The orientation of one part (X) of a deformed grain changes rapidly to that of a differently oriented part (Y) of the same grain across a thin boundary of a finite width called the transition bands (T) or microbands. It shows the variation of orientation at different regions of a same grain. Therefore, the deformation band is nothing but a volume of constant orientation that is significantly different than the orientation of other parts of the grain, which is explained by a schematic diagram ( Fig. It happens owing to different rotations during the deformation by use of a different combination of slip systems to achieve the imposed strain.

However, the orientation of plastically deformed alloy changes from grain to grain or in different regions in a same grain. In general, composition ratio of the various alloying elements is maintained with respect to each other, but the absolute value of the single alloying element is not critical as long as primary crystallization of coarse intermetallic phases is avoided.ĭislocation structures of 92% cold rolled commercial purity aluminium alloy (AA1235 :0.67 Fe, 0.16Si, 0.01 Ti and rest Al) If the material is properly processed, then it can only be assumed that the material properties are not actually deteriorated with increased amount of Fe, Si and/or Mn. It is necessary to control the Si content of high quality aluminium foils where material characteristics are determined by Fe/Si ratio. The silicon influences the nature of eutectic constituent, solid solubility of other elements, formation of precipitates and dispersoids, and the transformation characteristics of the precipitates. The type of intermetallic phases formed during solidification and volume fraction, amount and size of the individual particles can be controlled by changing the silicon (Si) and iron (Fe) content, i.e., by adjusting the Fe/Si ratio. The precipitation reaction due to these impurities easily occurs during heat treatment at the temperature range of 200 – 600 oC, affecting cold working, softening, and corrosion resistance of the alloys. Iron and silicon are the inevitable impurities in commercial purity aluminium alloys. It is affected by various impurities and the precipitates forming at the operational steps. In general, the recrystallization behavior is the resultant of three steps, viz., deformation, recrystallization and grain growth. Therefore, the intermediate annealing treatment and consequent recrystallization behavior are prime factors for controlling microstructures as well as properties of foils. The ingot of 7mm thickness, obtained from either direct chill (DC) casting or continuous casting process, is first cold rolled to reduce the thickness approximately 0.6 mm followed by an intermediate annealing treatment and then final roll pass is given to produce the foils of desired thickness. Aluminium ingots are processed through the multi-operational steps in the consequence of foil preparation. Our primary work includes debt and financing transactions, fund raising transactions, stressed asset transactions, corporate and debt restructuring, banking and regulatory advisory, insolvency and bankruptcy matters.Commercial purity aluminium alloys are largely used in the forms of foil for food packaging industries. Such debt transactions include cross border structures including matters dealing with external commercial borrowing regulations, overseas direct investment regulations and their respective security and contractual comforts.ĮQUILEX is a boutique law firm which offers comprehensive legal services towards transactions, advisory, regulatory and dispute resolution issues.

Deep's experience includes trade finance, structured finance, acquisition finance, asset finance, project finance, restructuring (whether on stressed assets or otherwise), asset reconstruction and other syndicated lending transactions. Selected entrepreneurs will be informed of their time slot.ĭeep Roy is the founding partner at Equilex. We are arranging this start-up Advise Camp for founders to come take initial advise, get a general direction, explore options & strategies to brace, mitigate and plan for current & future foreseen troubled times during the life cycle of any start-up.ģ.Banking – New Arrangements and Negotiations.ĥ. If your startup journey needs a re look or advise on a range of current and future issues such as Contracts (Existing and New), Funding (Debt & Equity), Banking Arrangements, Vendor and Employee payouts, Insolvency issues, Restructuring for growth. TiE Mumbai invites you to a one on one mentoring session with Lawyer Deep Roy.

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