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allotropy

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440009
EISBN: 978-1-62708-262-4
... on transformations and on the classification of steels by carbon content. The chapter ends with a discussion on the effect of time on transformation and on the use of time-temperature-transformation diagrams. allotropy austenite-to-ferrite transformation carbon content commercially pure iron...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310029
EISBN: 978-1-62708-326-3
... allotropy of iron, which means that the iron atoms can arrange themselves into more than one crystalline form or phase. At room temperature, for example, iron atoms arrange themselves into a body-centered cubic (bcc) crystal structure—called ferrite or alpha (α) iron. At higher temperatures, the iron atoms...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420001
EISBN: 978-1-62708-310-2
... metals also have different crystalline structure as a function of temperature. For example, solid iron has different crystal structures (and magnetic properties) as a function of temperature. The physical change in the arrangement of iron atoms represents a phase change. Allotropy is the general term...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240003
EISBN: 978-1-62708-251-8
... Directions.” Depending on pressure and temperature, many metals can exist in more than one crystalline form, a phenomenon known as allotropy. The important metal iron undergoes a series of allotropic transformations during heating and cooling, as shown in Fig. 1.15 . Note that an allotropic...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.9781627083263
EISBN: 978-1-62708-326-3
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
... of its invariant melting point or temperature of allotropic transformation. As noted, heat spur and atomic diffusion can cause the atoms of some metals to rearrange themselves into different types of crystal lattices. This is referred to as an allotropy , and iron is an important example of an...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.9781627082914
EISBN: 978-1-62708-291-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440027
EISBN: 978-1-62708-262-4
... indentation it produces. Source: Ref 7 In Chapter 2, “Fundamentals of the Heat Treating of Steel,” two metallurgical phenomena—the allotropy of iron and the small size of the carbon atom—are described as key factors in the heat treatment of steel. Chapter 2 also discusses how carbon atoms exit...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420015
EISBN: 978-1-62708-310-2
... temperature and pressure, each unique structure constituting a distinctively separate phase. The term allotropy (existing in another form) is usually used to describe polymorphic changes in chemical elements. The important metal iron undergoes a series of allotropic transformations during heating and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230093
EISBN: 978-1-62708-298-3
... . “ Specific Heats of Beryllium and an Alloy at Room and Elevated Temperatures ,” Report LMSD-288140, Vol 2 , Lockheed Aircraft Corporation • McDonald R.A. , and Oetting F.L. , 1965 . The Thermodynamic Properties and Allotropy of Beryllium Chloride between 13 and 715 K , J. Phys. Chem...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230117
EISBN: 978-1-62708-298-3
.... , and Oetting F.L. , 1965 . The Thermodynamic Properties and Allotropy of Beryllium Chloride between 13 and 715 K , J. Phys. Chem. , Vol 69 ( No. 11 ), p 3839 10.1021/j100895a033 Moeller T. , 1957 . Inorganic Synthesis , 3rd ed. , McGraw-Hill, NY 10.1002/9780470132364...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.9781627082617
EISBN: 978-1-62708-261-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230523
EISBN: 978-1-62708-298-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.9781627082983
EISBN: 978-1-62708-298-3