Zobrazeno 1 - 10
of 11
pro vyhledávání: '"David Levasseur"'
Publikováno v:
International Thermal Spray Conference.
Coatings applied on steel molds used for casting aluminum parts have two main purposes: avoid mold metal reaction and control thermal transfer to obtain directional solidification. The coatings widely known to foundry operators are water-based sodium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27495c21a039e86fa6fe995f443a2146
https://doi.org/10.31399/asm.cp.itsc2019p0695
https://doi.org/10.31399/asm.cp.itsc2019p0695
Publikováno v:
International Journal of Metalcasting. 10:216-223
Contrary to metallurgical properties such as dendrite fineness or microporosity, the level of inclusions in a casting is difficult if not impossible to assess accurately. Consequently, it is not easy to quantify the detrimental effect of inclusions o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d026f198836f00e8355b8bb6562ae3c4
https://doi.org/10.1007/s40962-016-0029-3
https://doi.org/10.1007/s40962-016-0029-3
Autor:
David Levasseur, Mathieu Brochu
Publikováno v:
Metallurgical and Materials Transactions A. 47:2257-2266
Pressureless sintering of Inconel 718 has important technological applications for the densification of metal injection molding or additive manufacturing of parts with powder/binder systems. The effect of heating rates ranging from 15 to 200 K/minute
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::138b43eb3c39785824bc151591e0a745
https://doi.org/10.1007/s11661-016-3361-6
https://doi.org/10.1007/s11661-016-3361-6
Autor:
David Levasseur, Mathieu Brochu
Publikováno v:
Metallurgical and Materials Transactions A. 47:869-876
Powder metallurgy of Inconel 718 superalloy is advantageous as a near-net shape process for complex parts to reduce the buy-to-fly ratio and machining cost. However, sintering Inconel 718 requires the assistance of supersolidus liquid formation to ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5bd33a39babf05b528b663573999007
https://doi.org/10.1007/s11661-015-3244-2
https://doi.org/10.1007/s11661-015-3244-2
Publikováno v:
Proceedings of the 17th International Conference on New Trends in Fatigue and Fracture ISBN: 9783319703640
One of the strongest aluminum alloy is AA7075; it has a yield strength of 350 MPa in the T73 heat-treated state, which is 50% stronger than construction steels. The alloy contains a high mass fraction of alloying elements, but no silicon; therefore i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0eed3bffed259e03776208d4b2963200
https://doi.org/10.1007/978-3-319-70365-7_9
https://doi.org/10.1007/978-3-319-70365-7_9
Publikováno v:
Materials Science Forum. 765:112-116
In order to compare the semi-solid SEED casting process to the Low Pressure Permanent Mould process (LPPM), the same part has been produced in aluminium A356 (AlSi7Mg04) using the two methods. The processes were first compared from an operational sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::284c0425e2e7980e5828064141400561
https://doi.org/10.4028/www.scientific.net/msf.765.112
https://doi.org/10.4028/www.scientific.net/msf.765.112
Publikováno v:
Materials Science and Engineering: A. 556:343-350
The deposition of Inconel 718 powders, by cold spray, was performed on a mild steel substrate. The deposits showed a porosity level lower than 3%, but lacked interparticle bonding, hence strength. To circumvent the problem, the deposits were used as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5444de02f2c87c877ac18c7579899780
https://doi.org/10.1016/j.msea.2012.06.097
https://doi.org/10.1016/j.msea.2012.06.097
Autor:
Mathieu Brochu, David Levasseur
Publikováno v:
Advanced Materials Research. 409:763-768
The use of powder metallurgy for near net shape sintering of superalloy could lead to major savings in machining time and material. The main challenge in sintering Inconel 718 is to avoid the formation of a prior particle boundary (PPB) network that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d272c8f2a4991ffc94c47a60d0655d8
https://doi.org/10.4028/www.scientific.net/amr.409.763
https://doi.org/10.4028/www.scientific.net/amr.409.763
Autor:
David Levasseur, Kevin W. Dean
Publikováno v:
Southern Communication Journal. 62:243-247
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52947a5a064c928d8c15a7225b0928a0
https://doi.org/10.1080/10417949709373058
https://doi.org/10.1080/10417949709373058
Autor:
David Levasseur, Kevin W. Dean
Publikováno v:
Southern Communication Journal. 62:56-72
What explains the conflict between the media spin, empirical studies, and the common characterization of Robert Dole's 1976 vice‐presidential debate in the communication field? This essay suggests that scholars have recontextualized Dole's 1976 deb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86aace739b9ab04a829b4690ab37e36f
https://doi.org/10.1080/10417949609373039
https://doi.org/10.1080/10417949609373039