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Vickers hardness

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Published: 01 June 2019
Fig. 4 Low load Vickers hardness test with test load of 500 gf in the segregation region shown in Fig. 3 weaker etch than in Fig. 3 ). 200 × More
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Published: 01 June 2019
Fig. 9 Distribution of vickers hardness near the fractured surface. In the symbol I, the middle black point is the mean value of vickers hardness and standard deviation is indicated by the bar enclosed lines. More
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Published: 01 June 2019
Fig. 14 Shell position relative to the running surface in rail 5. Vicker's hardness readings show that shell forms at the interface of cold worked and soft material. More
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Published: 01 June 2019
Fig. 8 a). Proximity of blade end. Eroded inlet edge with hardened region and Vickers hardness indentations, transverse section, etch: V2A-solution. 10× b). Center of blade. Eroded inlet edge with hardened region and Vickers hardness indentations, transverse section, etch: V2A-solution. 10× More
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Published: 30 August 2021
Fig. 12 Effect of austenitizing temperature on structure of 1% C steel. (a) Quenched from 1000 °C (1830 °F). Coarse martensite plates (gray) and retained austenite (white). Vickers hardness of 745. (b) Quenched from 750 °C (1380 °F). Spheroidized carbides (white) in a fine martensite matrix More
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Published: 01 January 2002
Fig. 76 Stress-strain plots for samples of Ti-6Al-4V, with sample axes aligned in the three principal directions of the material. Vickers hardness values appear in the schematic of a block of material. Source: Ref 81 More
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Published: 15 January 2021
Fig. 76 Stress-strain plots for samples of Ti-6Al-4V titanium alloy with sample axes aligned in the three principal directions of the material. Vickers hardness values appear in the schematic of a block of material. Source: Ref 80 More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001228
EISBN: 978-1-62708-229-7
..., transverse section, etch: V2A-solution. Fig. 8 a). Proximity of blade end. Eroded inlet edge with hardened region and Vickers hardness indentations, transverse section, etch: V2A-solution. 10× b). Center of blade. Eroded inlet edge with hardened region and Vickers hardness indentations, transverse...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... surface finish, flat surface, and parallel sides Sample must fit within the machine and be balanced on the pedestal Vickers hardness Hardness Test is slow Careful surface preparation of the specimen is necessary Measurement of indentation is operator dependent and results in variation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001212
EISBN: 978-1-62708-235-8
... magnification. Fig. 1 Handle etched with 10% nital to show the flame hardened zone (dark). 1 × Fig. 2 Cracks running across the indentations caused by the tool during alignment. (Photographed with the TESSOVAR, Carl Zeiss. Oberkochen). 37 × The Vickers hardness was determined at a load...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001830
EISBN: 978-1-62708-241-9
... 0.2–0.35 0–0.04 0–0.04 0.45–0.7 0.8–1.15 0.5–0.65 0.25–0.35 Hardness and Microhardness Measurement To determine the hardness of the alloy, Vickers hardness measurements were carried out on several points from the outer surface to the central zone of the polished surface of the bolt...
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
... on hardening (coarse grain hardness cracks). The graphic representation of the results of low load hardness tests in Fig. 5 shows the differences in hardness between the segregation zone and the neighbouring fine acicular structure in Fig. 4 . Fig. 4 Low load Vickers hardness test with test load...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001142
EISBN: 978-1-62708-228-0
... structure of the fractured LPG cylinder, near the fracture (A), the opposite side of the fractured position (B). Fig. 8 Metallographic section of the flaw near the fracture. 4. Hardness Micro Vickers hardness was measured at the positions where the microstructure was investigated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048413
EISBN: 978-1-62708-226-6
... of the plate had a high degree of cleanliness ( Fig. 1d ). The deformation structure showed that the material was in the cold-worked condition, which was confirmed by Vickers hardness tests. Energy-dispersive x-ray analysis indicated a chemical composition corresponding to a type 316 stainless steel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048795
EISBN: 978-1-62708-220-4
... martensite. A Vickers hardness traverse (1-kg load) across a band showed average values of 507 on one side of the band, 549 within the band, and 488 on the other side. A microprobe scan across the banded area showed the following differences in chemical composition: 1.56% Mn outside the band, 1.94% within...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001185
EISBN: 978-1-62708-228-0
... structure ( Fig. 4 ). The transformed structure had a Vickers hardness (HV 0.2) of 733 to 773, compared with values of 447 to 463 for the unchanged tempered structure (cf. the hardness impressions in Fig. 4 ). Fig. 4 Microstructure in a cross-section through the origin of a crack, etched...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0092135
EISBN: 978-1-62708-222-8
.... For example, at a distance of 5 mm (0.2 in.) from the muzzle, the wall thickness varied from 1.3 to 2 mm (0.051 to 0.080 in.). The microstructure of the barrel material was a mixture of ferrite and coarse pearlite. The alloy had a hardness of 163 to 198 HB (converted from Vickers hardness measurements...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0089696
EISBN: 978-1-62708-220-4
..., 0.93% Mn, 0.023% P, 0.023% S, 0.53% Si, 0.044% Cu, 0.003% Sn, 0.50% Ni, 0.52% Cr, 0.20% Mo, 0.068% Al, and 0.003% V. Mechanical Properties Hardness Vickers hardness testing (500 g load) found the as-cast base metal to have readings of 215, 229, and 229 HV, for an average hardness of 224 HV...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0089459
EISBN: 978-1-62708-235-8
... in the light areas and 145 HB in the dark areas (converted from Vickers hardness readings, 100 g load). Examination at 320 diameters of sections through the rough-ground areas of the fractured rods established that the incipient cracks found in liquid-penetrant inspection had originated at the surface...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001089
EISBN: 978-1-62708-214-3
... analysis of the crosshead material identified a composition of 0.27% C, 0.93% Mn, 0.023% P, 0.023% S, 0.53% Si, 0.044% Cu, 0.003% Sn, 0.50% Ni, 0.52% Cr, 0.20% Mo, 0.068% Al, and 0.003% V. Mechanical Properties Hardness Vickers hardness testing (500 g load) found the as-cast base metal to have...