Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > News > Nanobubbles cause metal fatigue

May 15th, 2005

Nanobubbles cause metal fatigue

Abstract:
Metals with nanoscale grain sizes can be stronger than ordinary metals, but they may also be highly susceptible to fatigue: the gradual growth of cracks under repeated cycles of stress and release. Computer simulations of the atomic-scale processes involved in the cracking of a nanocrystalline metal have now helped to clarify the reasons for this Achilles' heel.

The key problem that Diana Farkas and her colleagues at Virginia Polytechnic Institute and State University in Blacksburg have overcome in conducting their investigation is how to bridge the different scales at which the issue of cracking must be considered. Although the basic process by which a crack propagates through a metal involves sliding of individual planes of atoms in the crystalline material, the big picture becomes apparent only when one draws back to the scale of many tens of nanometres which encompasses enormous numbers of atoms.

Source:
* Nature

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Virginia Polytechnic Institute

Related News Press

Materials/Metamaterials

Researchers predict material with record-setting melting point July 27th, 2015

Reshaping the solar spectrum to turn light to electricity: UC Riverside researchers find a way to use the infrared region of the sun's spectrum to make solar cells more efficient July 27th, 2015

Industrial Nanotech, Inc. Provides Update on PCAOB Audited Financials July 27th, 2015

Global Corrosion Resistant Nano Coatings Market To 2015: Acute Market Reports July 27th, 2015

Announcements

Researchers predict material with record-setting melting point July 27th, 2015

Reshaping the solar spectrum to turn light to electricity: UC Riverside researchers find a way to use the infrared region of the sun's spectrum to make solar cells more efficient July 27th, 2015

Industrial Nanotech, Inc. Provides Update on PCAOB Audited Financials July 27th, 2015

Global Corrosion Resistant Nano Coatings Market To 2015: Acute Market Reports July 27th, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project