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cobalt-base alloys

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048423
EISBN: 978-1-62708-226-6
...(a) shows a radiograph illustrating the broken prosthesis. The dislocation of the fragment of the prosthesis indicated the degree of loosening and implant loading. Fig. 1 Broken hip prosthesis of cast type ASTM F75 cobalt-chromium-molybdenum alloy. (a) Radiograph of total hip prosthesis. Circular...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0046966
EISBN: 978-1-62708-229-7
...Abstract Abstract A turbine vane made of cast cobalt-base alloy AMS 5382 (Stellite 31; composition: Co-25.5Cr-10.5Ni-7.5W) was returned from service after an undetermined number of service hours because of crack indications on the airfoil sections. This alloy is cast by the precision investment...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001281
EISBN: 978-1-62708-215-0
...Abstract Abstract The first-stage nozzles of a high-pressure turbine section of an industrial gas turbine exhibited leading and trailing-edge deterioration. The nozzles were made of X-40, a cobalt-base alloy, and were aluminide coated. Failure analysis determined that the deterioration...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001681
EISBN: 978-1-62708-234-1
.... 127 , p. 2202 ( 1980 ). 10.1149/1.2129375 16. Stringer J. and Whittle D. P. , “Hot Corrosion of Cobalt-Based Alloys” , Deposition and Corrosion in Gas Turbines , Wiley , New York , p. 197 ( 1973 ). 17. Meier G. H. , Birks N. , Pettit F. S. and Giggins...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001819
EISBN: 978-1-62708-180-1
...-chromium-molybdenum alloy: ASTM F 75-82, ISO 5832/IV (1978) Wrought cobalt-base alloys: ASTM F 90-82, ASTM F 562-84, ISO/DIS 5832/6, ASTM F 563-83, ISO/DIS 5832/8 Certain applications—for example, in the skull—involve use of tantalum and niobium, both of which have high corrosion resistance...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003570
EISBN: 978-1-62708-180-1
... erosion-resistant materials may be the only practical way to extend the life and decrease repair costs of affected equipment. Metals and alloys that are far more erosion resistant than the standard constructional materials described earlier are well known. The best of these, exemplified by cobalt-base...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
..., the term creep failure is used. For example, a creep failure of a cobalt-base alloy turbine vane is shown in Fig. 1 . The bowing is the result of a reduction in creep strength at the higher temperatures from overheating. Fig. 1 Creep damage (bowing) of a cobalt-base alloy turbine vane from...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... 300–390 0.48–0.54 T M Titanium alloys 315 600 0.3 T M Low-alloy steels 370 700 0.36 T M Austenitic, iron-base heat-resisting alloys 540 1000 0.49 T M Nickel- and cobalt-base heat-resisting alloys 650 1200 0.56 T M Refractory metals and alloys 980–1540 1800...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003539
EISBN: 978-1-62708-180-1
.... Notches, sharp corners, or preexisting cracks can also eliminate detectable stage I propagation in many metals. Similarly, some alloys (such as certain nickel base superalloys and cobalt base alloys) can display very extensive regions of propagation on specific crystallographic planes (so-called stage I...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
...-base superalloy 1040 1905 3 S-816 cobalt-base alloy 980 1795 3 Hastelloy X nickel-base superalloy 1205 2200 3 HX (17Cr-66Ni-bal Fe) 1150 2100 3 (a) Seamless tube. (b) Electric-resistance-welded tube General power plant classifications Table 2 General...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006776
EISBN: 978-1-62708-295-2
... corners, or preexisting cracks can also eliminate detectable stage I propagation in many metals. In contrast, some alloys (such as certain nickel-base superalloys and cobalt-base alloys) can display very extensive regions of propagation on specific crystallographic planes (so-called stage I propagation...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... thiocyanate/acetone Blue color Identify cobalt-base alloys Copper Dithizone Purple color Sort copper-bearing stainless steels Iron Potassium ferricyanide Blue precipitate Sort low-iron high-temperature alloys Lead Sulfuric acid White precipitate Sort leaded bronze Molybdenum Potassium...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
...-base superalloy 1040 1900 1 S-816 cobalt-base superalloy 980 1800 1 Hastelloy X nickel-base superalloy 1205 2200 1 HX (17Cr-66Ni-bal Fe) 1150 2100 1 (a) Seamless tube. (b) Electric resistance welded tube Melting points of common refractories Table 2...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001827
EISBN: 978-1-62708-241-9
... components made of various high-temperature-resistant alloys. Type I hot corrosion was observed on buckets and nozzles. Hot corrosion type I attacks both nickel- and cobalt-based superalloys, e.g., GTD 111 for buckets and FSX414 for nozzles. In the case of buckets, hot corrosion was observed in the form...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... alloys are used for the relatively cool components, such as those in the fan and low-pressure compressor sections. Nickel-base, iron-nickel, and iron-base heat-resisting alloys are used for “warm” parts, such as shafts, turbine disks, high-pressure compressor disks, and cases. Nickel-base and cobalt-base...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001829
EISBN: 978-1-62708-241-9
... oxidation thermal-barrier coated superalloys spalling microstructural analysis operating time ECY768 (cobalt-base superalloy) Co-Ni-Cr-Al-Y (cobalt-nickel-chromium-aluminum-yttrium alloy) Introduction The largest use of coatings on superalloys is on components in the hot gas section...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c9001610
EISBN: 978-1-62708-222-8
... stainless steel ISO 5832-1 Pure titanium ISO 5832-2 Wrought titanium 6-aluminum 4-vanadium alloy ISO 5832-3 Cast cobalt-chrome-molybdenum alloy ISO 5832-4 Wrought cobalt-chrome-tungsten- nickel alloy ISO 5832-5 Wrought cobalt-nickel-chrome- molybdenum alloy ISO 5832-6 Wrought cobalt...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
.... Adapted from Ref 107 Fig. 34 Potential drop obtained when fretting Ti-6Al-4V (IMI 318) titanium alloy in a saline solution. SCE, saturated calomel electrode Fig. 35 Evolution of the fretting wear response of an HS25 cobalt-base alloy versus temperature, k , wear rate versus fretting...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c0091757
EISBN: 978-1-62708-232-7
... not attacked because of the higher resistance to sulfidation of the alloy. Inconel 617 has lower nickel content and higher cobalt and molybdenum content. On-site testing was suggested, and test coupons of various alloys were installed before fabricating another kiln. The suggested alloys were RA85H, 800HT...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001367
EISBN: 978-1-62708-215-0
... and graph of a crack fracture surface. Base metal elements revealed that the impeller material was an AISI 4300 alloy steel. Element wt% at.% Silicon 0.27 0.53 Chromium 1.10 1.18 Manganese 0.88 0.89 Iron 96.40 96.12 Nickel 1.35 1.28 Scanning Electron...