Zhiyong Meng’s Post

Application of #HighCarbonSilicon in ductile iron - Adjust the chemical composition: high-carbon silicon can increase the carbon content of liquid iron, so that it can reach the carbon equivalent range required for ductile iron, the carbon equivalent of general ductile iron is between 4.1% and 4.7%, which helps graphitization, improve the fluidity of liquid iron and self-reinforcing ability. - Reduce white tendency: Silicon is a strong graphitized element, silicon in high-carbon silicon can effectively reduce the white tendency of ductile iron, increase the amount of ferrite, refine eutectic clusters, improve the roundness of graphite balls, and then improve the mechanical properties of ductile iron.

"Understanding the effect of gangue elements is of critical importance to optimize the effciency of hydrogen-based direct reduction (HyDR) of iron ore, as one of the key steps towards climate-neutral steel production. Here, we demonstrate on the example of Si-doped Fe2O3, how thin films can be effectively utilized as a model system to facilitate systematic investigation of the solid-state reduction behavior. In-vacuo X-ray photoelectron spectroscopy (XPS) is used to probe the reduction kinetics by analyzing the chemical state of iron oxide thin films before and after annealing at 700◦ C in an Ar+5%H2 atmosphere. It is demonstrated that even low Si concentrations of 3.7 at.% inhibit the HyDR of Fe2O3 by the formation of a SiOx-enriched reduction barrier in the surface-near region." Lena Patterer Marcus Hans Daniel Primetzhofer Hauke Springer #metallurgy #ironmaking #hydrogen #ironoxidereduction #gangue

In the News & Views section of the October issue of Nature Materials Yasutoshi Iriyama highlighted our recent paper on lithium and sodium plating - thanks!   https://lnkd.in/eQwmghFJ We agree with his final concluding sentence: "𝘛𝘩𝘦 𝘫𝘰𝘶𝘳𝘯𝘦𝘺 𝘵𝘰 𝘴𝘵𝘢𝘣𝘪𝘭𝘪𝘻𝘦 𝘢𝘯𝘥 𝘤𝘰𝘯𝘵𝘳𝘰𝘭 𝘵𝘩𝘦 𝘮𝘪𝘤𝘳𝘰𝘴𝘵𝘳𝘶𝘤𝘵𝘶𝘳𝘦 𝘰𝘧 𝘵𝘩𝘦𝘴𝘦 𝘮𝘦𝘵𝘢𝘭𝘴 𝘪𝘯 𝘈𝘚𝘚𝘉𝘴 𝘪𝘴 𝘫𝘶𝘴𝘵 𝘴𝘵𝘢𝘳𝘵𝘪𝘯𝘨." Worth reading, and stay tuned - there is more to come! 🙂   Interested in more details? You can find our original publication under the following link:   https://lnkd.in/ernjDbt4

Learn about hydrogen distribution, location of pitting initiation, and coupling effect of hydrogen and precipitates on pitting in stainless steel sample in this article by Ming Liu, Guanghu Yao, Xuehan Wang, Lining Xu, Lang Jiao, Hang Su, and Anqing Fu: https://lnkd.in/g9EXAAKj #MaterialsScience #Corrosion #StainlessSteel #HydrogenEmbrittlement #PittingCorrosion #CorrosionResistance #Metallurgy #SurfaceEngineering #HydrogenEffect #PrecipitateStudy #HR3CSteel #CorrosionResearch #MetalScience #Electrochemistry

#metal #chemical https://lnkd.in/eQVbPsZU info@vimaterial.de Research often explores modifications to TiN’s structure, like doping or creating TiN composites, to enhance specific properties such as electrical conductivity, hardness, or thermal stability. Spherical TiN powders with controlled size distribution are investigated for optimized performance in these areas.

Recrystallized silicon carbide ceramic products have good high-temperature strength, which increases with increasing temperature. They also have good thermal conductivity, thermal shock stability, oxidation resistance, and acid and alkali corrosion resistance. Therefore, this material can be made into products of various geometric shapes according to different uses. The main features of recrystallized silicon carbide products: (1) Light weight, high high-temperature strength, and long service life; (2) Good thermal shock resistance, which can adapt to the rapid firing of ceramic products; (3) No firing shrinkage, no deformation after long-term use, which can improve the qualified rate of fired products and save energy.

Fine particle graphite electrode, 2㎜ granularity, 400㎜-500㎜-600㎜ length 2100㎜

Microstructural evolution in lithium plating process and its effect on the calendar storage life https://lnkd.in/gpGvzQYq