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Typical fatigue spall of AISI 9310 and M50NiL test gears. Speed, 10 000 rpm; maximum ... AISI 9310 and M50NiL in rolling-contact fatigue tester. Maximum ...

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19910018255_1991018255.pdf

M50-NIL bearings. CBS 600 bearings o Standard bearings are existing designs ...... and M50-NiL should be evaluated further to determine their advantages ...

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900014958_1990014958.pdf

with M50 and M50 NiL materials commonly used in the aviation gas turbine engine industry. ... type of WEB was found in M50 NiL. Braza, et al. attributed the ...

http://www.informaworld.com/index/917254368.pdf

M50NiL and that contact stress has a significant effect on the spall ... 9—Spall propagation trend curves for new indented 52100, M50, and M50NiL at 2.10 ...

http://www.informaworld.com/index/917253976.pdf

M50Nil and RBD, 34 nonmetallic inclusions effect on material behavior, 211 ... M50 and M50NiL steels carbon distribution in steel parts, 61 carburizing, 61 ...

http://www.astm.org/DIGITAL_LIBRARY/STP/SOURCE_PAGES/STP40181S_index.pdf

M50 NiL, 178-86 measurement, 58-63 micro-alloyed. 140-52 micro-structure degradation, 140-52 microcrack, 234-40 microstructure, 178-86. Mobil Jet 1I, 214-23 ...

http://www.astm.org/DIGITAL_LIBRARY/STP/SOURCE_PAGES/STP41660S_index.pdf

M50 and M50NiL steel.2) Under hoop stress of 30 ~ 38 ksi ... it was shown that a fatigue crack in M50NiL at 280 MPa hoop stress propagates negligibly. ...

http://www.tec.nsk.com/weblibrary/library/Products/bearings/MC07-03 Inner Ring Fracture Characteristics Under Rolling Contact.pdf

by S Lacey - Cited by 1

http://www.tec.nsk.com/weblibrary/Library/Products/bearings/MC05-01 Bearings for Aircraft Turbine Engines (1 of 2).pdf

in an M50NiL bearing steel with a fixed carbon content of ... carbide and the ferrite matrix in the M50NiL alloy was. (cementite) phase. ...

http://www.springerlink.com/index/L0217266Q01R7272.pdf

idently divided into two classes, one is M50NiL and ... M50NiL steel has the highest thermal stability and belongs to the secondary-hardening steel type. ...

http://www.springerlink.com/index/TW00232J68096822.pdf

VIM CRU 20 M50 M50 NiL Si. 3. N. 4. HRC 67 HRC 62 HRC 62. A: All VIM VAR 52100 Balls and Raceways. B: Hybrid Bearings with Si3N4 Balls and CPM VIM CRU 20 ...

http://www.crucibleservice.com/datash/dsvimcru20.pdf

element vanadium is essential in the detection of M50 and M50 NiL alloys. .... that some damage was occurring to the #4 M50 NiL bearing. Figure 4. ...

http://www.spectroinc.com/Collateral/Documents/English-US/RFSA-04- F110 BEARING .pdf

The element vanadium is essential in the detection of M50 and M50 NiL bearing alloys. In addition to RDE/AES and RF/AES capability for wear metal, ...

http://www.spectroinc.com/Collateral/Documents/English-US/RFSA-05-HELICOPTER MAIN XMSN .pdf

AMS 6278 (M50 NiL). CSS-42LTM. AMS 6490 (M50). AMS 5618 (AISI 440C). FIGURE 2. Hot hardness of case carburized CSS-42L™ and comparative alloys (direct ...

http://www.latrobesteel.com/assets/documents/datasheets/CSS-42L_extended.pdf

AMS 6278 (M50 NiL). AMS 6490 (M50). AMS 5618 (AISI 440C). Figure 2: Hot hardness of case carburized. CSS-42L and comparative alloys. (Direct ...

http://www.latrobesteel.com/assets/documents/datasheets/CSS-42L_summary.pdf

M50 NiL. 300 ksi. 52100. 278 ksi. AFRL Rig with M50 NiL Propagation Rates. Affect of Stress on. Rate During Operation: 250 ksi at 1820 Min. ...

http://www.gastopsusa.com/knowledge_center_documents/1/GasTOPS_IEEE08_Final030606.pdf

350 ksi. M50 NiL. 300 ksi. Critical mass rate. Critical mass loss. 52100. 278 ksi. AFRL Bearing Rig: M50 NiL Propagation Rates. Critical particle size ...

http://www.gastopsusa.com/knowledge_center_documents/1/MetalSCAN_ISHM07.pdf

File Format: PDF/Adobe Acrobatby D GIRODINNOTE: Other than the components listed above, M50Nil contains 3.20 to 3.60% of Ni. M50 NiL ... M50NiL. It may be due to the detrimental effect of the ...

http://www.ntn.jp/english/products/review/pdf/NTN_TR76_en_p024_031.pdf

als such as case-hardened Pyrowear 675 (P675) and M50NiL and through-hardened M50. ... and Forster (6) showed that M50 and M50 NiL bearings had ...

http://www.mae.ufl.edu/arakere/docs/STLE_spall_1.pdf

by NA Branch - 2010M50 NiL bearings. XRD was done on bearing raceways that had experienced 106–1010 .... tion Characteristics of M50, M50 NiL and 52100 Bearing Materials: Part ...

http://www.mae.ufl.edu/arakere/docs/ASTM_spall_2.pdf

Rolling Contact Fatigue Life and Spall Propagation Characteristics of AISI M50, M50 NiL, and AISI 52100, Part III: Metallurgical Examination by Nelson H. ...

http://www.tribologyindia.org/images/trrqu-3-jan-2010.pdf

hardened M50NiL Duplex, with different kinds of surface finishing proposed. ..... discs in M50NiL Duplex with the MIC finishing process ...

http://journals.pepublishing.com/index/F7276664K212X472.pdf

by L Wang - 2007 - Cited by 4

http://eprints.soton.ac.uk/48033/01/TRIBINT-_Ling2007_published.pdf

ring materials, M50 and M50 NiL. Test bearing sizes were 35mm bore radial bearings ... 8.2.2 Summary of 207 Fatigue Testing, M50 NiL Steel 88 ...

http://www.stormingmedia.us/19/1998/A199813.pdf

with nitrided M50-NIL rods. RCF testing did not produce a significant percentage of ball failures for either the oxidized or non-oxidized condition. ...

http://www.stormingmedia.us/72/7244/A724423.pdf

File Format: PDF/Adobe Acrobatby D GIRODIN - Related articles

http://www.ntn.co.jp/japan/products/tech/review/pdf/NTN_TR76_P023.pdf

0.030 以下. 0.030 以下. 0.040 以下. 0.040 以下. 0.040 以下. 0.040 以下. 0.025 以下. 表13.3 高速度鋼の化学成分. AMS. 6491 (M50). 5626. 2315 (M50NiL). 規 格 ...

http://www.ntn.co.jp/japan/products/catalog/pdf/rolling/pdf/bearing_a083_084.pdf

5 May 2008 ... a new bearing, which incorporated a tabbed outer race and an M50-Nil inner race, which featured revised internal geometry. ...

http://www.atsb.gov.au/publications/investigation_reports/2007/AAIR/pdf/aair200700357_001.pdf

The material M50 NIL is typically used in high-speed main shaft engine ... M50 NIL can handle much higher stress levels that result from the speeds involved ...

http://nhbb.com/files/newsletter/NH_2007_Vol1.pdf

steel alloys, such as M-50 NiL. Carburizing is a heat treat process used on parts made of alloys with a ... content such as M50 NiL. As these components are ...

http://nhbb.com/files/newsletter/NH_2007_Vol3.pdf

ténacité élevée supérieure à celle de l'acier M50NiL cémenté. .... masse 100Cr6 et M50 et supérieure à celle des aciers de cémentation refondus (M50NiL, ...

http://www.snr-supplier.com/group/site/fr-fr/file.cfm/01acier32crmov13.pdf?contentID=1152

by IM Howard - 1994 - Cited by 16

http://dspace.dsto.defence.gov.au/dspace/bitstream/1947/3347/1/DSTO-RR-0013 PR.pdf

The alloy ASA M50 and M50 NIL are the primary bearing steels used by the Navy in its turboshaft engines. Since the Navy operates over salt water, ...

http://www.nrl.navy.mil/content_images/75awards.pdf

steel, although some M50 Nil and hybrid bearings were also tested. A Rockwell C indent was used as the seeded fault. Each bearing was ...

http://ieeexplore.ieee.org/iel5/4505446/4526225/04526603.pdf?arnumber=4526603

primarily of SAE 52100 steel, although some M50 Nil and ..... from M50 NiL will indicate whether the effect of debris the. University ...

http://ieeexplore.ieee.org/iel5/11012/34697/01656121.pdf

M50Nil. >150. 122 / R400. >150. 50 / R400. M50. >150. >150. >150. 102 / R400. The indent damage mechanism illustrated in figure 8 could be summarised as ...

http://www.snr-ntn-europe.com/group/fr/en-en/file.cfm/10rollingcontactfatiguetests.pdf?contentID=1161

M50 NiL for this temperature range. Conclusions. A new steel for bearing applications dedicated to severe in-service conditions has ...

http://www.snr-ntn-europe.com/group/fr/en-en/file.cfm/12improvedbearingsteelforapplications.pdf?contentID=1163

by S Marble - Cited by 8

http://www.sentientscience.com/pdf/psb.pdf

M50NiL were compared using this method and the results are shown in Fig. .... 6 Hardness profile of (a) M50 and (b) M50NiL before and after plasma nitriding ...

http://www.brammer.nl/images/sce/Downloads/Netherlands/MC6.pdf

by EV Zaretsky - Related articles

http://gltrs.grc.nasa.gov/reports/2007/TP-2007-214463.pdf

While there have been several promising candidates, (M50 NiL, Pyrowear 675, and ..... The problem is linked to the use of M50NIL or small carbide structured ...

http://gltrs.grc.nasa.gov/reports/2002/TM-2000-210059-REV1.pdf

Table 9 Bearing internal geometry, operating conditions and endurance data for VIMVAR M50NiL steel ball bearings. Maximum. Life. Pitch. Contact Ball ...

http://pep.metapress.com/index/732L328802W131H0.pdf

or M50Nil outer races with outer races manufac- tured from 32CDV13 with deep nitriding. SKF P/N Applicability –. Bearing Re-Identification. Original SKF P/N ...

http://www.skf.com/files/096403.pdf

Increasing damage on gear tooth. Bearing Prognostics Research (AFRL). • Seeded fault test on bearing test rig. • 52100 and M50NiL bearing steels ...

http://www.icaen.uiowa.edu/~ie_155/Lecture/GasTops.pdf

by A Erdemir - 1999Low-carbon bearing steels (e.g., M50 Nil and M50. Supernil) with improved toughness and case- hardening capability were also developed and used in ...

http://www.osti.gov/bridge/servlets/purl/11942-eqtc8S/webviewable/11942.pdf

by JH Adair - 1999 - Related articles

http://www.osti.gov/bridge/servlets/purl/3465-J5EaXl/webviewable/3465.pdf

M50 Nil. 6278. GE B50TF211*. Round Bars: 12.5 – 125mm (0,49“-. 4,90“). E32CDV13. 6481. ~1.7765. E32CDV13 Eurocopter ASNA 6128*. Agusta AMS6481*. Round Bars: ...

http://www.bucanada.ca/files/Special_Aerospace_Materials_2009Rev-ex10.pdf

by A Nather - 2005 - Cited by 12

http://www.josonline.org/pdf/v13i3p240.pdf

M50Nil, Pyrowear 675, etc. In addition, Universal HPQ™ furnaces are used for other vacuum carburizing/gas quenching processes including ...

http://www.secowarwick.com/vacuum/v-405vacuumcarburizing.pdf

2315 (M50NiL). Standard. C. Si. P. S. Cr. Mo. V. Mn. Chemical composition (%). 0.77〜0.85. 0.65〜0.80. 0.11〜0.15. Max. 0.25. 0.20〜0.40. 0.10〜0.25 ...

http://www.promshop.info/cataloguespdf/a083-084.pdf