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continuous-cooling precipitation diagram

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Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006272
EISBN: 978-1-62708-169-6
... Abstract This article discusses the various methods for evaluating the quench sensitivity of aluminum alloys, namely, time-temperature-property diagrams, the quench factor analysis, the Jominy end-quench method, and continuous-cooling precipitation diagrams. It briefly describes the procedures...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003731
EISBN: 978-1-62708-177-1
... phase. Phase diagram configurations that give rise to precipitation reactions are shown in Fig. 1 . The reaction occurs when the initial phase composition (e.g., α 0 , β 0 , or I 0 ) transforms into a two-phase product that includes a new phase, or precipitate. The precipitate phase may differ in...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005962
EISBN: 978-1-62708-168-9
... standards. It describes the common phases and alloying elements present in copper precipitate-strengthened steels, and reviews the influences of alloying elements on processing, phase diagrams, microstructures, and mechanical properties. The article also discusses the thermomechanical process, solutionizing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003195
EISBN: 978-1-62708-199-3
... transformation diagrams, and continuous cooling transformation diagrams. The primary design criteria for heat treating of steels this article covers are the minimization of distortion and undesirable residual stresses. The article presents the theoretical and empirical guidelines to understand sources of common...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003723
EISBN: 978-1-62708-177-1
... describes the use of equilibrium binary phase diagrams as a tool in the interpretation of microstructures. It reviews an account of the two types of solid-state phase transformations: isothermal and athermal. The article discusses isothermal transformation and continuous cooling transformation diagrams...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003085
EISBN: 978-1-62708-199-3
... between the two-phase field and the solid field is the solidus. In general, a liquidus is the locus of points in a phase diagram representing the temperatures at which alloys of the various compositions of the system begin to freeze on cooling or finish melting on heating; a solidus is the locus of...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001434
EISBN: 978-1-62708-173-3
... stainless steel precipitation-hardening stainless steel Schaeffler diagram shielded-metal arc welding stainless steel welding STAINLESS STEELS can be defined as alloys that contain at least 10.5% Cr, no more than 1.5% C, and more iron than any other single element. There are five major families of...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001766
EISBN: 978-1-62708-178-8
... microstructure phase diagram precipitation recrystallization sample preparation weak-beam microscopy References 1. Murr L.E. , Electron Optical Applications in Materials Science , McGraw-Hill , 1970 2. Edington J.W...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006221
EISBN: 978-1-62708-163-4
... conditions for an alloy, which means that very slow heating and cooling rates are used to generate data for their construction. The equilibrium states that are represented on phase diagrams are known as heterogeneous equilibria , because they refer to the coexistence of different states of matter (gas...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005206
EISBN: 978-1-62708-187-0
... i L Phase diagram information can also be used in two simple models to describe the limiting cases of solidification behavior. For solidification obeying the lever rule at each temperature during cooling, complete diffusion is assumed in the solid as well as in the liquid. Thus, all phases...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006287
EISBN: 978-1-62708-169-6
... alloys increase hardness, with some decrease in ductility and little effect on corrosion resistance. In heat treatment, binary aluminum-magnesium alloys are not responsive to precipitation hardening, even though the binary aluminum-magnesium phase diagram has a positively sloping solvus (which is one...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005214
EISBN: 978-1-62708-187-0
... cooling rate. The diffusion process through the β-layer depends on the diffusion rate, the shape of the phase diagram, and the cooling rate. The thickness of the β-layer will normally increase during subsequent cooling. There are three reasons for this: Diffusion through the β-layer Precipitation...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006277
EISBN: 978-1-62708-169-6
... number of Burgers correspondence variants and orientation variants. The article also includes calculation of the transformation strain with contributions from defect structures developed at alpha/beta interfaces as a precipitates grow in size. In the CALculation of PHAse Diagram (CALPHAD) framework, the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003124
EISBN: 978-1-62708-199-3
... phase formation. alloying effect aluminum alloy phase diagram heat treatable aluminum alloy non-heat treatable aluminum alloy precipitation hardening strain hardening strengthening mechanisms THE PRINCIPAL CONCERNS in the physical metallurgy of aluminum alloys include the effects of...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003606
EISBN: 978-1-62708-182-5
... Abstract This article discusses the elements necessary for a galvanic cell operation. Detailed information on the possible corrosion reaction as a function of aqueous electrolyte concentration and pH, in the presence of certain ions, are provided using Pourbaix diagrams. A variety of...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006231
EISBN: 978-1-62708-163-4
... quite valuable in showing the phases that are present during equilibrium cooling and heating. They also show the temperatures at which the various phase changes occur. Fig. 5 Isopleth through hypothetical ternary phase diagram at a constant 40% C . Adapted from Ref 1 The single-phase...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006268
EISBN: 978-1-62708-169-6
... reversion, duplex annealing, and retrogression and re-aging are included. age hardening aging alloying aluminum alloys coherent precipitates precipitate-free zones semi-coherent precipitates ternary phase diagrams AGE HARDENING (or just aging) is the final step of the entire hardening or...
Book Chapter

Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006229
EISBN: 978-1-62708-163-4
... equilibrium compositions, X e * and X e **, on the free-energy curve ( Fig. 14b ) for temperature T ′. Fig. 14 Regions of spinodal decomposition and classical nucleation and growth of precipitates. (a) Phase diagram with a miscibility gap. (b) Variation in free energy with composition for the...
Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006222
EISBN: 978-1-62708-163-4
... Abstract This article begins with the one-component, or unary, diagram for magnesium. The diagram shows what phases are present as a function of the temperature and pressure. When two metals are mixed in the liquid state to produce a solution, the resulting alloy is called a binary alloy. The...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006274
EISBN: 978-1-62708-169-6
... can occur continuously and discontinuously. The amount of discontinuous precipitate depends on the cooling rate from the solution temperature and affects the mechanical properties, as illustrated in Fig. 9 . Higher cooling rates allow the aged material to be stronger and somewhat more ductile, and...