The method of improving the mechanical properties of metal materials by refining grains is called grain refinement strengthening, and industrially, the strength of materials is improved by refining grains. principle Usually metals are polycrystals composed of many grains, and the size of grains can be...
Design/methodology/approach - Samples were prepared from plates hard faced with various filler metals. Samples were then subjected to experimental testing - testing of tribological properties and hardness and microstructure. Testing was done in conditions similar to real ones - with a sliding speed of...
At Metal Supermarkets, we supply a wide range of metals for a variety of applications. Our stock includes: mild steel, stainless steel, aluminum, tool steel, alloy steel, brass, bronze and copper. We stock a wide range of shapes including: bars, tubes, sheets, plates and more. And we ...
Review of recent research on AlCoCrFeNi high-entropy alloy. Metals 11, 1302 (2021). Article CAS Google Scholar Yeh, J. W., Chang, S. Y., Hong, Y. D., Chen, S. K. & Lin, S. J. Anomalous decrease in X-ray diffraction intensities of Cu-Ni-Al-Co-Cr-Fe-Si alloy systems ...
et al. Formation of bimetallic clusters in superfluid helium nanodroplets analysed by atomic resolution electron tomography. Nat. Commun. 6, 8779 (2015). Google Scholar Yang, Y. et al. Deciphering chemical order/disorder and material properties at the single-atom level. Nature 542, 75–79 (...
We do this in the context of the four-graviton amplitude which is believed to obey strict constraints in the high-energy Regge limit. We also describe nontrivial constraints on corrections to the graviton three-point coupling and on inelastic graviton processes. 简介:Zvi Bern(生于1960年9月17日...
To analyze the degradation properties of four oil-degradation fungi, the mycelial growth rates on the solid medium, the dry mycelial weights from the liquid medium and the degradation rates of the crude oil in the liquid medium and the oil in the soil were deter-mined. The mycelial growth ...
A liquid metal with low melting point around room temperature was recently identified as a powerful coolant of driving heat away because of its superior thermo-physical properties and the unique ability to be driven efficiently by a completely silent electromagnetic pump. However, the adoption of ...
Four QSOs with redshifts z = 0.6185, 0.6267, 0.850 and 1.665 have been found in the central 33.4 arcmin square of the field at 22h.05, –18°.91 surveyed by Savage & Bolton and Krug, Morton & Tritton. The first two QSOs are separated by 6.8 arcmin and may be associated with ...
Optimizing the shape of nanostructures and nano antennas for specific optical properties has evolved to be a very fruitful activity. With modern fabrication tools a large variety of possibilities is available for shaping both nanoparticles and nanocavities; in particular nanocavities in thin metal films ...