Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Ameth Fall"'
Publikováno v:
Metals, Vol 8, Iss 5, p 360 (2018)
The double differentiation method overestimates the critical stress associated with the initiation of dynamic transformation (DT) because significant amounts of the dynamic phase must be present in order for its effect on the work hardening rate to b
Externí odkaz:
https://doaj.org/article/0200e29fd6bb427fa42f699b7b0e0ae3
Autor:
Ndongo Dia, Ameth Fall, Rouguiyatou Ka, Amary Fall, David E Kiori, Deborah G Goudiaby, Aichatou D Fall, El Hadj Abdourahmane Faye, Annick Dosseh, Kader Ndiaye, Ousmane M Diop, Mbayame Nd Niang
Publikováno v:
PLoS ONE, Vol 10, Iss 5, p e0121704 (2015)
BackgroundIn Senegal, with the variable routine vaccination coverage, the risk for illness and death from measles still exists as evidenced by the measles epidemic episode in 2009. Since 2002 a laboratory-based surveillance system of measles was esta
Externí odkaz:
https://doaj.org/article/4b648f091cfa438eb2eb22cc378a1646
Publikováno v:
Metals, Vol 6, Iss 11, p 275 (2016)
In the present paper, tool wear and the rate of wear during friction stir welding (FSW) of Ti-6Al-4V alloy are investigated. A conical tungsten carbide tool was used to produce butt-type friction stir welded joints in two-millimeter thick Ti-6Al-4V s
Externí odkaz:
https://doaj.org/article/a07767031f20413cb5c1e0290ada18a1
Autor:
Guillaume Tcheutchoua Soh, Modou Ndiaye, Omar Gaye, Ousmane Thiam, Ibrahima Cisse, Papa Ameth Fall
Publikováno v:
Urology Case Reports, Vol 51, Iss , Pp 102589- (2023)
Spontaneous bladder rupture is a rare condition, and its diagnosis has evolved over time. The clinical presentation is variable and nonspecific, with prognosis depending on the patient's condition and early recognition. We report a case of spontaneou
Externí odkaz:
https://doaj.org/article/d28f3fdede0748219aea96f01c0e54b7
Autor:
Ameth Fall, Henri Champliaud, Mohammad Jahazi, Alireza Khodabandeh, H. Monajati, M. H. Fesharaki
Publikováno v:
Materials Science and Engineering: A. 749:166-175
Local mechanical properties of Ti-6Al-4V butt joints produced by friction stir welding (FSW) were investigated using the shear punch testing and correlated with the global mechanical properties, microstructure, and microtexture evolution of the joint
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23c009879916585b1b4deead7d739d7e
https://doi.org/10.1016/j.msea.2019.01.077
https://doi.org/10.1016/j.msea.2019.01.077
Publikováno v:
Metallurgical and Materials Transactions A. 49:5956-5961
Experiments were carried out on the post-dynamic coarsening of alpha and reverse transformation of Ti-6Al-4V. The post-dynamic coarsening followed rn vs time kinetics and the n = 3 best fit indicated that it was controlled by bulk diffusion, i.e., by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f573c2e44054de71252e8885bb340e7c
https://doi.org/10.1007/s11661-018-4952-1
https://doi.org/10.1007/s11661-018-4952-1
Autor:
Clodualdo Aranas, Xiankun Ji, Anes Foul, Baoqi Guo, Mohammad Jahazi, John J. Jonas, Ameth Fall
Publikováno v:
Materials Science and Engineering: A. 729:119-124
Simulated multipass deformation experiments were carried out via torsion testing on a Ti-6Al-4V alloy in the two-phase region under both isothermal and continuous cooling conditions. Flow softening was observed during the isothermal multipass deforma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13389965824259858c4adc5cab83c99f
https://doi.org/10.1016/j.msea.2018.05.058
https://doi.org/10.1016/j.msea.2018.05.058
Publikováno v:
Materials & Design, Vol 113, Iss, Pp 305-310 (2017)
The high temperature flow stress data of Koike et al. (2000) determined on a Ti-5.5 wt%Al-1.5 wt%Fe alloy are reanalyzed in terms of transformation softening. They observed that the harder alpha transforms dynamically into the softer beta phase when
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3babd2323b72c5834b05aa3b991430b3
https://doi.org/10.1016/j.matdes.2016.10.039
https://doi.org/10.1016/j.matdes.2016.10.039
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 91:2919-2931
In this work, the microstructure and mechanical behavior of friction stir-welded 2-mm-thick sheets of Ti–6Al–4V alloy were investigated. Specifically, the influence of friction stir welding (FSW) process parameters on microstructure evolution, de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3026fc7a0019482c42ccf3b5be85aca2
https://doi.org/10.1007/s00170-016-9527-y
https://doi.org/10.1007/s00170-016-9527-y
Publikováno v:
Scripta Materialia. 133:83-85
The dynamic transformation of alpha to beta is shown to take place in titanium at temperatures below the beta transus. The driving force for this transformation is the net softening associated with the formation of the lower flow stress beta phase. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2971f4140ef8e9c8c9a3d9728ce69d04
https://doi.org/10.1016/j.scriptamat.2017.02.022
https://doi.org/10.1016/j.scriptamat.2017.02.022