Zobrazeno 1 - 10
of 332
pro vyhledávání: '"D.H. Kirkwood"'
Autor:
D.H. Kirkwood, Altan Turkeli
Publikováno v:
Materials Science Forum. 508:443-448
In this study, back diffusion of manganese in solid between secondary arms in the ternary Fe – 1.6 wt % Mn – 0.1, 0.21, 0.4 and 0.75 wt % C alloys was investigated in unidirectionally solidified quenched specimens which solidified in the range of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba2142aaffb38ab04e49080322235b3c
https://doi.org/10.4028/www.scientific.net/msf.508.443
https://doi.org/10.4028/www.scientific.net/msf.508.443
Publikováno v:
Metallurgical and Materials Transactions A. 34:1545-1554
Shaping of metals by thixoforming relies on the unusual flow behavior of semisolid slurries containing nondendritic solid phase. The microstructure of an alloy stirred during freezing consists of rounded particles of solid, as opposed to the dendrite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a52c226436f04ebf2b119271f4bb7f89
https://doi.org/10.1007/s11661-003-0266-y
https://doi.org/10.1007/s11661-003-0266-y
Autor:
D.H. Kirkwood, A. Giese, G. Laslaz, L. Lasa, J.T. Rheinlander, L. Maenner, Plato Kapranos, Janet Jonna Bentzen, G. Chiarmetta, S. Blais, P.T. Toft, C.P. Debel, Jose M. Rodriguez-Ibabe, P. Giordano, Helen V. Atkinson
Publikováno v:
Journal of Materials Processing Technology. 135:271-277
Hypereutectic aluminium–silicon alloys offer the possibility of an in situ natural composite (the silicon acting as the reinforcing phase) with properties that make them attractive for a number of automotive applications. However, conventional cast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2cb1d9829469d9b015b4697509141cb
https://doi.org/10.1016/s0924-0136(02)00857-9
https://doi.org/10.1016/s0924-0136(02)00857-9
Publikováno v:
Metallurgical and Materials Transactions A. 34:409-417
Semisolid metal alloys, used in thixoforming, are thixotropic. The slurry viscosity is shear-rate- and time dependent provided the microstructure in the semisolid state is nondendritic and consists of solid spheroids surrounded by liquid. Thixoformin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9145df7216a828a13a9904fbe84f068e
https://doi.org/10.1007/s11661-003-0342-3
https://doi.org/10.1007/s11661-003-0342-3
Publikováno v:
Materials Science Forum. :131-136
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5be09f2467fac42b25774f01f51b820e
https://doi.org/10.4028/www.scientific.net/msf.396-402.131
https://doi.org/10.4028/www.scientific.net/msf.396-402.131
Publikováno v:
Journal of Materials Processing Technology. 111:31-36
The shaping of metals by thixoforming relies on the unusual flow behaviour of slurries containing non-dendritic solid, which was first studied at MIT in the early 1970s. It was discovered that if an alloy is uniformly stirred during freezing, discret
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17690a2f7bec89c313f5da10125a9590
https://doi.org/10.1016/s0924-0136(01)00534-9
https://doi.org/10.1016/s0924-0136(01)00534-9
Autor:
A.A. Howe, D.H. Kirkwood
Publikováno v:
Materials Science and Technology. 16:961-967
A numerical model for the prediction of solidification and the accompanying microsegregation in peritectic alloys is described. Several finite difference schemes have been tested, based on one-dimensional computational cells for microsegregation calc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ece9f1f305d1d6e2f91d75b1fedc47d
https://doi.org/10.1179/026708300101508900
https://doi.org/10.1179/026708300101508900
Publikováno v:
Materials & Design. 21:387-394
Thixoforming- or semi-solid metal processing (SSM) is the shaping of metal components in the semi-solid state. Several companies in Europe, Japan and the US have recently started to manufacture in this way, producing millions of components annually f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ac212a68b209db741837abac3920c7c
https://doi.org/10.1016/s0261-3069(99)00077-1
https://doi.org/10.1016/s0261-3069(99)00077-1
Autor:
P.J. Ward, D.H. Kirkwood
Publikováno v:
Materials Letters. 62:3981-3983
In conformity with the principle of shear reversal, it is proposed that the power law index in the Cross equation relating steady state viscosity to shear rate in semisolid alloy slurries should have a value of 4/3, which is independent of alloy syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22f6155efa789a3b293a3eeab68f9a7e
https://doi.org/10.1016/j.matlet.2008.05.059
https://doi.org/10.1016/j.matlet.2008.05.059