Stainless Steel SS317L
To mark the International Year of the Periodic Table of Chemical Elements we’re taking a look at how researchers study some of the elements in their work.
Today’s it’s titanium, a metal known for its strength and lightness so it’s ideal for making replacement hips, knees and other parts of our bodies, but it’s also used in other industries.
Are you looking for Stainless Steel SS317L I’ll tell you at the end of the article.
Titanium gets its name from the Titans of ancient Greek mythology but this thoroughly modern material is well suited to a huge range of high-tech applications.
With the chemical symbol Ti and an atomic number of 22, titanium is a silver-coloured metal valued for its low density, high strength, and resistance to corrosion.
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I first studied titanium via a Master’s degree at the Institute of Metal Research in the Chinese Academy of Sciences in 1999. One of my projects was to investigate the formation of titanium alloys for their high-strength characteristics.
Since then, the applications for this metal have grown exponentially, from its use (as titanium dioxide) in paints, paper, toothpaste, sunscreen and cosmetics, through to its use as an alloy in biomedical implants and aerospace innovations.
Particularly exciting is the perfect marriage between titanium and 3D printing.
Custom design from 3D printing
Titanium materials are expensive and can be problematic when it comes to traditional processing technologies. For example, its high melting point (1,670℃, much higher than steel alloys) is a challenge.
The relatively low-cost precision of 3D printing is therefore a game-changer for titanium. 3D printing is where an object is built layer by layer and designers can create amazing shapes.
This allows the production of complex shapes such as replacement parts of a jaw bone, heel, hip, dental implants, or cranioplasty plates in surgery. It can also be used to make golf clubs and aircraft components.
Even beer containers benefit from 3D printing with titanium.
The CSIRO is working with industry to develop new technologies in 3D printing using titanium. (It even made a dragon out of titanium.)
Advances in 3D printing are opening up new avenues to further improve the function of customised bodypart implants made of titanium.
Such implants can be designed to be porous, making them lighter but allowing blood, nutrients and nerves to pass through and can even promote bone in-growth.
Safe in the body
Titanium is considered the most biocompatible metal – not harmful or toxic to living tissue – due to its resistance to corrosion from bodily fluids. This ability to withstand the harsh bodily environment is a result of the protective oxide film that forms naturally in the presence of oxygen.
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https://titanium.co.id/2016/09/26/special_stainless_steel/
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