Zobrazeno 1 - 10
of 108
pro vyhledávání: '"G W Greenwood"'
Autor:
G. W. Greenwood
Publikováno v:
Materials Science and Technology. 26:398-403
Internal stresses may be generated continually in many polycrystalline materials. Their existence is manifested by changes in crystal defect concentration and arrangement, by surface observations, by macroscopic shape changes and particularly by alte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b564811460313dc563d4aa3c3554e5e0
https://doi.org/10.1179/026708309x12506933872946
https://doi.org/10.1179/026708309x12506933872946
Autor:
G. W. Greenwood
Publikováno v:
Materials Science and Technology. 25:533-541
The theory of linear elasticity provides a complete description of reversible deformation under small stresses for both isotropic and anisotropic solids. At elevated temperatures, creep deformation sometimes occurs at a rate that is linearly dependen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af7398d9ec147408ccc84c3a99f9067d
https://doi.org/10.1179/174328408x322105
https://doi.org/10.1179/174328408x322105
Autor:
G. W. Greenwood
Publikováno v:
Materials Science and Engineering: A. 463:166-170
Creep rate and ductility are uniquely related to stress, temperature and structure and correlations to assist in predicting the behaviour of many widely differing materials have emerged, particularly in the past four decades. Progress has also been m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::239c418985f25c4b4ef1e346f232735f
https://doi.org/10.1016/j.msea.2006.06.143
https://doi.org/10.1016/j.msea.2006.06.143
Autor:
G. W. Greenwood
Publikováno v:
Materials Science and Engineering: A. :12-15
Areas on these maps define ranges of homologous temperature and of applied stress divided by an elastic modulus over which specific mechanisms of deformation are predominant. Langdon has extended their use to illustrate important features. Lines sepa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::844aa9767b402b90ba7cef8fdd298d7e
https://doi.org/10.1016/j.msea.2005.08.098
https://doi.org/10.1016/j.msea.2005.08.098
Publikováno v:
Materials Science and Technology. 21:701-707
Tensile creep behaviour of OFHC copper in the temperature range 850 to 1074°C (0·83 to 0·99Tm) under low stress (0·1 to 0·6 MPa) has been investigated in tension for 0·4 and 0·6 mm thick foils with grain size ∼1 mm, in the plane of the foils
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8a9d9f07fd60078bc0b80e0992add77
https://doi.org/10.1179/174328405x46105
https://doi.org/10.1179/174328405x46105
Publikováno v:
Materials Science and Engineering: A. 382:50-56
Creep behaviour of 7075 aluminium alloy has been investigated in the temperature range 350–410 °C and at applied tensile stresses between 1.8 and 6.3 MPa. The as-received material was thermomechanically processed to obtain 48 μm grain size, with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cff8378e42f358e7cd391d22a0b68919
https://doi.org/10.1016/j.msea.2004.04.047
https://doi.org/10.1016/j.msea.2004.04.047
Autor:
G. W. Greenwood
Publikováno v:
Journal of Materials Science. 39:3871-3875
Anisotropy of crystal structure leads to complications in mechanical behaviour. Robert Cahn, 50 years ago, made valuable contributions through determination of crystallographic features of plastic deformation in large crystals in polycrystalline α-u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f77253954465b0c43b39e07763c7fe85
https://doi.org/10.1023/b:jmsc.0000031468.83551.e0
https://doi.org/10.1023/b:jmsc.0000031468.83551.e0
Publikováno v:
Materials Science and Technology. 20:42-46
Tensile creep response was investigated for AZ61 alloy (Mg - 6.4Al - 0.9Zn - 0.2Mn, wt-%) of mean linear intercept grain size ~ 25 μm at stresses in the range 0.9 - 4 MPa over the temperature range...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d95ba92c2b50e22058c425029b96dcd
https://doi.org/10.1179/026708304225010334
https://doi.org/10.1179/026708304225010334
Publikováno v:
Acta Materialia. 51:4611-4619
The creep and surface profile changes of wires, of diameters from 25–500 μm of high purity (>99.99%) copper, have been investigated close to their melting temperature under stresses up to 400 kPa. Strain rate always varied linearly with stress. Fo
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https://explore.openaire.eu/search/publication?articleId=doi_________::9aa09c0a3c734c53b9beb7d780685ffa
https://doi.org/10.1016/s1359-6454(03)00298-2
https://doi.org/10.1016/s1359-6454(03)00298-2
Publikováno v:
Zeitschrift für Metallkunde. 94:25-29
Creep of three chill cast alloys based on the composition Mg-2.5RE-0.35Zn-0.3Mn-0.03Zr:(wt.%) with partial or complete substitution of Nd for Ce mischmetal has been investigated for the stress range 50–90 MPa and temperature range 150–240°C. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34f8167edd815753deef8d24dbdaa8c9
https://doi.org/10.3139/146.030025
https://doi.org/10.3139/146.030025