Výsledky vyhledávání - "Campbell, Laird"

Akademický článek

Oxygen-induced intergranular fracture of the nickel-base alloy IN718 during mechanical loading at high temperatures

Autor: Ulrich Krupp, William Kane, Jeffrey A. Pfaendtner, Xinyu Liu, Campbell Laird, Charles J. McMahon Jr.

Publikováno v: Materials Research, Vol 7, Iss 1, Pp 35-41 (2004)

There is a transition in the mechanical-failure behavior of nickel-base superalloys from ductile transgranular crack propagation to time-dependent intergranular fracture when the temperature exceeds about 600 °C. This transition is due to oxygen dif

Externí odkaz: https://doaj.org/article/6497714e499a42979375fe03871b1dcc

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Precipitation in Solution-Treated Al-4wt%Cu under Cyclic Strain

Autor: Adam M Farrow, Campbell Laird

Publikováno v: Solid State Phenomena. :715-720

Solution-treated Al-4wt%Cu was strain-cycled at ambient temperature and above and the precipitation behavior investigated by TEM. In the temperature range 100°C to 200°C precipitation of Θ´´ appears to have been suppressed and precipitation of �

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ce3b1d424bd9a74780775f2169d03d6f
https://doi.org/10.4028/www.scientific.net/ssp.172-174.715

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Precipitation in solution-treated aluminium–4 wt% copper under cyclic strain

Autor: Adam M Farrow, Campbell Laird

Publikováno v: Philosophical Magazine. 90:3549-3566

Solution-treated Al–4 wt% Cu was strain-cycled at ambient temperature and above, and the precipitation and deformation behaviours investigated by TEM. Anomalously rapid growth of precipitates appears to have been facilitated by a vacancy super-satu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::532533f24f70399a6cdea0b14e349951
https://doi.org/10.1080/14786435.2010.491809

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Sensors for monitoring early stage fatigue cracking

Autor: Yuanfeng Li, Robert P. Silberstein, Thomas E. Michaels, Greg Welsh, Jerrell A. Nardiello, John M. Papazian, David C. Grundy, Neil Goldfine, Jennifer E. Michaels, Leslie Evans, Campbell Laird, Chris Craven

Publikováno v: International Journal of Fatigue. 29:1668-1680

Three sensor systems were evaluated for their ability to detect early stage fatigue cracking in open holes. The sensor systems were (1) a Meandering Winding Magnetometer Array sensor system that induces eddy currents to monitor conductivity changes;

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8e0f10dde3797fbec406a6370a62cb62
https://doi.org/10.1016/j.ijfatigue.2007.01.023

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Brittle intergranular fracture of a Ni-base superalloy at high temperatures by dynamic embrittlement

Autor: C.J. McMahon, Ulrich Krupp, W.M. Kane, Campbell Laird

Publikováno v: Materials Science and Engineering: A. :409-413

Oxygen-induced dynamic embrittlement of nickel (Ni)-base superalloys at 650 °C has been studied by static loading of notched bars in pure bending at fixed displacement on IN718 in the form of conventionally heat-treated polycrystals, polycrystals sp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::169d819aec04eb4a9d6ba37120f38a79
https://doi.org/10.1016/j.msea.2004.05.053

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Electrochemical fatigue sensor response to Ti–6 wt% Al–4 wt% V and 4130 steel

Autor: Campbell Laird, J. Wang, A. Witney, M. Z. Wang, J. J. DeLuccia, Y.-F. Li ‡

Publikováno v: Philosophical Magazine. 84:331-349

Some of the finer details concerning electrochemical–mechanical interactions under cyclic stressing, observed by the electrochemical fatigue sensor (EFS), are reported, with emphasis on a series of ramp-and-hold cyclic tests on samples of hardened

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db549d43497065837926a646995bf77b
https://doi.org/10.1080/14786430310001612157

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Oxygen-induced intergranular fracture of the nickel-base alloy IN718 during mechanical loading at high temperatures

Autor: Charles J. McMahon Jr., Campbell Laird, Jeffrey A. Pfaendtner, W.M. Kane, Xinyu Liu, Ulrich Krupp

Publikováno v: Materials Research, Vol 7, Iss 1, Pp 35-41 (2004)
Materials Research v.7 n.1 2004
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Volume: 7, Issue: 1, Pages: 35-41, Published: MAR 2004

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::950650b012c723cb9aebc1ebd3a3898c
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000100006

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Evaluation of fatigue damage for duplex stainless steels in aggressive environments by means of an electrochemical fatigue sensor (EFS)

Autor: J. DeLuccia, Marc Anglada, A. Gironès, Antonio Mateo, Luis Llanes, Campbell Laird

Publikováno v: International Journal of Fatigue. 25:1189-1194

The EFS (Electrochemical Fatigue Sensor) is a device that is based on a study of electrochemical–mechanical interactions, providing information about the status of fatigue damage in a material, and promises to become a useful non-destructive, niche

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cc2f1897b0f183304c89afcdb371b18a
https://doi.org/10.1016/s0142-1123(03)00119-1

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The effect of grain-boundary-engineering-type processing on oxygen-induced cracking of IN718

Autor: Olaf Dueber, Xinyu Liu, Campbell Laird, W.M. Kane, C.J. McMahon, Ulrich Krupp

Publikováno v: Materials Science and Engineering: A. 349:213-217

Polycrystalline Ni-base superalloys are prone to time-dependent intergranular failure when the loading temperatures exceeds about 873 K. The fracture process is then controlled by oxygen grain-boundary diffusion followed by decohesion of the respecti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ba8927d4a6f4e349f852386b860870a
https://doi.org/10.1016/s0921-5093(02)00753-0

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Initiation and propagation of stage-I cracks in copper single crystals under load control

Autor: Mohammad Ahsan Jameel, Campbell Laird, Pedro Peralta

Publikováno v: Materials Science and Engineering: A. 342:279-286

The initiation and propagation of stage-I cracks determine the magnitude of the life in copper single crystals as the transition to stage-II behavior heralds the advent of fracture. The behavior of initiation and propagation of stage-I cracks under s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d5731b7415cd5aabb25285f7e7d4058
https://doi.org/10.1016/s0921-5093(02)00321-0

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