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Online since: July 2011
Authors: Anders Engström, Lars Höglund, Johan Bratberg, Qing Cheng, Paul Mason
In both MCrAlY and NiAl-based coatings, the Al-rich b-phase (bcc; B2) serves as an Al reservoir for the formation of a protective a-alumina scale.
Several studies have shown that the latter mechanism may contribute more to the overall Al depletion than the former one does, although repeated spallation of the a-alumina scale may accelerate the loss of Al due to oxidation.
In the simulations by Campbell at el. the amounts of secondary phases present (i.e. g´+ MC carbide) is relatively low (<35%) and the assumptions which underly using the disperse diffusion model are thus still valid.
Symbols are experimental data from Campbell et al [22].
Al, Co, Cr, Ni, Ti and W, as shown in Table 1.
Several studies have shown that the latter mechanism may contribute more to the overall Al depletion than the former one does, although repeated spallation of the a-alumina scale may accelerate the loss of Al due to oxidation.
In the simulations by Campbell at el. the amounts of secondary phases present (i.e. g´+ MC carbide) is relatively low (<35%) and the assumptions which underly using the disperse diffusion model are thus still valid.
Symbols are experimental data from Campbell et al [22].
Al, Co, Cr, Ni, Ti and W, as shown in Table 1.
Online since: November 2007
Authors: Shigeru Itoh
Car dboar d
Wat er
Al al l oy pl at e( A5052- O)
Expl osi ve( SEP: 2g)
30mm(Wat er l evel )
El ect r i c det onat or
50mm(Die)
Cl a y
φ 120mm
φ 100mm
φ 100mm
Wat er
Al al l oy pl at e( A5052- O)
Pr essur e vessel
El ect r i c det onat or
Expl osi ve( SEP: 10g)
Fig.7 Experimental set up
Fig. 8 Static press forming equipment
Press type: mechanical press, Press cycle: 35[cpm], Lubrication: HT103
The schematic diagram of the static press forming test set up is shown in Fig.8.
Online since: April 2024
Authors: Prasad Neena
[5] Danielsen SPO, Beech HK, Wang S, El-Zaatari BM, Wang X, Sapir L, Ouchi T, Wang Z, Johnson PN, Hu Y, Lundberg DJ, Stoychev G, Craig SL, Johnson JA, Kalow JA, Olsen BD, Rubinstein M Molecular characterization of polymer networks.
Voon,Synthesis of Graphene Oxide using Modified Hummers Method: Solvent Influence, Procedia Engineering 184 (2017) 469-477 [10] Pang, Y.; Yang, J.; Curtis, T.E.; Luo, S.; Huang, D.; Feng, Z.; Morales-Ferreiro, J.O.; Sapkota, P.; Lei, F.; Zhang, J.; et al.
Voon,Synthesis of Graphene Oxide using Modified Hummers Method: Solvent Influence, Procedia Engineering 184 (2017) 469-477 [10] Pang, Y.; Yang, J.; Curtis, T.E.; Luo, S.; Huang, D.; Feng, Z.; Morales-Ferreiro, J.O.; Sapkota, P.; Lei, F.; Zhang, J.; et al.
Online since: October 2006
Authors: M. Sánchez Carrilero, Miguel Álvarez, M.J. Cano, J.R. Astorga, Mariano Marcos Bárcena, Enrique Ares
Polígono Industrial El Trocadero
E-11510-Puerto Real, Cádiz, SPAIN
a
mariano.marcos@uca.es, benrares@uvigo.es
Abstract.
Alloy AA2024 composition (% mass) Cu Mg Mn Si Fe Zn Ti Cr Al 4.00 1.50 0.60 0.50 0.50 0.25 0.15 0.10 Rest A300/A310 A319 / A320 / A321 A330 / A340 A340 - 500 / 600 A300/A310 A319 / A320 / A321 A330 / A340 A340 - 500 / 600 From these sheets of both materials CF/AA2024 FML pairs were prepared with a mechanical jointing by using a vertical seizure pincers.
Alloy AA2024 composition (% mass) Cu Mg Mn Si Fe Zn Ti Cr Al 4.00 1.50 0.60 0.50 0.50 0.25 0.15 0.10 Rest A300/A310 A319 / A320 / A321 A330 / A340 A340 - 500 / 600 A300/A310 A319 / A320 / A321 A330 / A340 A340 - 500 / 600 From these sheets of both materials CF/AA2024 FML pairs were prepared with a mechanical jointing by using a vertical seizure pincers.
Online since: February 2011
Authors: Chang Pin Chou, Chin Chun Chang, Ji Gang Yang, Ling Qi
Table 1 Chemical composition (wt %) of base and filler metal
Type of Material
Si
Fe
Cu
Mn
Mg
Zn
Ti
Zr
Al
2024(BM)
0.14
0.318
4.38
0.547
1.38
0.124
0.054
--
Rem.
7050(BM)
0.03
0.11
2.04
0.003
2.31
6.02
--
0.01
Rem.
2319(FM)
0.06
0.17
6.7
0.26
0.018
0.01<
0.13
0.16
Rem.
5356(FM)
0.04
0.1
--
0.13
5.0
--
0.07
--
Rem.
The tensile specimens were prepared to evaluate the transverse tensile properties, including yielding strength (YS), ultimate tensile strength (UTS), and elongation ratio (El).
The tensile specimens were prepared to evaluate the transverse tensile properties, including yielding strength (YS), ultimate tensile strength (UTS), and elongation ratio (El).