Shulou(Shulou.com)11/24 Report--

CTOnews.com, April 25 (Xinhua)-- scientists at National Aeronautics and Space Administration and Ohio State University have jointly developed a 3D printing process to produce the most elastic new alloy to date, which is more than 600 times more resistant to compression than the current alloy. The research is published in the latest issue of the journal Nature.

The alloy, called GRX-810, has excellent heat resistance, oxidation resistance and stress resistance, and can be used to make high temperature parts for aircraft and spacecraft. The alloy, which is manufactured by 3D printing and oxide dispersion technology, is twice as strong as existing alloys, 1000 times more durable and 600 times more resistant to stress.

High resolution characterization of GRX-810 microstructure GRX-810 is a kind of oxide dispersion strengthening alloy, that is, particles containing oxygen atoms are dispersed in the alloy to improve its strength. The alloy is suitable for making high-temperature parts in aerospace, such as the interior of aircraft and rocket engines, because they can withstand more pressure under harsher conditions. Currently, 3D-printed superalloys can withstand temperatures of 2000 degrees Fahrenheit, while GRX-810 can withstand higher temperatures and are less likely to oxidize.

NASA researchers used computer simulation and laser powder bed melting technology to quickly find the ideal composition of GRX-810. Using nickel, cobalt and chromium-based alloys as raw materials, they added yttrium oxide powder layer by layer in the 3D printing process, and then heated it with laser to fuse the oxide particles with the alloy. This forms layers of alloys containing ceramic materials. NASA also partnered with 3D Systems to test parts made by GRX-810 on the company's metal 3D printing platform, confirming the superior performance of this new material.

NASA says the new alloy is a major achievement and could be one of the most successful technology patents ever made by the NASA Glenn Research Center. They hope to use this superalloy to produce stronger and more durable aerospace parts in the near future.

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