On the possible mechanism(s) of fracture in commercial aluminium

1980 ◽  
Vol 15 (8) ◽  
pp. 2136-2139 ◽  
Author(s):  
A. M. Hammad ◽  
K. A. Padmanabhan ◽  
T. R. Anantharaman
Keyword(s):  
Commercial Aluminium

“Cavity” formation in superplastically deformed aluminium alloys

1990 ◽  
Vol 48 (4) ◽  
pp. 958-959
Author(s):  
A. Cziráki ◽  
E. Ková-csetényi ◽  
T. Torma ◽  
T. Turmezey
Keyword(s):  
Grain Boundaries ◽  
Aluminium Alloys ◽  
Superplastic Deformation ◽  
Volume Fraction ◽  
Superplastic Forming ◽  
Polished Surface ◽  
Cavity Formation ◽  
Stress Concentrations ◽  
Electron Microscopic ◽  
Commercial Aluminium

It is known that the formation of cavities during superplastic deformation can be correlated with the development of stress concentrations at irregularities along grain boundaries such as particles, ledges and triple points. In commercial aluminium alloys Al-Fe-Si particles or other coarse constituents may play an important role in cavity formation.Cavity formation during superplastic deformation was studied by optical metallography and transmission scanning electron microscopic investigations on Al-Mg-Si and Al-Mg-Mn alloys. The structure of particles was characterized by selected area diffraction and X-ray micro analysis. The volume fraction of “voids” was determined on mechanically polished surface.It was found by electron microscopy that strongly deformed regions are formed during superplastic forming at grain boundaries and around coarse particles.According to electron diffraction measurements these areas consist of small micro crystallized regions. See Fig.l.Comparing the volume fraction and morphology of cavities found by optical microscopy a good correlation was established between that of micro crystalline regions.

Study on the Preparation and Amplification Experiment of Al-Pillared Montmorillonite

2011 ◽  
Vol 396-398 ◽  
pp. 1440-1445
Author(s):  
Gang Chen ◽  
Chun Jie Yan ◽  
Jin Feng Shou ◽  
Juan Mei ◽  
Nan Nan Chen
Keyword(s):  
Pilot Scale ◽  
Micropore Volume ◽  
Bet Surface Area ◽  
Scale Production ◽  
Mass Ratio ◽  
Optimum Conditions ◽  
Technical Parameters ◽  
Pillared Montmorillonite ◽  
Commercial Aluminium ◽  
Major Factors

A method of preparation and pilot scale production of Al-pillared montmorillonite has been developed. There is a minimum of time and amount of liquid. And it is simpler to operate than the conventional method of pillaring by using the commercial aluminium hydroxychloride(PAC) powder as the pillaring agent. Here, the effect of the major factors such as the mass ratio of PAC to montmorillonite, the concentration of montmorillonite slurry, the sodium agent pretreatment, washing times and drying temperature on the Al-pillared montmorillonite are studied. Then the optimal technical parameters is determined. XRD, BET surface area and micropore volume are applied in order to study the structure and properties of Al-pillared montmorillonite. As a result, the amplification experiment under the optimum conditions shows that this method offers the potential for extension to an industrial-scale process.

Structures and Properties of Commercial Aluminium Alloys after Severe Straining

1998 ◽  
pp. 421-426
Author(s):  
M. V. Markushev ◽  
C. C. Bampton ◽  
M. Yu. Murashkin ◽  
D. A. Hardwick
Keyword(s):  
Aluminium Alloys ◽  
Structures And Properties ◽  
Commercial Aluminium

Annealing effects in commercial aluminium hot-rolled 7075(–Sc–Zr) alloys

2020 ◽  
Vol 142 (5) ◽  
pp. 1613-1623 ◽  
Author(s):  
Veronika Kodetová ◽  
Martin Vlach ◽  
Hana Kudrnová ◽  
Michal Leibner ◽  
Jaroslav Málek ◽  
...  
Keyword(s):  
Annealing Effects ◽  
Commercial Aluminium ◽  
Hot Rolled ◽  
Zr Alloys

Performance of commercial aluminium alloys as anodes in gelled electrolyte aluminium-air batteries

2015 ◽  
Vol 299 ◽  
pp. 195-201 ◽  
Author(s):  
M. Pino ◽  
J. Chacón ◽  
E. Fatás ◽  
P. Ocón
Keyword(s):  
Aluminium Alloys ◽  
Commercial Aluminium

Properties of Commercial Aluminium–Mica Composites Prepared by PM Route

1993 ◽  
Vol 36 (1) ◽  
pp. 67-70
Author(s):  
G. H. Borhani ◽  
V. K. Srivastava ◽  
J. P. Pathak ◽  
C. Ramachandra
Keyword(s):  
Commercial Aluminium
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