Featured Research

from universities, journals, and other organizations

New discovery paves the way for using super strong nanostructured metals in cars

Date:
July 22, 2011
Source:
Risoe National Laboratory for Sustainable Energy, the Technical University of Denmark
Summary:
Super strong nanometals are beginning to play an important role in making cars even lighter, enabling them to stand collisions without fatal consequences for the passengers. A student has discovered a new phenomenon that will make nanometals more useful in practice.

Super strong nanometals are beginning to play an important role in making cars even lighter, enabling them to stand collisions without fatal consequences for the passengers. A PhD student at Risψ DTU has discovered a new phenomenon that will make nanometals more useful in practice.
Credit: Image courtesy of Risoe National Laboratory for Sustainable Energy, the Technical University of Denmark

Super strong nanometals are beginning to play an important role in making cars even lighter, enabling them to stand collisions without fatal consequences for the passengers. A PhD student at Risψ DTU has discovered a new phenomenon that will make nanometals more useful in practice.

Today, the body of an ordinary family car consists of 193 different types of steel. The steel for each part of the car has been carefully selected and optimised. It is important, for example, that all parts are as light as possible because of the fuel consumption, whereas other parts of the car have to be super strong in order to protect passengers in a collision.

Super strong nanostructured metals are now entering the scene, aimed at making cars even lighter, enabling them to stand collisions in a better way without fatal consequences for the passengers. Research into this field is being conducted worldwide. Recently, a young PhD student from the Materials Research Division at Risψ DTU took research a step further by discovering a new phenomenon. The new discovery could speed up the practical application of strong nanometals and has been published in the journal Proceedings of the Royal Society in London.

The research task of the young student, Tianbo Yu, is to determine the stability in new nanostructured metals, which are indeed very strong, but also tend to become softer, even at low temperatures. This is due to the fact that microscopic metal grains of nanostructured metals are not stable -- a problem of which Tianbo Yu's discovery now provides an explanation.

The fine structure consists of many small metal grains. The boundaries between these metal grains can move, also at room temperature. At the same time a coarsening of the structure takes place and the strength of the nanometal is consequently weakened. Tianbo Yu's has now shown that the boundaries of the grains can be locked, when small particles are present and that the solution is technologically feasible. This has paved the way for car components to be made of nanometals.

"We are cooperating with a Danish company and also a Danish consulting engineering company with the purpose of developing light and strong aluminium materials with a view to their application in light vehicles where especially deformation at high rate as in a collision is in focus. The new findings will be included in this work," says Dorte Juul Jensen, head of division and Dr. Techn. She is happy that the excellent findings also have practical applications.

Tianbo Yu comes from Tsinghua University in Beijing -- a leading university within technical scientific research. His studies in Denmark have been financed by the Danish National Research Foundation, which also supports a Danish-Chinese basic research centre in the Materials Research Division, where Tianbo Yu is now employed.

Tianbo Yu is a dedicated and talented researcher, who wishes to pursue a research career in Denmark. His wife is a student at RU (Roskilde University) and along with their studies, they both have decided to put a lot of effort into learning Danish; and they have become good at it. -- All in all, a success for science as well as globalisation.


Story Source:

The above story is based on materials provided by Risoe National Laboratory for Sustainable Energy, the Technical University of Denmark. Note: Materials may be edited for content and length.


Journal Reference:

  1. T. Yu, N. Hansen, X. Huang. Recovery by triple junction motion in aluminium deformed to ultrahigh strains. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2011; DOI: 10.1098/rspa.2011.0097

Cite This Page:

Risoe National Laboratory for Sustainable Energy, the Technical University of Denmark. "New discovery paves the way for using super strong nanostructured metals in cars." ScienceDaily. ScienceDaily, 22 July 2011. <www.sciencedaily.com/releases/2011/07/110721101456.htm>.
Risoe National Laboratory for Sustainable Energy, the Technical University of Denmark. (2011, July 22). New discovery paves the way for using super strong nanostructured metals in cars. ScienceDaily. Retrieved August 2, 2014 from www.sciencedaily.com/releases/2011/07/110721101456.htm
Risoe National Laboratory for Sustainable Energy, the Technical University of Denmark. "New discovery paves the way for using super strong nanostructured metals in cars." ScienceDaily. www.sciencedaily.com/releases/2011/07/110721101456.htm (accessed August 2, 2014).

Share This




More Matter & Energy News

Saturday, August 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Tesla, Panasonic Ink Deal To Make Huge Battery 'Gigafactory'

Tesla, Panasonic Ink Deal To Make Huge Battery 'Gigafactory'

Newsy (July 31, 2014) — The deal will help build a massive battery factory that Tesla says will produce 500,000 lithium batteries by 2020. Video provided by Newsy
Powered by NewsLook.com
Britain Testing Driverless Cars on Roadways

Britain Testing Driverless Cars on Roadways

AP (July 30, 2014) — British officials said on Wednesday that driverless cars will be tested on roads in as many as three cities in a trial program set to begin in January. Officials said the tests will last up to three years. (July 30) Video provided by AP
Powered by NewsLook.com
7 Ways to Use Toothpaste: Howdini Hacks

7 Ways to Use Toothpaste: Howdini Hacks

Howdini (July 30, 2014) — Fresh breath and clean teeth are great, but have you ever thought, "my toothpaste could be doing more". Well, it can! Lots of things! Howdini has 7 new uses for this household staple. Video provided by Howdini
Powered by NewsLook.com
Smoked: 2015 Ducati Diavel Vs 2014 Chevy Corvette Stingray Drag Race

Smoked: 2015 Ducati Diavel Vs 2014 Chevy Corvette Stingray Drag Race

Cycle World (July 30, 2014) — The Bonnier Motorcycle Group presents Smoked; a three part video series. In this episode the 2015 Ducati Diavel takes on the 2014 Chevy Corvette Stingray Video provided by Cycle World
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins