Navigation Links
Cool it, quick: Rapid cooling leads to stronger alloys
Date:7/10/2013

Oxford -- A team of researchers from the University of Rostock in Germany has developed a new way to rapidly produce high strength metallic alloys, at a lower cost using less energy than before. It's expected that this breakthrough will profoundly change how we produce components used in a diverse range of applications; including transport and medical devices.

The research, which appears in the latest issue of the open access journal Materials Today, reports on the first Spark Plasma Sintering (SPS) system with an integrated gas quenching mechanism, capable of alternating the phase compositions and retaining the smallest grain features inside a structured metallic alloy.

SPS is a technique used to fuse fine powders into a dense solid material, by placing powder into a mold (or die) and simultaneously applying pulses of electric current and mechanical pressure to it. By varying SPS cooling rates, it is possible to control the phase and grain sizes in a material, and so, to tune its mechanical properties. In their study, the team of researchers led by Dr. Eberhard Burkel, a Professor of Physics of New Materials, demonstrated that rapidly cooling a material directly after SPS fabrication can produce a material with enhanced hardness, strength and ductility.

The new rapid cooling SPS system is based on a commercially available design, modified to include a series of gas inlet nozzles. After sintering, most SPS systems are left to cool naturally, or are flooded with argon gas. The system blasts nitrogen gas into the chamber at high speeds, rapidly cooling the material.

To demonstrate the utility of the system, Grade 5 Titanium (Ti-6Al-4V) known as the "workhorse" of the titanium industry was produced at different cooling rates. The most-rapidly cooled alloy was found to be up to 12% harder than the naturally-cooled alloy, and with an improved ductility up to 343%. Ti-6Al-4V is the most common titanium alloy in use worldwide, with applications in the aerospace, biomedical and marine industries.

In their article the researchers explain, "This high-ductile alloy offers unprecedented opportunities for the easy manufacturing of complex shapes for biomedical and new engineering applications."

First author of the study, Dr. Faming Zhang, said "The system will play a major role in the production of novel materials, from metals, alloys, metal matrix composites to micro- and nanostructured semiconductors."


'/>"/>

Contact: Stewart Bland
s.bland@elsevier.com
44-186-584-3124
Elsevier
Source:Eurekalert

Related biology news :

1. Recent progress in gene-sensing strategies for rapid detection of foodborne pathogens
2. Hundreds of insect scientists migrating to Rapid City this week
3. Scientists alarmed by rapid spread of Brown Streak Disease in cassava
4. New ACS journal Environmental Science and Technology Letters to rapidly publish urgent research
5. Rapid climate change and the role of the Southern Ocean
6. Mobile LIDAR technology expanding rapidly
7. Psychemedics & TruTouch Announce US Sales/Marketing Distribution Agreement For TruTouch Technologies Rapid Optical Alcohol Detection & Biometric Test
8. Rapid, point-of-care tests for syphilis: The future of diagnosis
9. Imaging biomarker predicts response to rapid antidepressant
10. New study will predict how trees will adapt to rapid climate change
11. Tumors evolve rapidly in a childhood cancer, leaving fewer obvious tumor targets
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/29/2016)... , March 29, 2016 LegacyXChange, ... LegacyXChange "LEGX" and SelectaDNA/CSI Protect are pleased to announce ... used in a variety of writing instruments, ensuring athletes ... originally created collectibles from athletes on LegacyXChange will be ... of the DNA. Bill Bollander , ...
(Date:3/22/2016)... PROVO and SANDY, Utah ... (NSO), which operates the highest sample volume laboratory in ... Tute Genomics and UNIConnect, leaders in clinical sequencing informatics ... the launch of a project to establish the informatics ... NSO has been contracted by the ...
(Date:3/17/2016)... , March 17, 2016 ABI ... intelligence, forecasts the global biometrics market will reach ... impressive 118% increase from 2015. Consumer electronics, particularly ... embedded fingerprint sensors anticipated to reach two billion ... Dimitrios Pavlakis , Research Analyst at ...
Breaking Biology News(10 mins):
(Date:4/27/2016)... (PRWEB) , ... April 27, 2016 , ... ... Touch screen mobile devices with fingerprint recognition for secure access, voice recognition ... only a few ways consumers are interacting with biometrics technology today. But ...
(Date:4/27/2016)... ... 27, 2016 , ... NDA Partners Chairman Carl Peck, ... Expert Consultant. Mr. Clark was formerly a Vice President with US Pharmacopeia, ... molecule monographs based on analytical methods. NDA Partners Expert Consultants are top ...
(Date:4/27/2016)... ... 27, 2016 , ... Global Stem Cells Group and the University ... other research and development initiatives for potential stem cell protocol management for 2016 – ... Group executives began meeting to establish a working agenda and foster initiatives to promote ...
(Date:4/26/2016)... CA (PRWEB) , ... April 26, 2016 , ... ... healthcare, today announced that Ardy Arianpour has joined the company as Chief Business ... of experience bringing innovative genomic technologies to market, was most recently Chief Commercial ...
Breaking Biology Technology: