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boriding

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Published: 01 December 2016
Fig. 1.15 Geometry at αAl-substrate interface. (a) TiB 2 boride; (b) AlB 2 boride; (c) TiC carbide; (d) Al 3 Ti aluminide. Source: Ref 28 More
Image
Published: 01 November 2010
Fig. D.11 The lamellar constituent is a boride (M3B2) formed by incipient fusion. The two large crystals are metal carbide. Optical microscope, original magnification 1500×. Condition: As fabricated (as forged) Source: Ref 1 , 2 More
Image
Published: 01 September 2022
Fig. 9 Cross section of borided AISI 1040 steel; (a) micrograph at 900 °C (1650 °F) for 6 h; (b) an elemental depth profile indicating phases present from surface to core. B, boron; FeB, iron boride. Source: Ref 9 More
Image
Published: 30 April 2021
Fig. 9.18 Hard phases in a nickel-base hardfacing alloy (54 HRC) magnified 400×. A, chromium borides; B, Ni eutectic; C, nickel borides More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000025
EISBN: 978-1-62708-313-3
... phase and geometrically and topologically close-packed phases, and describes how superalloy microstructure can be modified via heat treatments and directional solidification. It also discusses the role of carbides, borides, oxides, and nitrides and the detrimental effects of sulfocarbides...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230117
EISBN: 978-1-62708-298-3
... Abstract This chapter discusses the synthesis of important beryllium compounds, including beryllium borides, beryllium carbide, beryllium carbonates, beryllium carboxylates, beryllium halides, beryllium hydride, beryllium hydroxide, beryllium nitrate, beryllium nitride, beryllium oxalate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900305
EISBN: 978-1-62708-358-4
..., and boride coatings that improve the performance of hot-work and high-speed tool steels. boride coatings chemical vapor deposition electron beam surface modification high-speed tool steel hot-work tool steel ion implantation laser beam surface modification nitriding oxide coatings physical...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2022
DOI: 10.31399/asm.tb.dsktmse.t56050001
EISBN: 978-1-62708-432-1
.... It discusses the mechanisms behind interstitial, substitutional, grain boundary, and surface diffusion, the derivation and use of Fick’s laws, and the basic principles of diffusion coating processes, including carburizing, nitriding, nitrocarburizing, cyaniding, carbonitriding, boriding, aluminizing...
Image
Published: 01 July 2009
Fig. 22.22 Effect of sputtering pressure on residual stresses in beryllium and beryllium boride (BeB) sputter-deposited films. RF, radio frequency; DC, direct current. Source: Hseieh 1988 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280025
EISBN: 978-1-62708-267-9
... in most cobalt-base alloys. Some carbide- and γ′-forming elements may contribute significantly to chemical properties as well. Borides may form in the iron-nickel-and nickel-base superalloys. Detrimental phases also form in the superalloys. Among these phases are σ, μ, and Laves. These phases are so...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350183
EISBN: 978-1-62708-315-7
... Fig. 14 Compares the abrasion resistance of TiN coatings applied by various thin-film processes Fig. 15 Compares the surface hardness of hardened tool steel and a cemented carbide with that of the following surface-hardening processes: TRD, CVD, PVD, boriding, chrome plating, electroless...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350095
EISBN: 978-1-62708-315-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000111
EISBN: 978-1-62708-313-3
... along certain crystallographic directions. If machining of the alloy is necessary, alloys with high carbon contents complicate the process, because carbides may form regardless of heat treatment and will reduce machinability. High boron and borides should be avoided for the same reason. The work...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280357
EISBN: 978-1-62708-267-9
... electron vacancy number of particular element n = number of elements in the matrix There was clearly a need in this type of calculation system to incorporate the effects of carbides, borides, and γ′ formation on the γ matrix composition from which the tcp is presumed to form. A plethora...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000139
EISBN: 978-1-62708-313-3
... Fig. D.11 The lamellar constituent is a boride (M3B2) formed by incipient fusion. The two large crystals are metal carbide. Optical microscope, original magnification 1500×. Condition: As fabricated (as forged) Source: Ref 1 , 2 Fig. D.12 Needles of sigma phase are longer and better...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2022
DOI: 10.31399/asm.tb.dsktmse.9781627084321
EISBN: 978-1-62708-432-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420289
EISBN: 978-1-62708-310-2
...-boride particles was desired. After consulting the B-Cr-Ni phase diagram, a series of samples having acceptable amounts of total chromium borides and chromium matrix were made and tested. Subsequent fine tuning of the composition to ensure fabricability of welding rods, weldability, and the desired...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850543
EISBN: 978-1-62708-260-0
... carbides Silicon carbide Borides of Hf, Nb, Ti, V, or Zr Tungsten boride Attack-polishing solution Slurry of chromic oxide abra- sive in water plus a few drops of Vi% aq. HF 10 g rouge abrasive 35 mL water 5 mL of 20% CrO, in water 2% CrO, in water Gamma alumina 5% CrO, in water 7-10% CrO, in water plus H...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170290
EISBN: 978-1-62708-297-6
... … … B, C, Zr, Hf Facilitates working … Ni 3 Ti … Retard γ′ coarsening … … Re (a) Not all these effects necessarily occur in a given alloy. (b) Hardening by precipitation of Ni 3 Ti also occurs if sufficient Ni is present. (c) If present in large amounts, borides are formed...