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3D printing martensitic steel technology breakthrough
According to foreign media reports, researchers from Texas A&M University and Air Force Research Laboratory (AFR) have developed a defect-free 3D printing technology for martensitic steel parts. Compared with similar steels, martensitic steels are stronger and more cost-effective, and are used in aerospace, automotive and defense industries.
2021-11-26
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Ultra-high stability nanocrystals found in metals
Nanometals have poor stability due to the introduction of a large number of grain boundaries. Generally speaking, the crystal grain growth temperature of nanocrystals is much lower than the recrystallization temperature of coarse crystals, and some nanocrystal pure metals grow up even at room temperature.
2021-11-26
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3D printer has become a global anti-epidemic artifact
In 2020, the new coronavirus swept the world, affecting all aspects of the world's economy, transportation, and life on a large scale. The severe epidemic has put people in a tight state. Among the materials for safety protection, masks, eye masks, protective clothing, ventilators, etc.
2021-11-26
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SUSTech breaks the "short board" of titanium alloys that are not wear-resistant
Sliding wear is one of the important factors affecting the service life of metal components. Therefore, the design and development of new high-strength, super wear-resistant alloy materials is essential to ensure the reliability, durability and efficiency of engineering components that are used in harsh operating conditions.
2021-11-26
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New aluminum alloy layered structure improves strength and plasticity at the same time
Strength and plasticity have always been contradictory issues that materials scientists hope to solve. This article proposes a novel method that improves the strong plasticity of aluminum alloys at the same time.
2021-11-26
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3D printed elevator button device was born
Mr. Zhao, a resident of Building No. 9 in the North Community of Haidian South Road, Haidian Street, Beijing, loves to delve into research on weekdays, and often makes brilliant inventions.
2021-11-26
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New type of alloy coating, will not crack or oxidize at 800℃ in air for 200 hours
The lack of oxidation resistance of titanium alloys when exposed to high temperatures greatly limits its application. This paper uses the inter-diffusion and mutual reaction of the interface during the 800°C cyclic oxidation process to design a special double-layer nitride coating
2021-11-26
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The development of lightweight high-temperature alloys will help promote natural gas vehicles
Compared with gasoline, natural gas burns cleaner and more efficiently, produces about 25% less carbon dioxide, and lowers the cost of refining and processing.
2021-11-26
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3D printing to help make a single ventilator treat four patients
According to foreign media TechCrunch, the imminent shortage of ventilators in American hospitals is likely to be a crisis, but as the number of patients with severe symptoms of COVID-19 and the need to be hospitalized increases, this will become more severe. T
2021-11-26
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Popular 3D printing materials with higher cellulose content
According to foreign media reports, cellulose is a natural polymer and the main component of plant cell walls. It is being used by more and more people as an eco-friendly and biocompatible 3D printing material. Now, scientists have invented a way to print complex objects with higher cellulose content than ever before.
2021-11-25
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Secret deformation mechanism of nanocrystalline aluminum
Nanocrystalline metals with a grain size of less than 100 nm usually have unique properties, which are better than similar coarse-grained metals. Aluminum (Al) is a metal with a wide range of uses. It is considered an indispensable engineering material due to its high specific strength, light weight and corrosion resistance.
2021-11-25
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Is 3D printing a threat to forging?
On March 7th, forging ironware, mankind has a history of about 6,000 years, and many places still retain the oldest metal processing and forging technology.
2021-11-25
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