View source for 20240035137. WROUGHT PRODUCTS MADE OF 2XXX ALLOY HAVING AN OPTIMIZED CORROSION RESISTANCE, AND METHOD FOR OBTAINING SAME simplified abstract (CONSTELLIUM ISSOIRE)

=WROUGHT PRODUCTS MADE OF 2XXX ALLOY HAVING AN OPTIMIZED CORROSION RESISTANCE, AND METHOD FOR OBTAINING SAME=


==Organization Name==

[[:Category:CONSTELLIUM ISSOIRE|CONSTELLIUM ISSOIRE]]


[[Category:CONSTELLIUM ISSOIRE]]

==Inventor(s)==

[[:Category:Melanie Ollat of Ruy-Montceau (FR)|Melanie Ollat of Ruy-Montceau (FR)]][[Category:Melanie Ollat of Ruy-Montceau (FR)]]

[[:Category:Jean-Christophe Ehrstrom of Grenoble (FR)|Jean-Christophe Ehrstrom of Grenoble (FR)]][[Category:Jean-Christophe Ehrstrom of Grenoble (FR)]]

==WROUGHT PRODUCTS MADE OF 2XXX ALLOY HAVING AN OPTIMIZED CORROSION RESISTANCE, AND METHOD FOR OBTAINING SAME - A simplified explanation of the abstract==


This abstract first appeared for US patent application 20240035137 titled 'WROUGHT PRODUCTS MADE OF 2XXX ALLOY HAVING AN OPTIMIZED CORROSION RESISTANCE, AND METHOD FOR OBTAINING SAME

==Simplified Explanation==

The abstract describes a method for thermomechanical treatment of wrought products made of a 2000 series aluminum alloy. The alloy composition includes various elements such as copper, magnesium, manganese, iron, silicon, zirconium, silver, zinc, titanium, and unavoidable impurities. The treatment involves a tempering process consisting of two sequences. 

* The first sequence is defined by a maximum temperature (T) between 130°C and 180°C, and a hold time at a temperature between 130°C and 180°C, equivalent to an equivalent duration (t) calculated at 160°C between 10 hours and 80 hours.
* The second sequence is defined by a temperature (T(t)) lower than T and a hold time (t) at a temperature between 100°C and 130°C, equivalent to an equivalent time (t) calculated at 160°C, such that it comprises between 0.3% and 15% of the equivalent duration (t) calculated for the first sequence.

Potential applications of this technology:
* Improved resistance to corrosion under stress in wrought products made of a 2000 series aluminum alloy.
* Suitable for various industries where corrosion resistance is crucial, such as aerospace, automotive, and marine.

Problems solved by this technology:
* Enhances the resistance to corrosion under stress, addressing a common issue in aluminum alloys.
* Provides a method for improving the mechanical properties of the alloy, ensuring its durability and reliability.

Benefits of this technology:
* Increased lifespan and performance of wrought products made of a 2000 series aluminum alloy.
* Cost-effective solution for improving corrosion resistance without the need for additional coatings or treatments.
* Enables the use of the alloy in demanding environments where corrosion under stress is a concern.


==Original Abstract Submitted==

a method for thermomechanical treatment of wrought products made of a 2000 series aluminum alloy comprising, in % by weight, cu 3.5-5.8; mg 0.2-1.5; mn≤0.9; fe≤0.15; si≤0.15; zr≤0.25; ag≤0.8; zn≤0.8; ti 0.02-0.15; unavoidable impurities≤0.05 each and ≤0.15 total; remainder aluminum, enabling an improvement in the resistance to corrosion under stress. it includes a tempering consisting of two sequences. the first sequence is defined by a maximum temperature tcomprised between 130� c. and 180� c. and by a hold time at a temperature comprised between 130� c. and 180� c. which equates to an equivalent duration tcalculated at 160� c. comprised between 10 h and 80 h. the second sequence is defined by a temperature t(t) lower than tand a hold time t at a temperature comprised between 100� c. and 130� c., which equates to an equivalent time tcalculated at 160� c. such that tcomprised between 0.3% and 15% of the equivalent duration tcalculated for the first sequence.



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