The recent news stirring the scientific community is the development of a new method of Nickel alloy coating deposition. This innovative method, put forth by an autonomous Research and Development Centre of the Department of Science and Technology (DST), proposes to replace the environmentally harmful process of chrome plating. This eco-friendly alternative has widespread implications for various industries, including aerospace, automotive, and food processing.
Understanding Chrome Plating
Chrome plating is a known technique that involves the deposition of a thin chromium layer on a metal surface. The process utilises electricity, in an activity called electroplating. The resulting chromium layer produced is shiny, hard, and resistant to corrosion, making it a popular choice for industrial applications, automotive parts, and even household fixtures like door handles.
However, there is a significant disadvantage to this process. It involves the use of hexavalent chromium, a recognised human carcinogen. This chemical can lead to breathing difficulties, skin irritation, and even lung cancer upon inhalation. In addition, ingestion can be poisonous, and contact with the skin can cause allergic reactions.
Insight into Nickel Alloy Coating
Conversely, Nickel alloy coating provides a combination of corrosion and wear resistance that is uniquely advantageous. Its brightness and luster add aesthetic appeal, while its excellent adhesion properties make it an effective ‘undercoat’ for other coatings, including chromium.
This type of coating finds application across numerous industries:
Aerospace Application
In the aerospace industry, nickel alloy coatings serve to protect aircraft components from corrosion and wear. This not only enhances the durability of these parts but also extends their lifespan significantly.
Automotive Industry Use
Similarly, in the automotive industry, nickel alloy coatings are applied to auto parts to safeguard them from corrosion and wear. This practice improves the durability and lifespan of these parts, enhancing the efficiency of the vehicle.
Usage in Food Processing
In the food processing industry, nickel alloy coatings are applied to equipment to protect them from corrosion. Moreover, this coating provides a non-stick surface, a characteristic particularly beneficial in this industry.
This remarkable potential of Nickel alloy coating to replace chrome plating is a promising step forward in environmental conservation. It’s a testament to how scientific advancements can pave the way for greener industrial practices.