1-20 of 29 Search Results for

grit size

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 Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... Grinding should commence with the finest grit size that establishes an initially flat surface and removes the effects of sectioning within a few minutes. An abrasive grit size of 180 or 240 in the American National Standards Institute/Coated Abrasive Manufacturers' Institute (ANSI/CAMI) grading system...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
... in an epoxy mount. Fig. 7 Good edge retention obtained in a cast epoxy mount containing soft ceramic shot filler (round particles in the epoxy at the top.) The specimen is annealed H13 hot work die steel etched with picral. Grinding should commence with the finest grit size that establishes...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
... wear resistant than those in the parallel (P) direction, which in turn, are better than those in the antiparallel (AP) direction. If the size of filler is smaller than the abrading grit, then the filler particle is easily dislodged and dug out. Fillers of medium size are most effective in this case...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0009222
EISBN: 978-1-62708-180-1
... grinding can crack almost any properly hardened tool. Common grinding faults include: Scorching, by removing metal too rapidly. Grinding with a dull or loaded wheel. Grinding with a wheel of grit-size too fine for the job. Ineffective use of coolant. Grinding technique is not always...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001837
EISBN: 978-1-62708-241-9
... , d ) on the surface of the sheet (magnification 50×) Samples were sectioned from the region containing cracks for macro-examination. Transverse face and capping face both were grinded up to 400 grit size and etched in 2% nital to reveal different regions of the weldment. Special care was taken...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001667
EISBN: 978-1-62708-235-8
.... This led to the concern that oxygen was introduced into the part during the welding procedure and caused alpha case formation of the surface of the titanium which could lead to detrimental part performance. Due to its size and value, a comprehensive on-site nondestructive microstructural analysis...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001059
EISBN: 978-1-62708-214-3
... had previously been noted in similar columns, and “belly bands” were applied tightly around these areas, effectively isolating them from further corrosion. The column had a 915 mm (36 in.) ID and measured 23 m (76 ft) in total length. Because of the size of the column, which did not permit...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001661
EISBN: 978-1-62708-229-7
... into the column flange, along the column side fusion line into the weld, or directly into the weld metal. Other discontinuities such as porosity were noted in several of the welds. The surface to be examined was prepared using the following materials: 180 grit silicon carbide 240 grit silicon carbide...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006766
EISBN: 978-1-62708-295-2
... the surface treatment is the focus of the analysis. The surface must be ground to a finish that is consistent with that of the quality-control standards and type standards used to produce valid data. An 80-grit finish or finer is typical. The spark-emission OES method requires a flat area that is free...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001600
EISBN: 978-1-62708-217-4
.... The samples were rough polished utilizing silicon carbide papers of increasing grit number, followed by fine polishing consisting of diamond paste and alumina. The samples were examined in the as-polished condition. No gross defects of inclusions were observed within the samples, with the exception...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006796
EISBN: 978-1-62708-295-2
... of various test materials in the terminal stage. The erosion surface is roughened by LDI and does not change much in the terminal stage. The SEM images show the similar grain-boundary shape of LDI erosion, regardless of the different wall materials, but the grain size changes with the material. Fig. 3...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001808
EISBN: 978-1-62708-180-1
... that can provide useful information. Whenever possible, the analyst should also compare shafts that are from machines in service but have not failed. Macroscopic Examination (from less than Actual Size to Approximately 50×) Many characteristic marks on fracture surfaces, though visually identifiable...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001753
EISBN: 978-1-62708-241-9
... and etched in order to view the microstructure through optical and scanning electron microscopy. Sample grinding was conducted with silicone carbide pads, from 240 through 1200 grit. Polishing was done with 1, 0.3, and 0.05 μm alumina powders, along with 4 and 1 μm diamond pastes. The sample was cleaned...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006810
EISBN: 978-1-62708-329-4
.... 20 Effect of size of fillet radius on stress concentration at a change in shaft diameter. See text for discussion Fig. 21 Graph of stress-concentration effects of different fillet radii on the stress-intensity factor, K Fig. 9 Images of a bearing and associated axle shaft...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001770
EISBN: 978-1-62708-241-9
... of 5×. Samples containing cracks were sectioned from the weld joint and base metal for macroexamination. The transverse face (cross section) and capping face were ground to a 400 grit finish and etched in glycerol aqua regia to reveal the crack morphology in different regions of the weldments. Figure...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006816
EISBN: 978-1-62708-329-4
... Correct posttreatment An important aspect of successful heat treatment is procedure qualification and process controls to ensure proper heating and cooling of a metal during heat treatment. The furnace must be of the proper size and type, and temperatures must be controlled within the prescribed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001608
EISBN: 978-1-62708-236-5
... in acid or grit blasting, and then left in that condition. Fig. 1 Red hills of hematite in Northwest Australia. Rust is iron (steel) reverting to nature. Photograph by David Dare Parker reproduced courtesy of Australian Geographic. Mill scale is said by some to confer a degree of corrosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001657
EISBN: 978-1-62708-227-3
.... The presence of abnormal temperature gradients along or across the airfoil section may be determined from changes in carbide, γ′ particle size and the matrix grain size in Ni-base superalloys [ 4 ] and from changes in matrix carbide particle size and grain size distribution in Co-base alloys. Because...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001809
EISBN: 978-1-62708-180-1
... film itself due to viscous shear. It is convenient, then, to supply filtered lubricant to keep the contact areas reasonably clean. The effect of contaminants in bearings depends on the hardness of the contaminant, the number of such particles, and their size. In general, most dirt, usually SiO 2...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006759
EISBN: 978-1-62708-295-2
... or ground with 60-grit grinding paper. ICP-OES requires chips for acid digestion. Qualitative methods require subjective judgement by an experienced user to interpret the data and the results are not considered accurately quantifiable. Some methods allow for the results to be easily manipulated or biased...