Qiang Wang's research while affiliated with Northeast University At Qinhuangdao Campus and other places
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Publications (4)
Cylinder-shaped Cu80 Ni20 alloy melt is undercooled and solidified by the combination of the electromagnetic levitation technique and the flux treatment method. Nearly constant temperature gradient of 8-10K/cm is realized for the cylindrical melts with different undercooling levels at the bottom ends. The experimental results reveal that with the i...
Zr-based bulk metallic glass was subjected to electro-less plating of (Ni–P)/graphite composite film in order to avoid cold welding in ultrahigh vacuum condition. The plated film consisted of Ni–P amorphous phase, fine nickel crystals and fine graphite particles. Measurements of the adhesion coefficient between the two sample surfaces contacted in...
The density functional theory based first-principles calculations and a recently proposed chemical bond method are used to investigate the elastic and compressibility properties of the rocksalt, wurtzite, and zinc-blende phases of ZnO. The calculated bulk moduli from these two means explain the discrepancy between the theoretical and experimental v...
The fluidity and filling ability of glass-forming Zr-based alloy melt in copper mould were investigated both theoretically
and experimentally. The major factors which affected the flowing behavior of the metallic melt in the mold were determined,
which provides the foundation for overcoming the contradiction between the filling and formation of amo...
Citations
... The results of the lattice constants a(Å), bulk modulus B (GPa) and its first pressure derivative B' for the ZnO, BeO, MgO with their related zinc blende ternary alloys derived from these calculations are presented in table 2. It is pertinent to note the existence of a noticeable lack of both theoretical and empirical results pertaining to the ternary and quaternary alloys under consideration, with the exception of theoretical data pertaining to the ternary alloy Mg 0.5 Zn 0.5 O [34]. In contrast, our findings of binary compounds ZnO, BeO, and MgO exhibit a noteworthy agreement with the results of previous theoretical and experimental investigations documented in the scientific literature [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48]. ...
... Rapid dendritic growth within highly undercooled liquid alloy has aroused great research interest, which significantly influences the microstructures, solute distribution and application performances of alloys [1][2][3][4][5]. The dendritic growth velocity is an important and fundamental parameter for revealing nonequilibrium solidification process and controlling the alloy properties [6][7][8][9][10]. ...
... Similar results have been reproduced by several authors: low and stable coefficient of friction (Han et al. 2008;) (approximately 0.1 or less against GCr5 for a load of 5 N Wu et al. 2006a) and 0.4 against carbon steel (Wu et al. 2006c) and limited wear rate that is improved by heat treatment (Wu et al. 2006d). ...
Reference: Electroless Composite Coatings
... Therefore, compared with conventional metallic materials, amorphous alloys have outstanding mechanical, physical, and chemical properties, such as high strength, high hardness, excellent wear resistance, superior corrosion resistance, lower Young's modulus, etc. [2]. This makes them have enormous potential applications in fields including aerospace, electronics, and biomedicine [3][4][5][6]. As a result, researchers have explored a variety of processing methods to fabricate amorphous alloys. ...