microstructure and mechanical properties of molybdenum
Effect of Molybdenum on the Microstructure and Mechanical
The influence of Mo addition on the microstructure and mechanical properties of the TiC-Fe cermets has been studied. The specimens with different contents of Mo (4-8 wt. ) added into the TiC-Fe cermets were fabricated by conventional powder metallurgy and vacuum sintered at temperatures of 1440 °C. The microstructure and mechanical properties such as bending strength impact toughness
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We have synthesized titanium-based alloys containing molybdenum and tantalum elements by powder metallurgy. The microstructure the residual porosity and the mechanical properties of the sintered Ti-Mo and Ti-Ta-Mo alloys were investigated by using optical and electronic microscopy X-ray diffraction microhardness and compression tests.
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Microstructure and Mechanical Properties of a Fiber Welded Socket-Joint Made of Powder Metallurgy Molybdenum Alloy June 2019 MetalsOpen Access Metallurgy Journal 9(6) 640
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PROCESSING MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ZIRCONIUM DIBORIDE-MOLYBDENUM DISILICIDE CERAMICS AND DUAL COMPOSITE ARCHITECTURES by RYAN JOSEPH GROHSMEYER A DISSERTATION Presented to the Faculty of the Graduate School of the MISSOURI UNIVERSITY OF SCIENCE AND TECHNOLOGY In Partial Fulfillment of the
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different mechanical properties are obtained after sintering. This paper gives a general overview of the properties and microstructures that are obtained for sinter-hardening materials. Focus is paid on PM materials prealloyed with chromium molybdenum and nickel with
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In order to study the effects of La 2 O 3 content and rolling on microstructure and mechanical properties of Mo-La 2 O 3 alloys Mo-0.5 (1 ) La 2 O 3 alloys were prepared by liquid-solid doping technique subsequently rolled either by a single-direction rolling or a cross-rolling. As a result three different materials were prepared for this study.
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The present investigation has two main objectives first is optimization of welding process parameters of submerged arc welding (SAW) using Taguchi philosophy and second is to improve the mechanical properties such as strength and microhardness of weld joint by alloying with varying amounts of molybdenum. For optimization of welding process parameters Taguchi philosophy have been
Get PriceTHE MECHANICAL PROPERTIES OF URANIUM-MOLYBDENUM
The tensile properties and hardness of uranium-molybdenum alloys in the composition range 0 to 14 wt. molybdenum have been studied at room and elevated temperatures. At lower concentrations the breakdown of the gamma solid solution to unstable microstructures leads to pronounced aging effects.
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Aug 30 2019 · Diffusion bonding of titanium–zirconium–molybdenum (TZM) and Ti 2 AlNb with and without a Ni interlayer is studied and microstructure residual stress and mechanical properties of the joints are investigated. The results show that cracks appear in the TZM substrate near the joint during the direct diffusion‐bonding process owing to detrimental residual stress from coefficient of
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The study focuses on alloy composition and attendant mechanical properties and microstructure. In addition processing routes to achieve bainitic and mixed (chromium molybdenum and vanadium) are added to the same steel (addition levels of 1.19 0.50 and 0.22 w/o respectively) the cooling rate necessary to achieve bainite during
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Planar molybdenum targets were fabricated by low-pressure plasma spraying (LPPS) under 2.6 104 Pa pressure. A lamellar structure consisting of vertical columnar grains and compact interlamellar contacts was found in the LPPS deposits. The oxygen content by mass porosity average grain size microhardness and ultimate tensile strength of the LPPS target were about 0.18 1.1 0.4 μm 361
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Oct 01 2016 · Molybdenum has body-centered cubic structure being a strong β-stabilizer for the formation of titanium alloys. In this paper the effect of substitutional molybdenum was analyzed on the structure microstructure and selected mechanical properties of Ti-20 Zr-Mo (wt ) alloys to be used in biomedical applications.
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molybdenum to compete with wrought grades. Recently due to cost constraints and availability PM steels have also included chromium and manganese as alloying elements. These material systems are categorized as alloy steels since significant levels of these elements are required to effect changes in the mechanical properties.
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molybdenum to compete with wrought grades. Recently due to cost constraints and availability PM steels have also included chromium and manganese as alloying elements. These material systems are categorized as alloy steels since significant levels of these elements are required to effect changes in the mechanical properties.
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cooling from the austenitizing temperature. The mechanical properties of a heat treated steel depend primarily on its hardenability. Sokolowski et al. 7 have reviewed various factors influencing the hardenability of PM steels. Certain alloying elements in particular chromium manganese molybdenum and nickel influence hardenability and have
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High-Temperature Ceramics Mechanical Properties Microstructure Molybdenum Disilicide Processing Zirconium Diboride Abstract "This research had two objectives characterization of processing-microstructure-mechanical property relationships of conventional ZrB 2 -MoSi 2 ceramics at room temperature (RT) and 1500⁰C in air and fabrication
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Influence of molybdenum on the microstructure and mechanical properties of TiC-TiB2 reinforced metal matrix composite coatings
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Microstructure Mechanical properties ABSTRACT The size of the secondary phases affects the lanthanum-doped titanium‑zirconium‑molybdenum (La-TZM) alloy properties. In this study the microstructure and mechanical properties of the La-TZM alloys were regulated by
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rhenium in molybdenum was investigated. Alloys of 41 44.5 47.5 and 51 rhenium were produced to examine the. mechanical properties at room temperature 1073K and 1473K. Microstructural analysis
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Keywords atmospheric plasma spraying molybdenum coatings microstructure mechanical properties. 1. INTRODUCTION The powder used in this research (Mo-NiCrBSi) was a blend of powders composed of 75 Mo and 25 self-fluxing alloy NiCrBSi. With the deposition of this powder a molybdenum base self-fluxing coating is obtained.
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The molybdenum alloy sheets composite strengthened by silicon and lanthanum oxide were prepared by powder metallurgy technology with Mo-La2O3(0.3wt ) and Si(0 0.1 0.3wt ) powders and thermo-mechanically processing. The influences of silicon content on the microstructure and mechanical properties of the final molybdenum alloy sheets were tested and analysized.
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We have synthesized titanium-based alloys containing molybdenum and tantalum elements by powder metallurgy. The microstructure the residual porosity and the mechanical properties of the sintered Ti-Mo and Ti-Ta-Mo alloys were investigated by using optical and electronic microscopy X-ray diffraction microhardness and compression tests.
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Sep 08 1993 · (1993). Effect of molybdenum on microstructure and mechanical properties of intercritically annealed and isothermally transformed low carbon steel. Materials Science and Technology Vol. 9 No. 8 pp. .
Get PriceMicrostructure and Magnetron Sputtering Properties of
Planar molybdenum targets were fabricated by low-pressure plasma spraying (LPPS) under 2.6 104 Pa pressure. A lamellar structure consisting of vertical columnar grains and compact interlamellar contacts was found in the LPPS deposits. The oxygen content by mass porosity average grain size microhardness and ultimate tensile strength of the LPPS target were about 0.18 1.1 0.4 μm 361
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Microstructure and Mechanical Properties of a Fiber Welded Socket-Joint Made of Powder Metallurgy Molybdenum Alloy Miao-Xia Xie 1 Yan-Xin Li 1 Xiang-Tao Shang 1
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The study focuses on alloy composition and attendant mechanical properties and microstructure. In addition processing routes to achieve bainitic and mixed (chromium molybdenum and vanadium) are added to the same steel (addition levels of 1.19 0.50 and 0.22 w/o respectively) the cooling rate necessary to achieve bainite during
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