Isothermal oxidation tests were performed on Ti6242S (Ti—6% Al—2% Sn—4% Zr—2% Mo, 0.08% Si), Ti6246 Zr—6% 0.05% TiXT (Ti—0.45% Si) alloys and pure titanium in laboratory air at 560 °C, 600 °C 650 for 1000 h to compare their behaviors. This study aims highlight the role of molybdenum silicon resistance alloys. The results show that 6 wt.% Mo does not substantially change behavior compared alloy ...

The high entropy alloy containing refractory metals Mo-Nb-Ta-W has a body centered cubic structure, which is not surprising given the complete mutual solubility in BCC solid solutions of all pairs of the constituent elements. However, first principles total energy calculations for the binaries reveal a set of distinct energy minimizing structures implying the likelihood of chemically ordered lo...

Manipulating structure, defects and composition of a material at the atomic scale for enhancing its physical or mechanical properties is referred to as nanostructuring. Here, by combining advanced microscopy techniques, we unveil how formation of highly regular nano-arrays of nanoparticles doubles the strength of an Fe-based alloy, doped with Ti, Mo, and V, from 500 MPa to 1 GPa, upon prolonged...

The surface chemistry and thickness of the native oxide, hydroxide, modified sub-surface layer three Ni superalloys (alloy 59, 625, 718) were determined by synchrotron X-ray Photoelectron Spectroscopy (XPS) Reflectivity (XRR). Taking advantage radiation techniques, a procedure for normalizing photoelectron intensity was employed, which allowed accurate quantitative analysis revealing total oxid...

We here use first-principles calculations to investigate the phase stability of the hypothetical laminated material V2Ga2C and the related alloy (Mo1-xVx)2Ga2C, the latter for a potential parent material for synthesis of (Mo1-xVx)2C, a new two-dimensional material in the family of so called MXenes. We predict that V2Ga2C is thermodynamically stable with respect to all identified competing phase...

We investigated the effects of the additions of Zr and other alloying elements on the mechanical properties and microstructure in Cr-Mo plastic mold steels. The addition of alloying elements changed the microstructure of the normalized samples from the upper bainite to lower bainite due to the increased hardenability. The tempering temperature influenced the strength and hardness values, especi...

The reaction between adsorbed ethylene and methylene species has been investigated on a molybdenum-aluminum alloy grown from Mo(CO)(6) on a planar alumina film formed on a Mo(100) single crystal in ultrahigh vacuum. Di-sigma-bonded ethylene reacts with carbene species, formed on the surface from methylene iodide, to form a C(3) metallacycle. This predominantly decomposes to yield propylene, whi...

This paper investigated the improvement of mechanical properties for one most used biomaterials, titanium-based alloy. To improve its properties, molybdenum was chosen to be added Ti and Ti-Zr alloys through a blending process. After homogenization (12, 15) Mo Mo-6 Zr, compaction pressure sintering temperature were varied create pellets. Characterization has been done using scanning electron mi...

Successful development of metallic filters with high temperature oxidation/corrosion resistance for fly ash capture is a key to enabling advanced coal combustion and power generation technologies. Compared to ceramic filters, metallic filters can offer increased resistance to impact and thermal fatigue, greatly improving filter reliability. A beneficial metallic filter structure, composed of a ...