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isothermal stability 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: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420239
EISBN: 978-1-62708-310-2
... isothermal and vertical sections as well as liquid projections. It also explains how diffusion couples provide a window into local equilibria and identifies typical phase diagram construction errors along with problems stemming from phase-boundary curvatures and congruent transformations. phase...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420231
EISBN: 978-1-62708-310-2
... by Gibbs energy changes. It plots the energy of formation for many important metal oxides and explains how to construct isothermal stability diagrams to analyze complex reactions involving metals, alloys, and gases containing more than one reactive component. gas-metal systems isothermal stability...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420289
EISBN: 978-1-62708-310-2
... that manganese should be capable of replacing nickel because it stabilizes the γ-iron phase (austenite), and aluminum may substitute for chromium because it stabilizes the α-iron phase (ferrite), leaving only a small γ loop (see Fig. 14.2 and 14.3 ). Fig. 14.2 Two binary iron phase diagrams, showing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130285
EISBN: 978-1-62708-284-6
... are also provided. The cases covered are grinding cracks on steel cam shaft and transgranular and intergranular crack path in commercial steels. tempering steel mechanical test temper embrittlement hydrogen embrittlement liquid-metal embrittlement isothermal heat treatment grinding cracks...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420191
EISBN: 978-1-62708-310-2
...-D ternary plot, the information from the diagrams can be plotted in two dimensions by any of several methods, including the liquidus plot, the isothermal plot, and a vertical section called an isopleth. Fig. 10.2 Hypothetical ternary phase diagram. Binary phase diagrams are present along...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... information on the causes and characteristics of residual stresses, distortion, and quench cracking of steel. austenite transformation continuous cooling transformation diagram cooling rate distortion isothermal transformation diagram quench cracking quenchants quenching steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480075
EISBN: 978-1-62708-318-8
... to the right. This can be done by increasing the beta-stabilizing content, as illustrated in Fig. 4.15 . In this example, increased molybdenum content shifts the initial transformation of beta to alpha to longer times, or farther to the right, in the TTT diagram. Alpha stabilizers have the opposite effect...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240153
EISBN: 978-1-62708-251-8
.... The use of time-temperature-transformation (TTT) diagrams in understanding the phase transformations and the changes in the isothermal transformation curves due to the addition of carbon and other alloying elements are also discussed. isothermal phase transformations iron-carbide system ferritic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400023
EISBN: 978-1-62708-258-7
... (as in steels) and solidification (as in cast irons). The chapter describes how the development of the iron-carbon phase diagram, coupled with the understanding of the kinetics of phase transformations through the use of isothermal transformation diagram, were breakthroughs in the advancement of ferrous...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480031
EISBN: 978-1-62708-318-8
... diagrams, and sometimes as equilibrium diagrams, because an effort is made to show the phases that prevail under equilibrium or near-equilibrium conditions. Equilibrium is a term that implies a state of complete rest and stability in which no further changes can occur without the addition of energy from...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420263
EISBN: 978-1-62708-310-2
... phase diagrams phase equilibria PHASE DIAGRAMS have traditionally been determined purely by experimentation, which is costly and time consuming. While the experimental approach is feasible for the determination of binary and simple ternary phase diagrams, it is less efficient for the complicated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420041
EISBN: 978-1-62708-310-2
... Abstract This chapter explains how the principles of chemical thermodynamics are used in the construction and interpretation of phase diagrams. After a brief review of the laws of thermodynamics, it describes the concept of Gibbs free energy and its application to transformations that occur...
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
... confused. Most of the information in the chapter is of a practical nature, covering application-oriented topics such as isothermal transformation (IT) and continuous transformation (CT) diagrams which are used to predict and control the rate of formation of ferrite, pearlite, and bainite. The chapter also...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220101
EISBN: 978-1-62708-259-4
... and consolidation of the results of experiments. Alternatively, when thermodynamic data are available, phase diagrams can be calculated from these data ( Ref 5 , 6 ). Hence, the first classification of the effect alloying elements can have on steel (as seen in Chapter 1 ) is based on the stability...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480225
EISBN: 978-1-62708-318-8
... Fatigue ... ... ... Creep strength Improved Improved Improved Creep stability Same Same Same Fracture toughness Improved Improved Improved The emergence of the hot die and isothermal press forge capability significantly improved and expanded the parameter controls by which...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550299
EISBN: 978-1-62708-307-2
...-aluminum phase diagram, focusing on the properties, compositions, and microstructures of alpha-2 Ti3Al alloys. It then describes the properties, microstructures, and compositions of orthorhombic, gamma, and near-gamma alloys as well as the processing methods and procedures normally used in their production...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940023
EISBN: 978-1-62708-302-7
... at each electrode, accounting for different variables, mechanisms, and electrochemical effects. The chapter concludes with an in-depth review of Pourbaix diagrams, explaining what they reveal about the stability of metal-water systems and the formation of corrosion products. electrochemical cell...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
... are listed in Table 9.5 . The equilibrium iron-carbon phase diagram applies when temperature is held constant or when heating and cooling rates are slow enough to approximate equilibrium (isothermal) conditions. The extent and shape of cementite formation depends on the amount...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220273
EISBN: 978-1-62708-259-4
... edition , Vol 1 , ASM , 1990 17. Thelning K.E. , Steel and Its Heat Treatment—Bofors Handbook , Butter-worths , 1975 18. ASM , Atlas of Isothermal Transformation and Cooling Transformation Diagrams , ASM International , 1977 19. Bosch , Umwandlungsvorgänge und...