Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Defect and pore concentration simulation in an amorphous alloy of boron and cobalt

23.03.2006


Simulation of local microstructure of amorphous alloys



Modern engineering places increasing demands on components. It is the job of the designers and materials scientists to create components that are up to the challenge.

Many new materials and components can be time consuming and expensive to manufacture with costs escalating if samples or trials prove unsuitable. Computer modelling goes some way to minimizing the developments costs and fast tracking development.


Some of the more sophisticated computer modelling programs are able to model the material and its structure before test samples even are produced. This includes the location of flaws and prediction of lifetime and failure.

In the case of amorphous materials, pores and clusters of pores can radically change the properties of the material when compared to a solid crystal. In this paper by Pham Khac Hung, Do Minh Nghiep, Hoang Van Hue and Nguyen Van Hong from Hanoi University of Technology, they were able to simulate the microstructure in the amorphous system CoxB1-x to provide information on pore clusters, localized structural characteristics and pore concentration.

Their calculated results corresponded with experimental results and found the number of pores was largely influenced by changes in boron concentration. The calculation of angle, pore number, atom number and free volume distributions reveals that increasing the boron concentration in the system disorders the structure of amorphous alloys. It also showed that there were more pores found around cobalt atoms than around boron atoms.

Dr. Ian Birkby | EurekAlert!
Further information:
http://www.azom.com/Details.asp?ArticleID=3306

More articles from Materials Sciences:

nachricht Osaka university researchers make the slipperiest surfaces adhesive
18.10.2017 | Osaka University

nachricht Think laterally to sidestep production problems
17.10.2017 | King Abdullah University of Science & Technology (KAUST)

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Osaka university researchers make the slipperiest surfaces adhesive

18.10.2017 | Materials Sciences

Space radiation won't stop NASA's human exploration

18.10.2017 | Physics and Astronomy

Los Alamos researchers and supercomputers help interpret the latest LIGO findings

18.10.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>