Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Ben Zeng"'
Publikováno v:
Advances in Civil Engineering, Vol 2023 (2023)
At present, research on prefabricated piers is limited to the axial compression state. However, many piers are under small eccentric compression in practical engineering. In this article, the seismic performance of ultrahigh performance concrete (UHP
Externí odkaz:
https://doaj.org/article/0c98dfa6214a4cd2886db1540239381c
Publikováno v:
Journal of Materials Science. 47:2000-2004
The hot-tearing susceptibility of Mg–6Al–0.5Mn alloy decreased with the increasing Sr content (≤0.2 wt%). The related mechanism is described as follows: Sr refines the grain and reduces the tendency of divorced eutectic; Sr decreases the eutect
Publikováno v:
Applied Mechanics and Materials. 79:25-28
The influences of Ca addition (2Ca phase on interdendritic boundary and refine grain size. Ca addition evidently increases the yield strength but decreases the elongation of AZ91D alloy. The crack initiations of the AZ91D alloy and Ca-contained alloy
Publikováno v:
Journal of Shanghai Jiaotong University (Science). 16:141-144
Rolling force and temperature field are important parameters in the hot rolling process of plate steel. Most researchers use ANSYS/LS-DYNA and MSC.Marc to simulate the hot rolling process, however, software DEFORM-3D is not used widely in this field.
Publikováno v:
Transactions of Nonferrous Metals Society of China. 17:887-892
Influences of the three melt treatment processes (namely, refinement with carbon inoculation, electromagnetic stirring and ”refinement & electromagnetic stirring” processing) on the microstructures of AZ91D alloy were explored experimentally. The
Publikováno v:
Journal of Alloys and Compounds. 437:317-321
Ca addition into magnesium alloy is one of the most effective ways to improve high temperature and mechanical properties of magnesium alloys. The influence of calcium on refinement of AZ91D alloy was investigated by optical microscopy, scanning elect
Publikováno v:
Journal of Rare Earths. 25:227-232
Small addition of mischmetal (MM) into aluminum alloys can lead to grain refinement. However, it is still uncertain whether the same effect applies to Mg-Al alloys. This work indicated that small amount of mischmetal addition ranging from 0.1% to 1.2
Publikováno v:
Scripta Materialia. 53:1077-1082
Ca addition affects the solidification process of AZ91D alloy, such as elevating the tendency of divorce eutectic and the formation temperature of Al2Ca phase. Sr addition inhibits the influence of Ca addition on the solidification process, therefore
Publikováno v:
Journal of Materials Science. 40:2931-2936
In automotive components, there is a significant weight saving potential in converting to magnesium alloys. Adding Ca element is one of the most effective ways to improve the temperature and mechanical properties of magnesium alloy. However, as hot-c
Publikováno v:
2008 2nd International Conference on Bioinformatics and Biomedical Engineering.
Lower removal rates of ammonium nitrogen in the constructed wetlands were mainly caused by the lack of dissolved oxygen (DO). The traditional wavy subsurface-flow constructed wetland was modified to install an aeration tube in the third wave interval