Business research news Return to previous page
Article Released Fri-8th-November-2013 00:56 GMT
Contact: Mikiko Tanifuji Institution: National Institute for Materials Science
 World’s first commercial nanostructured bulk metal

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

Image3
Large-scale manufacture of nanostructured steel shafts.
Copyright : Photograph courtesy of Rolls Royce Plc.
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, where the thickness of bainitic ferrite platelets is controlled between 20 and 50 nm is shown in the figures below.

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.


Research paper: The first bulk nanostructured metal
H K D H Bhadeshia
Sci. Technol. Adv. Mater. Vol. 14 (2013) p. 014202.
Published in March 11, 2013 at http://iopscience.iop.org/1468-6996/14/1/014202
doi:10.1088/1468-6996/14/1/014202

Media contact:
Mikiko Tanifuji,
National Institute for Materials Science, Tsukuba, Japan
E-mail: stam_office@nims.go.jp
Tel. +81-(0)29-859-2494
Image2
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
Copyright : CC-BY Bhadeshia, 2013
Image1
Large-scale manufacture of nanostructured steel plates.
Copyright : Photograph courtesy of Tata Steel

Associated links

Journal information

Science and Technology of Advanced Materials

Keywords associated to this article: nanotechnology, bulk metal, commercial production
Login
Password reminder.
Create Account...
Focus On...

Focus on...

Biodiversity

 
Translate this Page...