Influence of introduction of titanium into the composition of a powder wire of type 25X5FMS

2021 ◽  
pp. 135-138
Author(s):  
A.A. Usol’tsev ◽  
N.A. Kozyrev ◽  
A.R. Mikhno ◽  
A.A. Tyurin ◽  
A.A. Umansky
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Powder Wire ◽  
Cored Wire ◽  
Metallic Inclusions ◽  
Deposited Metal

The effect of titanium introduction on the microstructure and physical and mechanical properties of metal deposited with flux-cored wire 25X5FMS has been studied. Surfacing of the investigated samples was carried out using a flux made from crushed slag produced by silicomanganese. The microstructure and non-metallic inclusions in the deposited layer have been studied. It is shown that with an increase in the concentration of titanium in the deposited metal, the hardness increases and the wear decreases.

scholarly journals Operation indices of the new cored wire of Fe−C−Si−Мn−Сr−Ni−Mo system

2019 ◽  
Vol 75 (7) ◽  
pp. 860-868
Author(s):  
N. A. Kozyrev ◽  
A. A. Usol’tsev ◽  
R. E. Kryukov ◽  
A. I. Gusev ◽  
I. V. Osetkovskii
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Chemical Composition ◽  
Correlation Analysis ◽  
Abrasive Wear ◽  
Physical And Mechanical Properties ◽  
Mining Machine ◽  
Cored Wire ◽  
Machine Screw ◽  
Cored Wires

To protect and repair details of equipment, subjected to abrasive and shock-and-abrasive wear, a build-up of hard alloy is widely used to increase the wear resistance of details, operating under abrasion conditions. Cored wires of Fe−C−Si−Мn−Сr−Ni−Mo system of type A and B by MIS classification are the main wires used for wear-resistant build-up in Russia. For effective application of building-up wires it is necessary to know the dependence of built-up layer hardness and its wear resistance on mass share of elements included into the composition of the cored wires systems. Influence of chemical composition of he built-up layer, obtained by the building-up with application of new powder systems of Fe−C−Si−Мn−Сr−Ni−Mo, protected by RF patents, on its physical and mechanical properties studied. Based on the results of the multifactor correlation analysis accomplished, dependences of the built-up layer hardness and its wear resistance on mass share of elements included into the composition of the cored wires of Fe−C−Si−Мn−Сr−Ni−Mo system determined. The dependences obtained were used for forecasting of the built-up layer hardness and its wear resistance at changes of the chemical composition of the built-up layer. The tests of JOY 4LS20 mining machine screw protective plates at Kemerovo region mines, built-up by the elaborated cored wire, showed an increase of the resistance by 19.3% comparing with the analog plates built-up by DRATEC wire.

scholarly journals Electron microscopy and x-ray spectral microanalysis of types and chemical propeties inclusions of the railway axis from a continuous billet

2018 ◽  
pp. 25-34
Author(s):  
M.I. Gasik ◽  
M.M. Gasik ◽  
Yu.V, Klimchik ◽  
Yu.V. Projdak ◽  
A,P, Gorobets ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Chemical Composition ◽  
Physical And Mechanical Properties ◽  
Original Data ◽  
Chemical Compositions ◽  
Sulphide Mineral ◽  
X Ray ◽  
Railway Axle ◽  
Metallic Inclusions

Purpose. Analysis of status and chemical composition of non-metallic inclusions of raw railway truck axle shafts steel using electron microscopy and X-ray spectral microanalysis for the improvement of the throughout technology of the axles production. Methodology. Study of phase composition and type of non-metallic inclusions in axles shaft steel was carried out with modern equipment and method of X-ray spectral microanalysis for quantitative and qualitative data. Findings. The analysis of the elements on chemical composition on EA1N steel and of non-metallic inclusions on physical and mechanical properties of railway axles made by rolling of continuous cast billt of 470 mm diameter. The types and composition of non-metallic inclusions were studied with electron microscopy and X-ray spectral microanalysis. Results can be applied for improvement of steel refining and alloying technology for railway wheel axles production. Originality. There were discovered the original data about the types and chemical compositions of nonmetallic heterophasic inclusions in railway axis metal using the electronic microscopy and X-ray microanalysis. The obtained research results about formations of multiphase inclusions were proved using the phase equilibrium charts consiolering oxide, oxide-sulphide mineral phases. Practical value. The results of electron microscopy and X-ray spectral microanalysis are important to understand and improve the throughput technology of refining and alloying of EA1N steel for railway axle shafts. Keywords: railway axle, railway truck, axle shaft, steel chemical composition, continuous casting billet, mechanical properties, non-metallic inclusions

scholarly journals INFLUENCE OF NON-METALLIC INCLUSIONS ON THE CORROSION RESISTANCE OF STAINLESS STEELS IN ARC SURFACING

2021 ◽  
Vol 2021 (4) ◽  
pp. 4775-4780
Author(s):  
IVETA PANDOVA ◽  
◽  
VALERY MAKARENKO ◽  
PAVLO MITROFANOV ◽  
KOSTIANTYN DYADYURA ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Stainless Steels ◽  
Complex Composition ◽  
Cored Wire ◽  
Composition And Structure ◽  
Martensitic Class ◽  
Metallic Inclusions ◽  
Deposited Metal ◽  
Pulsed Arc ◽  
Wire Feed

The influence of non-metallic inclusions on the corrosion resistance of stainless steel of the austenitic-martensitic class, deposited in one layer with flux-cored wire under the flux by the arc method in the mode of stationary and pulsed arc burning, has been studied. In the latter case, the wire feed impulse was 0.5 and 0.7 Hz. The selected surfacing conditions, with both methods of the process, contribute to the formation of non-metallic inclusions of complex composition and structure in the deposited metal, including those containing calcium and its compounds with other elements, which are classified as corrosive, accelerating the occurrence of corrosion phenomena.

PEMANFAATAN KAYU AKASIA MANGIUM (Acacia mangium Willd) UNTUK MEBEL

2012 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Djoko Purwanto
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Physical Properties ◽  
Treatment Process ◽  
Acacia Mangium ◽  
Physical And Mechanical Properties ◽  
Wood Fibers ◽  
Test Parameters ◽  
Mechanical And Physical Properties ◽  
Scale Scores

Timber Acacia mangium (Acacia mangium, Willd) for Furniture. The study aims to determine the mechanical and physical properties and the decorative value (color and fiber) wood of acacia mangium with using finishing materials. This type of finishing material used is ultran lasur natural dof ,ultran lasur classic teak, aqua politur clear dof, aqua politur akasia dan aqua politur cherry. After finishing the wood is stored for 3 months. Test parameters were observed, namely, physical and mechanical properties of wood, adhesion of finishing materials, color and appearance of the fiber, and timber dimensions expansion. The results showed that the mechanical physical properties of acacia wood qualified SNI. 01-0608-89 about the physical and mechanical properties of wood for furniture, air dry the moisture content from 13.78 to 14.89%, flexural strength from 509.25 to 680.50 kg/cm2, and compressive strength parallel to fiber 342.1 - 412.9 kg/cm2. Finishing the treatment process using five types of finishing materials can increase the decorative value (color and fiber) wood. Before finishing the process of acacia mangium wood has the appearance of colors and fibers and less attractive (scale scores 2-3), after finishing acacia wood fibers have the appearance of colors and interesting and very interesting (scale 4-5).Keywords: mangium wood, mechanical properties, decorative value, finishing, furniture.

Physical and Mechanical Properties of Tenun Pahang Fabrics using Alternative Yarns

2016 ◽  
Vol 13 (2) ◽  
pp. 67
Author(s):  
Engku Liyana Zafirah Engku Mohd Suhaimi ◽  
Jamil Salleh ◽  
Suzaini Abd Ghani ◽  
Mohamad Faizul Yahya ◽  
Mohd Rozi Ahmad
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
The Other ◽  
Silk Fabrics ◽  
Recovery Angle ◽  
Made In

An investigation on the properties of Tenun Pahang fabric performances using alternative yarns was conducted. The studies were made in order to evaluate whether the Tenun Pahang fabric could be produced economically and at the same time maintain the fabric quality. Traditional Tenun Pahang fabric uses silk for both warp and weft. For this project, two alternative yarns were used which were bamboo and modal, which were a little lower in cost compared to silk. These yarns were woven with two variations, one with the yarns as weft only while maintaining the silk warp and the other with both warp and weft using the alternative yarns. Four (4) physical testings and three (3) mechanical testings conducted on the fabric samples. The fabric samples were evaluated including weight, thickness, thread density, crease recovery angle, stiffness and drapability. The results show that modal/silk and bamboo silk fabrics are comparable in terms of stiffness and drapability, hence they have the potential to replace 100% silk Tenun Pahang.

Basic set of experiments for determination of mechanical properties of sand

2014 ◽  
Vol 62 (1) ◽  
pp. 129-137
Author(s):  
A. Sawicki ◽  
J. Mierczyński
Keyword(s):  
Mechanical Properties ◽  
Soil Mechanics ◽  
Physical And Mechanical Properties ◽  
Local Strain ◽  
Initial State ◽  
Laboratory Equipment ◽  
Additional Information ◽  
Basic Set ◽  
Initial Anisotropy

Abstract A basic set of experiments for the determination of mechanical properties of sands is described. This includes the determination of basic physical and mechanical properties, as conventionally applied in soil mechanics, as well as some additional experiments, which provide further information on mechanical properties of granular soils. These additional experiments allow for determination of steady state and instability lines, stress-strain relations for isotropic loading and pure shearing, and simple cyclic shearing tests. Unconventional oedometric experiments are also presented. Necessary laboratory equipment is described, which includes a triaxial apparatus equipped with local strain gauges, an oedometer capable of measuring lateral stresses and a simple cyclic shearing apparatus. The above experiments provide additional information on soil’s properties, which is useful in studying the following phenomena: pre-failure deformations of sand including cyclic loading compaction, pore-pressure generation and liquefaction, both static and caused by cyclic loadings, the effect of sand initial anisotropy and various instabilities. An important feature of the experiments described is that they make it possible to determine the initial state of sand, defined as either contractive or dilative. Experimental results for the “Gdynia” model sand are shown.

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