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matrix smears

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030043
EISBN: 978-1-62708-349-2
... materials for microscopic analysis, there are many types of artifacts that can result from any of the steps, from rough grinding to final polishing. In the grinding and polishing steps, common artifacts that may be created include scratches, fiber pull-out, matrix smears, streaks, erosion of different...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030067
EISBN: 978-1-62708-349-2
... polish. When working with a sample of a staged prepreg composed of a soft matrix, it is difficult to prevent erosion of the matrix. In the preparation of an unstaged prepreg sample, the resin is so soft that the objective is not to smear it but to remove the resin from the place it is located. The result...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130087
EISBN: 978-1-62708-284-6
... etching time in a heated acid solution to reveal permanent twisting on the original cylindrical surface. Another possible source of confirmation that this is a ductile crack is the classical smear features on the fracture face. It has been argued that these smeared features could be a result...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120123
EISBN: 978-1-62708-269-3
... 120 °C (250 °F) but, at lower pH values, crevice corrosion sometimes is encountered below this temperature. Although frequently interpreted as a pitting phenomenon, smeared surface iron pitting of unalloyed titanium in hot brines appears to be a special case of crevice corrosion. It results when...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130043
EISBN: 978-1-62708-284-6
... the threads. The fracture mode was microvoid coalescence (Ref 9) , which occurs by the following process: A free surface is created from a small particle. This particle can be a second-phase particle, dispersoid, or inclusion. The separation of the metal matrix from the small particle at the matrix...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870235
EISBN: 978-1-62708-314-0
... to the possibility of recontaminating the surface. All composite surface treatments should have the following principles in common: (1) the surface should be clean prior to abrasion to avoid smearing contamination into the surface; (2) the glaze on the matrix surface should be roughened without damaging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860019
EISBN: 978-1-62708-338-6
..., –α} angleply laminate with thickness t . The stiffness matrix of a single layer is ( Ref 3.7 ): (Eq 3.8) S 0 = [ E 1 1 − ν 12 ν 21 ν 12 E 1 1 − ν 12 ν 21 0 ν 12 E 1 1 − ν 12 ν 21 E 2 1...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000167
EISBN: 978-1-62708-312-6
.... In the event such treatments become necessary, extreme caution must be exercised to avoid smearing as well as contamination of surfaces with less noble metals. If carried out in a contamination-free environment, surface polishing can lead to enhanced corrosion resistance of PM stainless steels in the same...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400169
EISBN: 978-1-62708-258-7
... the ferrite is smeared and heavily cold worked. The ferrite grains should appear clean, as indicated by some of the nonetching ferrite grains shown in the micrograph (see white arrow). In this case, the heavy pressure created an unacceptable degree of surface deformation, particularly in a softer matrix...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300421
EISBN: 978-1-62708-323-2
... such as ASTM International B584 alloy C94300 (71 Cu, 5 Sn, 24 Pb) can be used against hard steel for intermittent-type use. The lead is insoluble in the copper matrix, and it is thought to smear on rubbing surfaces to act as a lubricant. Testing may be necessary before committing to unlubricated tribosystems...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120085
EISBN: 978-1-62708-269-3
... films, but the surface was pitted by the wire tips. To avoid pitting, softer wire bristles were tried. The surface of the titanium acquired a burnished appearance, surface layers were cold worked, and grinding scratches, instead of being removed, were filled with smeared metal. These conditions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480141
EISBN: 978-1-62708-318-8
... cooling, followed by hydrogenating in a sodium hydride bath at 400 °C (750 °F) for 4 h. Etchant: 10%HF-25%HNO 3 , 45%glycerine-20%H 2 O. Original magnification: 500× Fig. 7.28 Ti-8Mn sheet. Alpha appears in a beta matrix after heating at 650 °C (1200 °F) for 1 h, furnace cooling to 480 °C (900...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410253
EISBN: 978-1-62708-280-8
... Blending or smearing to hide defects is not allowed Handling damage Max. depth =1.0 mm Max. width = 2.5 mm Max. length = 25.0 mm Parting plane flash Max. height = 2.0 mm (0.08 in.) Max. width = 2.0 mm (0.08 in.) Mold, coat flakes Within dimensional tolerances All castings...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270031
EISBN: 978-1-62708-301-0
... a Failure Mode, Effects and Criticality Analysis ,” Department of Defense , Washington, D.C. 31. Collins J.A. , Hagan B.T. , and Bratt H.M. , The Failure-Experience Matrix—A Useful Design Tool , J. Eng. Ind. (Trans. ASME) , Vol 98 , 1976 , p 1074 10.1115/1.3439009 32...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980141
EISBN: 978-1-62708-342-3
.... , Metal-Matrix Composites with Aluminium Matrix: Advanced Aerospace Materials , Springer-Verlag , 1992 , p 108 – 118 [See 85]: Seeger A. , Kristallplastizität. Handbuch der Physik (Handbook of Physics) , Springer-Verlag , Berlin , VII/2, p 1 – 210 10.1007/978-3-642-45890-3_1 [Sel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770199
EISBN: 978-1-62708-337-9
... plastic deformation and smearing to a depth of about 10 μm. In extreme cases, smearing can produce laps or the heavily worked layer can rupture or even spall. In either case, there is damage that can develop into something more serious during service. If the temperature rise accompanying deformation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000005
EISBN: 978-1-62708-312-6
... to have high-chromium-containing Fe-Cr-Ni alloys in the austenitic form over wide ranges of temperatures, including room temperature. The large substitutional nickel atoms diffuse very slowly in the ferrous matrix, and hence, the phases present at room temperature are not predictable from the equilibrium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870537
EISBN: 978-1-62708-314-0
... (96%Al 2 O 3 –4%SiO 2 ) (b) >98% SiC (c) Transverse rupture strength of bulk material. Source: Ref 2 Properties of continuous-fiber aluminum matrix composites Table 20.2 Properties of continuous-fiber aluminum matrix composites Property B/6061 Al SCS-2/6061 Al (a) P100...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220069
EISBN: 978-1-62708-259-4
... as an appearance of a “smeared” surface are other possible effects in samples that have residual work hardening from the polishing operations. Figure 5.3 presents a schematic representation of how these remains of deep scratches may persist in the material. Fig. 5.3 Schematic presentation of subsurface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610055
EISBN: 978-1-62708-303-4
... of the sudden release of energy. Fracture surfaces frequently are rubbed or pounded against each other, causing rub marks, abrasion, dents, smearing, or other scars of postfracture damage. It is not unusual for much of the fracture surfaces to be obliterated, so that microscopic examination as discussed...