1-20 of 504 Search Results for

tungsten heavy alloys

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006125
EISBN: 978-1-62708-175-7
... of liquid-phase sintering of tungsten heavy alloys and describes the infiltration of tungsten and molybdenum for attaining full density. The article concludes by providing information on hot isostatic pressing of refractory metal alloys to full density. fully density processing hot isostatic pressing...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006133
EISBN: 978-1-62708-175-7
...Suggested milling and turning parameters for as-sintered tungsten heavy alloys Table 1 Suggested milling and turning parameters for as-sintered tungsten heavy alloys Properties Machining stage Roughing Finishing Tool material K10 inserts K10 inserts Edge condition Honed...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003166
EISBN: 978-1-62708-199-3
... Tungsten 19.3 Precious metals (gold, platinum, rhenium) 19.3–19.7 Density of lead = 11.35 g/cm 3 Typical properties for the tungsten heavy alloy W-4.9Ni-2.1Fe Table 3 Typical properties for the tungsten heavy alloy W-4.9Ni-2.1Fe Condition Ultimate tensile strength Elongation...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006123
EISBN: 978-1-62708-175-7
..., Mo-Re Lighting industry Lamp filaments W Halogen lamp sealing ribbon Mo, Mo-Y 2 O 3 -CeO 2 Halogen headlamp reflectors Mo Mandrel wire for filament production Mo, Mo-La WHAs, tungsten-heavy alloys; TZM, Ti-Zr-Mo alloy Mechanical and physical properties of pure...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003151
EISBN: 978-1-62708-199-3
... Solid-Solution Alloys Dispersion-Strengthened Tungsten Alloys Tungsten Heavy Alloys Fabrication of the common alloys is generally accomplished by high-temperature extrusion or forging near the alloy recrystallization temperature, which is typically 1095 to 1370 °C (2000 to 2500 °F). Secondary...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006033
EISBN: 978-1-62708-175-7
... (a) Scanning electron micrograph of a liquid-phase sintered tungsten heavy alloy (W-8.4wt%Ni-3.6wt%Fe) after quenching. (b) Grain-size model results taken from an integral work of sintering concept that includes only the thermal cycle (time-temperature path) to predict grain size for any point in a heating...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005502
EISBN: 978-1-62708-197-9
.... , Martin J.M. , Guo J.F. , Johnson J.L. , and German R.M. , Grain Growth Behavior of Tungsten Heavy Alloys Based on Master Sintering Curve Concept , Metall. Mater. Trans. A , Vol 37 , 2006 , p 3337 – 3343 37. Park S.J. , Martin J.M. , Guo J.F. , Johnson J.L...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006255
EISBN: 978-1-62708-169-6
... tungsten. The oxide additions significantly increase the recrystallization temperature. Tungsten heavy alloys, such as W-Ni-Fe, are pressed from elemental powders and liquid-phase sintered to full density in a hydrogen atmosphere furnace. They are susceptible to hydrogen embrittlement, but a postsinter...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002374
EISBN: 978-1-62708-193-1
... isostatically pressed Examples of the mechanical properties of tungsten heavy alloys sintered at 1500 °C to 100% density Table 6 Examples of the mechanical properties of tungsten heavy alloys sintered at 1500 °C to 100% density Composition, wt% Density, g/cm 3 Hardness, HRA Yield strength, MPa...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006122
EISBN: 978-1-62708-175-7
... and Applications of Hydrometallurgical Nickel Powders PM HIP UNS N06625 Flowmeter Bodies Future Use Carbonyl Production Plants Production Capacity for Carbonyl Nickel Powders Types of Carbonyl Nickel Powders PM Steels Hard Metals Diamond Tools Tungsten Heavy Alloys Salts and Chemicals...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006117
EISBN: 978-1-62708-175-7
...) for the sinter/HIP process without a can Fig. 14 Micrograph of a liquid phase sintered tungsten heavy alloy showing full density and grain shape accommodation. The material is a 95% W-3.5% Ni-1.5% Fe alloy sintered at 1470 °C for 2 h in hydrogen. The tungsten grains are etched for visual contrast...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006121
EISBN: 978-1-62708-175-7
... . Most tungsten scrap is recycled and constitutes a significant feed source. Sorted pure tungsten scrap can be crushed in high-energy mills and directly reused for applications with lower quality demands. Turning chips of tungsten heavy alloys can be converted into reusable powder by oxidation...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001079
EISBN: 978-1-62708-162-7
...-metal alloys bonded with copper, nickel, and iron are produced (see the section “Tungsten” in this article for additional information). For grinding tungsten, wheels of 60-grit silicon carbide or 46-grit alumina are recommended. Normal precautions, extra-light pressures, and heavy coolant flow...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003152
EISBN: 978-1-62708-199-3
... the manufacture, composition, classifications, and physical and mechanical properties of cemented carbides. It describes the application of hard coatings to cemented carbides by physical or chemical vapor deposition (PVD or CVD). Tungsten carbide-cobalt alloys, submicron tungsten carbide-cobalt alloys, and alloys...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001104
EISBN: 978-1-62708-162-7
...) Variation in abrasion resistance. (c) Variation in density. (d) Variation in compressive strength. (e) Variation in transverse rupture strength Fig. 7 Representative microstructures of steel-cutting grades of cemented tungsten carbide. (a) 85WC-9(Ta,Ti,Nb)C-6Co alloy, medium grain size. (b) 78WC...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001261
EISBN: 978-1-62708-170-2
... with an electrode. Cast iron, copper, steel, stainless steel, high-temperature nickel-base alloys, aluminum, and zinc are commonly plated by this method and exhibit good adhesion. Limited adhesion can be obtained with other materials, such as titanium, tungsten, and tantalum. Selective plating allows higher...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003295
EISBN: 978-1-62708-176-4
..., Paris , 1991 , p 645 – 652 42. Ramesh K.T. , On the Localization of Shearing Deformations in Tungsten Heavy Alloys , Mech. Mater. , Vol 17 ( No. 2–3 ), Elsevier , 1994 , p 165 – 173 43. Hartmann K.-H. , Kunze H.D. , and Meyer L.W. , Metallurgical Effects...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003180
EISBN: 978-1-62708-199-3
...), require a greater magnitude of force to form than iron- or nickel-base alloys. Most alloys that contain substantial amounts of molybdenum or tungsten for strengthening, such as alloy 230 or alloy 41 (UNS N07041), are harder to form than alloys containing lesser amounts of these elements. Alloys...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001313
EISBN: 978-1-62708-170-2
.... To remove the heavy oxide scale from tungsten, molybdenum, and their alloys, the molten caustic process is used. The molten caustic bath can be sodium hydroxide (NaOH) containing 0.5 to 3% sodium nitrite (NaNO 2 ), or it can be molten potassium hydroxide (KOH) containing 10% NaNO 2 . Individual plants may...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001441
EISBN: 978-1-62708-173-3
...Abstract Abstract Zirconium and its alloys are available in two general categories: commercial grade and reactor grade. This article discusses the welding processes that can be used for welding any of the zirconium alloys. These include gas-tungsten arc welding (GTAW), gas-metal arc welding...