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Brinell hardness testing

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001760
EISBN: 978-1-62708-241-9
...</xref>, <xref rid="c9001760-ref3" ref-type="bibr">3]</xref> Brinell hardness tests with 250 Kg force and a steel indentor with 5-mm diameter were performed with 15 s interval on the specimen surface. The locations are shown in Figs. 8 and 9 , and the results are listed in Table 3 . It should be mentioned that the average hardness...
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
... but is generally used as a pass/fail evaluation Hardness testing Macroindentation hardness testing Rockwell hardness Hardness Need smooth surface finish, flat surface, and parallel sides Sample must fit within the machine and be balanced on the pedestal Brinell hardness Hardness Need smooth...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001468
EISBN: 978-1-62708-221-1
... in the photograph. A specimen for microscopical examination was taken from the origin of the major crack—marked A in the illustration. The material was a mild steel in the normalised or annealed condition, having a carbon content of approximately 0.3%. Brinell hardness tests gave values of 174–179, indicative...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001462
EISBN: 978-1-62708-224-2
.... The contour of the surface of the link suggested that a slight depression was present in the region from which the crack started. Fig. 4 Location of fracture with respect to flash weld. (×5). The results of Brinell hardness tests showed: Link material 170–187 Heat-affected zone adjacent...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001428
EISBN: 978-1-62708-224-2
... to destruction in a tensile testing machine. At a maximum load of 11.5 tons, failure occurred at the junction of the screwed portion with the underside of the collar, this location being similar to that at which, it is understood, the eyebolt failed in service. The results of Brinell hardness tests...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0089676
EISBN: 978-1-62708-224-2
... along the grain boundaries and within the grains. Note the similarity of the microstructure in Fig. 1(g) to that in Fig. 1(d) . Brinell hardness tests performed on the link adjacent to the fracture surface yielded values of 415 HB for the web section and 363 HB for the flange; many fine cracks were...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
... 58 HRC, resistance to pitting fatigue is reduced, and the possibility of brinelling (denting) of bearing raceways is increased. Because hardness decreases with increasing operating temperature, the conventional materials for ball and roller bearings can be used only to temperatures of approximately...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0048077
EISBN: 978-1-62708-221-1
... and tempered to a hardness of 302 to 352 HRB and all machining discontinuities were removed. Brinell hardness Fatigue strength Magnetic particle testing Radii 1040 UNS G10400 Fatigue fracture The 14-cm (5 1 2 -in.) diam main hoist shaft of a mobile shovel was found to have multiple...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c9001154
EISBN: 978-1-62708-223-5
... fatigue stresses in the drop forge. The second piston rod of 120 mm diam consisted of a steel with 0.25% C and 1.00% Mn. It allegedly had 57 kp/sq mm tensile strength and 26% elongation. The basic structure of the 120 mm piston rod was ferritic-pearlitic and hardness of 155 Brinell was accordingly low...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001449
EISBN: 978-1-62708-221-1
... of the plate had served as the point of initiation. The fracture surface was bounded by narrow lips, indicative of shear failure. The welds were not of a pronounced convex form, nor was severe undercutting present. The Brinell hardness of the material was 118, indicating an ultimate tensile strength...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
... damage are false Brinelling , which is applied particularly to bearings where the craters caused by the vibration of the ball against the race are circular and resemble Brinell impressions, and “fitting rust,” where gages or shims are clamped together and experience vibration. The terms fretting...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001771
EISBN: 978-1-62708-241-9
... the precipitate composition. Brinell hardness test was used to evaluate mechanical strength. Results and Discussion Visual Examination Figure 1 shows visual photography of four specimens. As can be seen in this figure, the unused and unfailed tube did not show any special effect ( Fig. 1a , b...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001813
EISBN: 978-1-62708-180-1
... of failures of springs that occur solely as the result of faulty design is comparatively small. However, there are occasional exceptions. For example, one of a test set of titanium alloy Ti-13V-11Cr-3Al torsionally stressed compression springs failed by fatigue after 12 × 10 6 cycles at a maximum stress...
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
... that the foundry used before shipping the castings consisted of casting, normalizing, preheating plus weld repair, normalizing, quenching and tempering, drawing to the required Brinell hardness, and nondestructive testing (dry magnetic particle). The crossheads were subsequently machined in-house by the customer...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001134
EISBN: 978-1-62708-214-3
... in.). An estimated conversion to Brinell hardness suggested that the material was harder than the value recommended for safety (302 to 352 HB). Microhardness values <xref rid="c9001134-tn1" ref-type="table-fn">(a)</xref> Table 1 Microhardness values (a) Distance from edge Knoop hardness Brinell...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006836
EISBN: 978-1-62708-329-4
... extensive grain flow from cold working in the brinelled areas. The general microstructure was fine-grained, tempered martensite of good quality. There was no surface decarburization. Chemical analysis identified the spring material as 6150 steel. The hardness of the material was 49.5 to 51 HRC...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006834
EISBN: 978-1-62708-329-4
... of micrometers. Added to these are the high levels of quality-control and nondestructive testing tools, techniques, and methodologies put in place to continuously monitor and perform multiple checks under very high production volumes. The overall production process is so strictly defined and controlled...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001533
EISBN: 978-1-62708-225-9
... electron microscopy methods were used (Neofot 32 (Carl Zeiss Jena Gmbh, Germany) and JSM 840, (JEOL Corp., Tokyo, Japan) respectively). Mechanical tests, of the specimens were performed using the Instron universal dynamometer (Instron Corp., Canton, MA). Brinell hardness was determined with a hardness...
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
... steel casting was specified. The manufacturing sequence that the foundry used before shipping the castings consisted of casting, normalizing, preheating plus weld repair, normalizing, quenching and tempering, drawing to the required Brinell hardness, and nondestructive testing (dry magnetic particle...