Page 30 - My FlipBook

-Friendly Process for the Preparation of Corrosion Resistant
Sealed Anodized Coatings on Aircraft Aluminium Alloy

Anodized model components

Atmospheric Corrosion Testing Yard

Outdoor Exposure study (for 18 months) of anodized aluminum
alloys at Coastal area- Mandapam Camp, Rameshwaram

A chromate free pretreatment Level/Scale of Development : TRL-7
process for the corrosion protection
of aerospace aluminum alloy. Panels (10”X3”) qualified for > 3000
h of continuous salt spray test as per
Year of Development : 2015 ASTM B117.

Application alloy structural ¡¡ Process Clearance from CE-
MILAC (RCMA (F&F-FOL)/
¡¡ Aluminum NAL/223-06/443/C-01/2018/01;
components dated 07/05/2018) has been
obtained.
Salient Technical Features
¡¡ Collaborative efforts are in pro-
¡¡ The coating system is chromate gress between CSIR- NAL and
free corrosion protective system ARDC, HAL to establish 5000 Ltrs
for aluminum alloys with societal anodization facility at ARDC, HAL.
impact.
¡¡ Discussions held with various
¡¡ This process can also be used in divisions of HAL and ADA for
automobile sectors. Type Approval of the process by
CEMILAC.

AS 25