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World's first commercial nanostructured bulk metal

Date:
November 10, 2013
Source:
National Institute for Materials Science
Summary:
Scientists are introducing the world’s first bulk nanostructured metal in commercial production.

FFe–0.98C–1.46Si–1.89Mn–0.26Mo–1.26Cr–0.09V wt%, transformed at 200 C for 15 days. Bright-field transmission electron micrograph
Credit: CC-BY Bhadeshia, 2013

In a paper published in the Science and Technology of Advanced Materials, Bhadeshia introduces the world's first bulk nanostructured metal in commercial production.

When we think of structural materials, we usually imagine something big, strong and bulky, like steel beams in bridges and buildings, and while we are becoming familiar with composites reinforced with carbon nanotubes and nanofibers, it is yet hard to believe that the structure of bulk homogenous metals can be controlled at the nanoscale with commercial-scale production

In a paper published in the Science and Technology of Advanced Materials, Bhadeshia introduces the world's first bulk nanostructured metal in commercial production. The nanostructure-controlled high-strength bainitic steel has the thickness of bainitic ferrite platelets controlled between 20 and 50 nm.

The review paper explains why nanostructure plays an important role in strengthening materials, and the conditions required to design and develop such "nanostructured" materials. In particular, the biggest challenge is to keep the production cost as low as that of bottled water.

So, what magic is needed to produce low-cost nanostructured bulk steel? The answer is simple -- keep the bulk at 200 C for 10 days, which will lead to the formation of plate-like bainitic structure. One deficiency of the material is that it is yet difficult to weld, but the author lays out possible solutions to overcome this.


Story Source:

The above story is based on materials provided by National Institute for Materials Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. H K D H Bhadeshia. The first bulk nanostructured metal. Science and Technology of Advanced Materials, 2013; 14 (1): 014202 DOI: 10.1088/1468-6996/14/1/014202

Cite This Page:

National Institute for Materials Science. "World's first commercial nanostructured bulk metal." ScienceDaily. ScienceDaily, 10 November 2013. <www.sciencedaily.com/releases/2013/11/131110204310.htm>.
National Institute for Materials Science. (2013, November 10). World's first commercial nanostructured bulk metal. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2013/11/131110204310.htm
National Institute for Materials Science. "World's first commercial nanostructured bulk metal." ScienceDaily. www.sciencedaily.com/releases/2013/11/131110204310.htm (accessed July 31, 2014).

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