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wear resistance

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0047307
EISBN: 978-1-62708-223-5
... amount of retained austenite. This caused reduced wear resistance and thus rapid wear in service. Recommendations included avoiding an excessive austenitizing temperature and excessive cooling rates from the austenitizing temperature and controlling the chemical composition to avoid excessive...
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
... of sliding bearing bush failure in the process of operation have set the urgent tasks of finding the causes of failure and of increasing wear resistance and resistance to fatigue failure of a sliding bearing babbit bush. For this reason, the investigation described in this article was completed to determine...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003560
EISBN: 978-1-62708-180-1
... do not fracture as readily, and consequently, better abrasion resistance is obtained. Low-Stress, Or Scratching, Abrasion Low-stress, or scratching, abrasion occurs when lightly loaded abrasive particles impinge on, and move across, the wear surface, cutting and plowing it on a microscopic...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
... do not fracture as readily, and consequently, better abrasion resistance is obtained. Low-Stress, or Scratching, Abrasion Low-stress, or scratching, abrasion occurs when lightly loaded abrasive particles impinge on, and move across, the wear surface, cutting and plowing it on a microscopic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048253
EISBN: 978-1-62708-234-1
... of the carburized case and hence lower hardness) was found to be the reason for failure. It was recommended that the depth of the carburized case on impeller drive gears be increased from 0.4 to 0.6 mm to 0.6 to 0.9 mm to improve load-carrying potential and wear resistance. A minimum case-hardness requirement...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046371
EISBN: 978-1-62708-234-1
... had not seized, and there was no evidence of heat discoloration in the galled areas. The inner cone, made of modified 4720 steel and carburized for wear resistance, rode on an AISI type 630 (17-4 PH) stainless steel spacer. Consequently, it was desirable to determine whether the galled spots contained...
Image
Published: 01 January 2002
) A, interlaminar crack propagation; B, fiber cracking; C, fiber matrix debonding; and D, fiber fracturing. (a3) A, fiber fracturing; B, fiber matrix debonding. (b) Ideal composite for high abrasive wear resistance. L , normal load; V , velocity Source: Ref 32 More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001073
EISBN: 978-1-62708-214-3
... the original (and specified) material was medium-carbon 1045 steel. The low-carbon steel also had lower hardness because of a lower pearlite fraction in the microstructure. It was recommended that replacement sprockets be made of normalized 1045 steel. It was further suggested that wear resistance could...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001776
EISBN: 978-1-62708-241-9
... . Wear 268 ( 1–2 ), 202 – 207 ( 2010 ) 10.1016/j.wear.2009.07.010 7. Wiscers P.F. : In: Wiscers P.F. , Huskonen W.D. (eds.) Wear Resistant Steel, Steel Founders’ Society of America , 5th edn. , pp. 1 – 17 . Edwards Brothers Incorporation ( 1980 ) 8. Dieter G.E...
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
... polymers unidirectional FRP composites wear performance REINFORCED POLYMERS are used extensively in applications where resistance to adhesive and abrasive wear failure is important for materials selection. Polymers form a special class of materials because of their self-lubricity, which allows them...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047793
EISBN: 978-1-62708-217-4
... that the combined effect of vibration and abrasive wear by sand and metal particles removed from the splines damaged the shaft. Case hardened spline teeth surface was recommended to increase resistance to wear and abrasion. Case hardening Wear resistance Case-hardened steel Abrasive wear The fuel pump...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... of the material play an important role in adhesive wear. A high hardness (obtained by work hardening or heat and surface treatment), a stable oxide film on the contact surface, and material with a low surface shear resistance can provide improved resistance to adhesion ( Ref 27 ). Scoring Scoring...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... In the case of impacting bodies, the white layer builds up on the wear surface as impacts progress and becomes intensely work hardened. As a result, microcracks are easily nucleated within the white layer material ( Fig. 8a ). The path of least resistance along which the cracks can propagate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0047187
EISBN: 978-1-62708-225-9
... in peripheral speed. The microstructure at the periphery of a worn tooth at its unworn side ( Fig. 1b ) consisted of coarse acicular martensite with a large percentage of retained austenite. Parts with such a structure usually have a relatively low wear resistance because of low hardness. They are also very...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006794
EISBN: 978-1-62708-295-2
... strength and lower resistance to wear. Thus, wear can be considerably accelerated. Corrosion-induced surface imperfections and roughening can be precursors to microcracking. The degradation of materials under corrosion attack is often accompanied with surface imperfections such as pits and grooves...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
...) show, among all polymers, very high wear resistance. Extremely poor wear resistance is demonstrated by polymethyl methacrylate (PMMA), polystyrene (PS), and phenolic resin. Figure 4 shows worn surfaces of polyetheretherketone (PEEK) ( Ref 19 ) and UHMWPE ( Ref 20 ). These polymer surfaces show scars...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0065827
EISBN: 978-1-62708-221-1
... with superior properties was initiated. The nominal composition of Fe-0.50C-0.30Mn-0.40Si-5.00Cr-2.00Mo was developed which achieved the goals of edge retention, resistance to softening under frictional heating, wear resistance, ease of heat treatment, dimensional stability in heat treatment, grindability...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046378
EISBN: 978-1-62708-234-1
... finish of 0.15 to 0.2 pm (6 to 8 pin.). Wear resistance in service was extremely favorable, as shown by the sleeve at right in Fig. 1 , which was removed from a pump after 5190 h of service. Selected References Selected References • Hawk J.A. , Wilson R.D. , Danks D.R...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001530
EISBN: 978-1-62708-225-9
... in the increased microhardness of the matrix of the failed sample. However, evidently the effect of this strengthening did not lead to any improvement in the wear resistance of the failed bearing sample. The laboratory dry sliding wear tests also revealed a significant difference in wear rates of both samples...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001189
EISBN: 978-1-62708-218-1
.... Fig. 7 Hardness distribution from periphery to core on transverse sections of non-worn areas of gears 1 and 2 and of the unused gear 3. Such a nitride layer can increase the wear resistance and fatigue strength in cases of main friction. But it did not stand up to the high and one-sided...