: 978-1-62708-326-3
.... , Atlas of Continuous Cooling Transformation Diagrams for Engineering Steels , British Steel Corp. , 1977 ; Revised U.S. edition published by American Society for Metals , 1980 5. Maynier P. , Jungmann B. , and Dollet J. , Creusot-Loire System for the Prediction...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050139
EISBN: 978-1-62708-311-9
... of a high-speed quenchant is obvious. Also, fairly fast quenchants are used very effectively in some applications with alloy steel parts where the application involves shallow case depths or small areas to be hardened. Fig. 6.11 Continuous cooling transformation diagram illustrating the critical...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560309
EISBN: 978-1-62708-291-4
... by the temperature gradient established adjacent to the weld. This is determined essentially by the speed of movement of the weld pool and the configuration of the joint. The structures developed in these zones during cooling depend on the transformation characteristics of the steel and the cooling rate after...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500133
EISBN: 978-1-62708-317-1
... 27 K/s (49 °F/s) in the part must be achieved to avoid bainitic or even ferritic-pearlitic transformation, as shown in Fig. 7.4 . Fig. 7.4 Continuous cooling transformation diagram of 22MnB5 from Arcelor. A, austenite; B, bainite; F, ferrite; P, pearlite; M, martensite. Source: Ref 7.2...