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Online since: March 2020
Authors: S.D. Polischuk, Yu.A. Stekolnikov, S.N. Borychev, N Yu Stekolnikova, V K Astanin, D.G. Churilov, N.V. Byshov
Particular attention is paid to the use of chrome plating methods making possible to increase the durability and reliability of the parts recovered in electrolytes of different composition, allowing to obtain coatings with high physical-mechanical properties that determine their suitability for the operation in the process of use for their intended purpose.
The use of periodic currents in repair production (by reversing direct, rectified currents, conversion of industrial frequency currents) allows adjustment of the amplitude duration and its magnitude in the cathode and anode component of the current, which makes possible to control the structure and the texture of the formed sediment and thereby its physical and mechanical properties [1-5].  
In this regard, the purpose of the study is a low concentrated electrolyte of chromium plating with organic additives (150 g / l CrO3 + 1.5 g / l H2SO4 + 1.5 g / l crystal violet (CF)) and the physical-mechanical properties of chromium coatings.
They are highly economical, technological, environmentally friendly and make possible to obtain coatings with the required physical and mechanical properties.
During pulsed electrolysis, it is possible to control the composition of the components of chromium and iron alloys and to obtain coatings with desired properties from a single electrolyte.
Online since: November 2017
Authors: Dagmar Jandová
Fracturing of the crept specimens was located in the heat affected zone (HAZ) of the F steel.
Some of the most limiting factors are the creep properties of the materials used in steam turbine components.
Microstructural study was performed with the aim of elucidating the causes of creep failure concentrated in the heat affected zone (HAZ) of the F steel.
Hardness was measured to assess the influence of the creep tests on the strength properties in the HAZ of the F steel.
Hald, Microstructure and long-term creep properties of 9-12%Cr steels, International Journal of Pressure Vessels and Piping 85 (2008) 30-35
Online since: July 2011
Authors: Jim Chen, Peter Herd
Proper TCPT should be selected based on several factors: exposed temperatures and heating rates, number of temperature cycles, mechanical movements, chemical and / or alloy contents, applications and ease of use.
Other physical properties.
Within this group of TCPTs, there are specification and production variations in Cast Iron chemistry and therefore resultant physical properties.
This tube has excellent non-wetting properties, allowing easy slag removal.
The properties of the Pinnacle make it a superior alternative to other tubes in temperature measurement.
Online since: December 2011
Authors: Ding Feng, Zuo Jie Liao, Cheng Yang, Qiang Luo, Peng Wang
The Experimental Study on the Performance of Anchor Material of Mooring System for Deepwater Drilling Ding Feng, Zuojie Liao, Peng Wang, Cheng Yang, Qiang Luo (School of Mechanical Engineering, Yangtze University, Jingzhou, Hubei 434023, China) fengd0861@yahoo.com, fengd@yangtzeu.edu.cn Key words: deepwater drilling; mooring system; anchor; performance; experimental study Abstract.
Generally speaking, the main factors like abrasion damage, stress corrosion and fatigue lifetime are required to take into consideration.
The nickel content of the material is 0.020%, which shows the material has good intensity, ductility and acid-alkali corrosion resistance; the molybdenum content of the material is 0.004%, which promotes the grain refinement of material structure, thus the mechanical properties of anchor material are also improved.
In view of this experiment, we can make the following suggestions: (1) Since the percentage composition of chemical elements in the anchor material affects the material intensity, ductility, abrasion resistance, corrosion resistance and other properties, we can change the processing technology of anchor material, and make the chemical composition more reasonable so that the material can adapt to the complicated deepwater environment better
Online since: September 2016
Authors: Stefanos Gkatzogiannis, Thomas Ummenhofer, Peter Knoedel
In the case of EN AW-6060 influence of recrystallization on the yield strength of the HAZ (heat affected zone) was taken into consideration.
Initially the transient thermal part is solved, using appropriate temperature dependent properties.
The solution of this field is governed by the same equations for both materials, changing only the material dependent properties in each case.
Mechanical parameters’ values were found in [13] for EN AW-6060 and EN AW-5754 and in [14] for filler EN AW-5356.
The edge of the component was considered to be clamped down (see Fig. 3) during mechanical analysis.
Online since: March 2013
Authors: Guo Qiang Wang, Shao Qing Zhang, Jiang Yuan Hou
Nowadays there has been extensive suture material and suture for surgeons to choose, and for a special operation suture selection, according to the physical and biochemical properties of sutures and wound healing properties were determined.
Absorbable suture material properties Suture line of previous classification methods usually can be divided into the material of natural materials, synthetic materials and metal materials or according to the structure and machining process is divided into a monofilament, braided and twisting type.
Many scholars think these problems have do with suture techniques, poor quality, too much line knot, needle, tendon destruction of blood supply and other factors.
These increase the healing condition, reduce tendon adhesion factor.
And it can be quickly absorbed properties and good biocompatibility, can avoid the adverse inflammatory rejection and the second damage non absorbable suture to the affected body when takes the line.
Online since: August 2021
Authors: Zakhar G. Sakoshev, Aleksey N. Blaznov, Vyacheslav V. Firsov
The exposure of the two factors at a time (tension and environment impact) is more intense than their successive exposure―this event is known as the Rehbinder effect [2].
It was found that the concrete environment adversely affects the durability and strength of polymer composite materials [12-14].
But the nature of failure in the midsection suggests that the specimens were actually affected by chemical ageing.
Yan, Mechanical properties of discrete BFRP needles reinforced seawater sea-sand concrete-filled GFRP tubular stub columns, Construction and Building Materials. 244 (2020) 118330
Zhurkovsky, Geometric and mechanical characterization of ribbed FRP rebars, Polym.
Online since: February 2013
Authors: Zhou Li, Wen Yong Xu, Zhing Liang Ning, Jian Fei Sun, Guo Qing Zhang, Dong Ye Yang
Introduction GH738 alloy, which has the similar chemical composition as Waspaloy in America, is widely used in aircraft engine turbine blades and turbine discs due to its excellently comprehensive properties [1].
Spray formed GH738 alloy has good tensile properties and stress rupture properties to suffice the demands of aerospace produces [2-4].
The formula of intensity factor K can be expressed using the following equation [13,14]
The da/dN was significantly affected by K.
Tian, The study of microstructures and properties of spray formed superalloy GH738 ring, Journal of Iron and Steel Research.
Online since: October 2023
Authors: Pedro Francisco Mayuet, Lucía Rodríguez-Parada, Sergio De la Rosa, Miguel Ángel Pardo-Vicente, José Ramón Méndez-Salgueiro
Accordingly, it is observed that the generation of nature-based textures can be an added value to improve all emotional and sustainability factors affecting street furniture.
Research is even focusing on adding specific properties, such as translucency to implement sensory properties [19], that already exist with conventional manufacturing processes.
Finally, a study was carried out in order to parameterise the relief measurement with respect to the relief measurement parameter of the Blender program, relating it to the microgeometric properties of the average surface roughness (Sa, Sz).
The prototypes generated in both materials, figure 8 b) and c), obtain similar properties, although the texture is more toned down in the light recycled PLA material.
Additive manufacturing of PLA structures using fused deposition modelling: Effect of process parameters on mechanical properties and their optimal selection.
Online since: August 2004
Authors: Am Kee Kim, Kum Bae Lee, Seung Hoon Nahm, Yong Du Jun
Meanwhile the material suffers from aging, and its properties may change gradually.
Thus the change of mechanical properties including erosion wear resistance due to aging is inevitable.
It has been reported that material properties such as the fracture toughness and tensile strength deteriorate with aging time [5].
Since the impact angle is one of the primary and difficult factors for the prediction of the erosion life, the effect of impingement angle as well as speed of impinged particle and temperature on the erosion rate of aged HK40 steel was also studied.
(2) The erosion mechanism at R.T. seems to be affected by the combination of micro-cutting and the damage accumulated by particle impact fatigue while at 400℃ it is dominated by the micro-cutting
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