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high-speed steels

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0089429
EISBN: 978-1-62708-223-5
... Abstract The failure of a high speed steel twist drill which caused injury to the user was investigated thoroughly to settle a legal suit. The drill was being used to remove a stud that broke in the vertical wall of a metalworking machine (upsetter) after drilling a pilot hole. The drill had...
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Published: 01 January 2002
Fig. 33 Examples of the microstructure of AISI M2 high-speed steel. (a) Desired quenched-and-tempered condition: 1200 °C (2200 °F) for 5 min in salt, oil quench, double temper at 595 °C (1100 °F). Etched with 3% nital. 500×. (b) Grain growth caused by reaustenitizing without annealing: 1220 °C More
Image
Published: 30 August 2021
Fig. 33 Examples of the microstructure of AISI M2 high-speed steel. (a) Desired quenched-and-tempered condition: 1200 °C (2200 °F) for 5 min in salt, oil quench, double temper at 595 °C (1100 °F). Etched with 3% nital. Original magnification: 500×. (b) Grain growth caused by reaustenitizing More
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001269
EISBN: 978-1-62708-215-0
... with a high sulfur content. Chemical analysis of high speed steel hob<xref rid="c9001269-tn1" ref-type="table-fn">(a)</xref> Table 2 Chemical analysis of high speed steel hob (a) Element wt% C 0.94 Mn 0.22 P 0.025 S 0.098 Si 0.28 Cu 0.12 Ni 0.26 Cr 4.17 Mo...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c9001250
EISBN: 978-1-62708-223-5
... Abstract A broken cross-recessed die was examined. Examination of the unetched, polished section for impurities revealed several coarse streaks of slag. The purity did not therefore correspond to the requirements set for a high speed tool steel of the given theoretical quality DMo 5. After...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
...-working and hot-working applications. It reviews problems introduced during mechanical design, materials selection, machining, heat treating, finish grinding, and tool and die operation. The brittle fracture of rehardened high-speed steels is also considered. Finally, failures due to seams or laps...
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Published: 15 January 2021
Fig. 6 Light micrograph showing stain (arrows pointing up) from the etchant (Vilella’s reagent) that seeped from the shrinkage gap (wide arrows pointing down) between the phenolic resin mount and the specimen of M2 high-speed steel More
Image
Published: 01 January 2002
Fig. 14 Light micrograph showing stain (arrows pointing up) from the etchant (Vilella's reagent) that seeped from the shrinkage gap (wide arrows pointing down) between the phenolic resin mount and the specimen of M2 high-speed steel More
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006818
EISBN: 978-1-62708-329-4
... that melted and deformed because of flame impingement during heat treatment. (a) End view. Original magnification: 4.5×. (b) Microstructure in the affected region. Etched with Marble’s reagent. Original magnification: 150× High-speed steel components are particularly susceptible to burning/localized...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001755
EISBN: 978-1-62708-241-9
... fatigue fracture misalignment tungsten alloy steel fatigue cracking optical microscopy hardness T1 tungsten high-speed steel UNS T12001 Copper-based bearing alloys Background The ball bearing assembly consisted of an inner race, an outer race, a cage, and balls. This bearing supported...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006826
EISBN: 978-1-62708-329-4
... a hole made in stainless steel with a dull drill bit. Original magnification: ~20× In another example, during holemaking a dull (1.5 mm, or 0.060 in., wear land) high-speed steel drill bit broke at the corner. A portion of the drill bit friction welded to the AISI 410 stainless steel workpiece...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001535
EISBN: 978-1-62708-232-7
... beach marks typical of spalling. Visually, the texture of the fracture surface showed a porcelain-like lusterless appearance, usually characteristic of high-speed steel ( Ref 7 ). A linear crack is observed running across the spalled area on to the working surface of the roll ( Fig. 2 ). It is, however...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001816
EISBN: 978-1-62708-241-9
... = 57 or L 0 = 30 mm (ASTM E21-05 standard). High temperature tension tests were conducted at different temperatures between 600 and 900 °C (50 °C intervals) and different crosshead speeds in order to define the temperature interval at which the steel would show a superplastic behavior. After...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0091048
EISBN: 978-1-62708-235-8
... Abstract A welded ferritic stainless steel heat exchanger cracked prior to service. The welding filler metal was identified as an austenitic stainless steel and the joining method as gas tungsten arc welding. Investigation (visual inspection, SEM images, 5.9x images, and 8.9x/119x images etched...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
... event, the designer should not overlook the possibility of misuse and improper maintenance on the part of the user. Example 1: Failure of a High-Speed Steel Twistdrill A 1.905 cm (0.75 in.) stud broke in the vertical wall of a metalworking machine known as an upsetter . A parallel vertical wall...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001499
EISBN: 978-1-62708-236-5
... Abstract Three spur gears made from 8622 Ni-Cr-Mo alloy steel formed a straight-line train in a speed reducer on a rail-mounted overslung lumber carrier. The gears were submitted for nondestructive examination and evaluation, with no accompanying information or report. Two teeth on one...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001725
EISBN: 978-1-62708-229-7
... Cracks. Magnification 2.5 × Fig. 5 Cross Sections Through Cracks, Respectively Normal and Transverse to the Axis of the Air Hole. Etched in 2% nital; magnification 100 × Chemical analysis showed the retaining ring to be a high-carbon, nickel-manganese-chromium steel of the following...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
... pressure, the bubbles can collapse suddenly. This collapse can cause surface damage through shock waves and microjets. Shock Waves Surrounding liquid that fills the cavity may have very high speed. When the cavity is reduced to a smaller dimension, pressure in the cavity is so high and the liquid...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001842
EISBN: 978-1-62708-241-9
... for Carbon Steel Pipe for High Temperature Service” [ 1 ]. This standard addresses material chemistry as well as mechanical properties. The standard also addresses permissible variations in wall thickness. Fig. 2 Schematic drawing of felt guide roll in operation, showing nominal dimensions...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001363
EISBN: 978-1-62708-215-0
... (0.75 in.). The bearing housings and the races were then cut using a high-speed grinder. As shown in Fig. 3 , the bearings exhibited signs of extensive plastic deformation and of reaching extremely high temperatures. The bearing materials were discolored, the races had deep, axially oriented grooves...