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hexagonal systems

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240631
EISBN: 978-1-62708-251-8
... Abstract This appendix explains how to identify crystallographic planes and directions. It shows how Miller indices, a system for specifying crystallographic planes within a unit cell, are determined for cubic and hexagonal systems. It also explains how x-ray diffraction techniques are used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240625
EISBN: 978-1-62708-251-8
... Abstract This appendix explains how to calculate atomic packing factors, lattice parameters, and coordination numbers for cubic crystal structures, including simple, body-centered, and face-centered cubic systems. It also addresses hexagonal close-packed systems. atomic packing factors...
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
... structure, providing information on space lattices and crystal systems, hexagonal close-packed systems, and face-centered and body-centered cubic systems. The chapter then covers slip systems and closes with a brief section on allotropic transformations that occur at a constant temperature during either...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540357
EISBN: 978-1-62708-309-6
... = 1 or (Eq A1.1b) 1 a + 1 b + 1 c = h + k + l where h , k , and l are the simplest integers that define Miller indices ( h k l ) of the plane. Miller indices for planes in a cubic crystal are shown in Fig. A1.5 . In a hexagonal system...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310001
EISBN: 978-1-62708-326-3
... into one of three crystalline patterns: Face-centered cubic (fcc) crystal lattice ( Fig. 3 ) Hexagonal close-packed (hcp) crystal lattice ( Fig. 4 ) Body-centered cubic (bcc) crystal lattice ( Fig. 5 ) Table 1 Characteristics of the seven different crystal systems Crystal system...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240221
EISBN: 978-1-62708-251-8
... of these failure modes. Some body-centered cubic and hexagonal close-packed metals, and steels in particular, exhibit a ductile-to-brittle transition when loaded under impact and the chapter describes the use of notched bar impact testing to determine the temperature at which a normally ductile failure transitions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420363
EISBN: 978-1-62708-310-2
..., this is an even denser packing than that for the bcc structure. It occurs in many important metals such as aluminum, copper, and nickel. The fcc structure has a CN = 12. With 12 nearest atom neighbors, the fcc structure is the most efficient of the cubic structures. The hexagonal close-packed (hcp) system...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230131
EISBN: 978-1-62708-298-3
... application to date. Beryllium has been found to form intermetallic compounds with most metallic elements in the periodic table where the binary systems have been examined. Aluminum and silicon are exceptions. The family of beryllides, therefore, includes a large number of intermetallic compounds. Many...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230179
EISBN: 978-1-62708-298-3
... Abstract This chapter is a compilation of beryllium phase diagrams, representing more than 25 binary alloy systems from beryllium-aluminum to beryllium-zirconium. Each diagram is presented along with a summary and source reference. beryllium alloys binary phase diagram IMPORTANT...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2016
DOI: 10.31399/asm.tb.ascaam.t59190035
EISBN: 978-1-62708-296-9
..., Ni, Cr, V, Ti) and with metals such as Mg and Cu. This chapter is a compilation of phase diagrams, microstructure images, and tables, providing information on more than 30 binary, ternary, and quaternary alloy systems associated with intermetallic phases in aluminum-silicon castings. Each section...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480051
EISBN: 978-1-62708-318-8
... consists of 100% beta phase. The bcc crystal structure of the beta phase exists up to the melting point, which for pure titanium is 1670 °C (3038 °F). The dimensions between atom sites influence the properties of a crystal. In the hexagonal system, two dimensions are necessary to define the crystal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230163
EISBN: 978-1-62708-298-3
... Abstract This chapter discusses the composition, properties, and uses of the most common beryllium alloys and composites. It provides information on beryllium-aluminum, beryllium-copper, and beryllium-titanium as well as beryllium-antimony and beryllium-iron systems. alloying elements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870255
EISBN: 978-1-62708-314-0
... Composite Systems with Facesheets Reinforced with Kevlar Aramid Fiber and Kevlar with Carbon Fibers ,” E.I. DuPont de Nemours & Company • Moors G.F. , Arseneau A.A. , Ashford L.W. , and Holly M.K. , “ AV-8B Composite Horizontal Stabilator Development ,” 5th Conference...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720321
EISBN: 978-1-62708-305-8
... they have been subjected to some uniform cold work, such as rotary straightening for round material or planar type straightening for square, hexagonal, or flat sections. Gage straightened bars are not suited to inspection by permeability systems, because of nonuniform high stress concentrations wherever...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860035
EISBN: 978-1-62708-338-6
... Abstract This chapter discusses the ways in which the evolution of filament winding software systems has capitalized on the inherent flexibility of computer numerical controlled winding machines and enhanced their productivity. It provides a detailed discussion on different types of geometries...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120001
EISBN: 978-1-62708-269-3
..., body centered The two crystal structures of titanium are commonly known as alpha and beta. Alpha actually refers to any hexagonal titanium, pure or alloyed, while beta denotes any cubic titanium, pure or alloyed. The alpha and beta “structures”—sometimes called systems or types—are the basis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480095
EISBN: 978-1-62708-318-8
... orientation. Deformation also occurs by twinning, which is favored over slip by coarse grain size, high purity, and low-temperature deformation. With more slip systems available, the body centered cubic structure (beta phase) is more ductile than the hexagonal close packed structure (alpha phase...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270165
EISBN: 978-1-62708-301-0
.... Figure CH43.1 shows these parts. The bowl had a crack in the transition region at the head ( Fig. CH43.2 ) and also radial cracks at the top, originating from the corners of the hexagon ( Fig. CH43.3 ). The HP filter head had a circumferential crack about 45 mm in length, close to the outlet...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060013
EISBN: 978-1-62708-261-7
... hexagonal close-packed systems solid-solution alloys solidification ON A SATURDAY MORNING in 1906 somewhere in Germany, Dr. Alfred Wilm designed an experimental Al-Cu-Mg alloy and then heat treated it. Before lunch, Dr. Wilm asked his assistant, Jablonski, to run a quick hardness test on the alloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700135
EISBN: 978-1-62708-279-2
.... , “ Structure and Mechanical Properties of Fe-Mn Alloys ,” master’s thesis, McMaster University, July 2008 9.4 De Cooman B.C. , Chin K. , and Kim J. , High Mn TWIP Steels for Automotive Applications , New Trends and Developments in Automotive System Engineering , Chiaberge M...