- Write by:
-
Wednesday, January 30, 2019 - 10:13:35 AM
-
1045 Visit
-
Print
Mining News Pro - Engineers from UCLA have developed a way to make an aluminum alloy known as AA 7075 so strong that it can be welded without breaking.
According to Mining News Pro - In a paper published in Nature Communications, the researchers explain that they achieved such result by infusing titanium carbide nanoparticles into AA 7075 welding wires, which are used as the filler material between the pieces being joined.
First discovered in the 1980s in what is now Kyrgyzstan, titanium carbide occurs in nature as a form of the very rare mineral khamrabaevite or Ti,V,Fe.
According to the UCLA engineers, AA7075 was developed in the 1940s and has long held promise for use in automobile manufacturing because it is nearly as strong as steel and has just one-third of the weight. However, it is almost impossible to weld together using the technique commonly used to assemble body panels or engine parts because when it is heated, its molecular structure creates an uneven flow of its constituent elements — aluminum, zinc, magnesium and copper — which results in cracks along the weld.
But using the new approach, the researchers produced welded joints with a tensile strength up to 392 megapascals. In a press release, they said that, by comparison, an aluminum alloy known as AA 6061 that is widely used in aircraft and automobile parts, has a tensile strength of 186 megapascals in welded joints.
In addition to the method they employed, the experts say that if post-welding heat treatments are also applied, AA 7075 joints could see an increase in their strength of up to 551 megapascals, which is comparable to steel.
“The new technique is just a simple twist, but it could allow widespread use of this high-strength aluminum alloy in mass-produced products like cars or bicycles, where parts are often assembled together,” said Xiaochun Li, the study’s principal investigator, in the media statement. “Companies could use the same processes and equipment they already have to incorporate this super-strong aluminum alloy into their manufacturing processes, and their products could be lighter and more energy efficient, while still retaining their strength.”
Short Link:
https://www.miningnews.ir/En/News/332054
A prefeasibility study for Predictive Discovery’s (ASX: PDI) Bankan gold project in Guinea gives it a net present value ...
The London Metal Exchange (LME) on Saturday banned from its system Russian metal produced on or after April 13 to comply ...
Iron ore futures prices drifted higher on Thursday as the latest soft data from top consumer China triggered renewed ...
Rio Tinto said on Wednesday it is teaming up with a global venture studio and start-up investor to back the development ...
Outflows from global physically backed gold exchange traded funds (ETFs) continued for a 10th month in March, but at a ...
Vietnam’s top miner Vinacomin plans to invest 182 trillion dong ($7.3 billion) to ramp up its alumina-aluminum ...
Copper jumped to its highest intraday price since January 2023 as the bellwether industrial metal faces rising tighter ...
Australia’s Fortescue said on Monday it would form a joint venture with OCP Group to supply green hydrogen, ammonia and ...
BMO Bank quietly dropped its policy restricting lending to the coal industry in late 2023, helping it avoid being ...
No comments have been posted yet ...