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Online since: February 2011
Authors: Yun Liang Li, Yi Qiu Tan, Yang Jian Ou
No matter high strength or low strength CA mortar, both of them are affected by multi-factors, such as ratio of asphalt and concrete, ratio of sand and concrete, sand gradation and added material.
The factors above can finally affect microstructure of CA mortar.
Cement: were ordinary Portland cements, The properties of the three cements were listed in Table 1.Asphalt emulsion: anion slow-breaking emulsion asphalt.
The properties of the three asphalt emulsion were listed in Table 2.
From Fig.6, different m(S)/m(C) determines different cementation state of microstructures of solidified body, accordingly affecting strength.
Online since: March 2008
Authors: Bin Shi Xu, Pei Jing Shi, Hong Mei Wang, Wei Zhang, He Long Yu
The rapidly expanding field of depth-sensing evaluation and techniques related provides a quantitative method for mapping the micro/nano mechanical properties.
It can be seen that the composite coatings have consistent mechanical properties with the exception of a few areas with low hardness and modulus.
To optimize the technique and reduce the defects is therefore the critical factor of improving the over-all properties of nanocomposite coatings.
A grid of indentations was made on the cross section of the laser remelted plasmer-sprayed coating to show the variety of mechanical properties along the coating thickness.
While it displays consistent mechanical properties under the same condition after load reaches 2 mN as shown in Fig.7b.
Online since: March 2024
Authors: Zhong Hua Ni, Chen Zhang, Xue Hu, Jin Bo Liu, Jie Cheng, Gu Tian Zhao
Meanwhile, controlled mechanical properties of these materials could promote their application flexibility.
Meanwhile, mechanical properties of these filaments were also characterized by tensile test experiments.
(2) (3) Mechanical Properties of PLLA Monofilaments.
Mechanical Properties of PLLA Monofilaments.
As a result, corresponding changes on mechanical properties of oriented filaments happened.
Online since: June 2012
Authors: Francesco Cardaropoli, Fabrizia Caiazzo, Vincenzo Sergi, Vittorio Alfieri
The relative difference of mechanical properties causes the phenomenon of stress shielding, which has a detrimental effect on the longevity of dental implants.
In addition, these materials are characterised by: low density (40% less than steel), good mechanical properties, acid resistance, no magnetic properties, good heat transfer, connected with thermal conductivity.
Indeed, this factor not only affects the osseointegration, but also mechanical properties in terms of stiffness.
Some factors adopted are constant: scan length of 5 mm, average size of the powder equal to 30 μm, and layer thickness of 30 μm.
Influence of Porosity on Mechanical Properties and in Vivo Response of Ti6Al4V Implants.
Online since: March 2008
Authors: Di Zhu, Jian Ming Yang
Experimental Study of Mechanical Properties of Electroformed Nanocrystalline Ni-Mn Alloys Jianming Yang1,a and Di Zhu 2,b 1 Department of Mechanical Engineering, Huaihai Institute of Technology, Lianyungang, China, 222005 2 College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China, 210016 a yjmhhit@yahoo.com.cn; b dzhu@nuaa.edu.cn Keywords: Electroforming, Ni-Mn alloys, Nanocrystalline, Mechanical properties Abstract.
It is also important to understand the variation of mechanical properties of electrodeposited nanocrystalline materials under the temperature effect.
In this paper, mechanical properties of the electroformed Ni-Mn alloys are studied.
It is probably affected by other factors.
The higher properties of the electroformed Ni-Mn alloys are attributed to the very fine grains
Online since: September 2005
Authors: Kazimierz Darowicki, M. Szociński
Introduction Corrosion is one of the factors contributing to limitation of steel structures lifetime.
However, their effectiveness is affected by a number of factors encountered at the exploitation site including UV radiation, temperature variations, humidity changes etc. [1-4].
Significant deterioration in the dielectric properties occurred after 146 000 cycles.
The impact of cyclic stress may be regarded as synergistic and the most when accompanied by other degrading factors. 4.
Schweitzer: Mechanical and Corrosion-Resistant Properties of Plastics and Elastomers (Marcel Dekker Inc, New York Basel 2000) [19] R.
Online since: August 2014
Authors: Hai Dong, Qing Quan Tong, Yi Kai Wang
Based on the similarity manufactured, the same type of quality characteristics, and similar factors that affect the quality is divided into a group, can be regarded as a similar process in a similar quality factors.
The matter-element theory was applied to adjust similarity of factors affecting the quality during the processing, to more accurately and efficiently divide the family of similarity process.
Using the similar properties or characteristics of similar factors, mapping the collection of process quality factors, which is to study the basis of the similarity of processes.
;Same level of operations staff;Same type of processing method;In the same environment (vibration, temperature, noise, etc.).Factors affecting the quality of processes and similar conditions shown in Table 1.
According to the degree of various factors that affect process quality, determine the weights of each factor.
Online since: November 2023
Authors: Thierry Baudin, Fazati Bourahima, Timothée Lauridant, Céline Guasch, Anne Laure Helbert
The cast iron substrate used during this work is employed for its thermal properties in glass mold Industry.
Conventional techniques used to protect the molds, like Plasma Transferred Arc (PTA), affect the molds microstructure, but also the thermal and mechanical properties.
The laser cladding of the Ni based alloy allows to protect the molds without affecting the cast iron thermal properties (low Heat Affected Zone).
Taguchi design of experiment with a table with 3 factors and 5 levels by factor with wavering method. 25 trials.
Zhang, Additive manufacturing of metallic components – Process, structure and properties, Prog.
Online since: July 2016
Authors: Shan Shan Hu, Dong Rui Zheng, Bi Tao Yang, Bo Dong Zeng, Zi Li Yang
In this study, the welding process and properties were investigated by pulsed Nd:YAG laser welding.
The distribution of welding surface microhardness test point (Unit: mm) After observation of weld surface morphology and analysis of mechanical properties for the single factor experiment welding, the range of welding parameters value for orthogonal test was determined and defocus distance (Z) was -1 mm.
Random repeated four factors three levels orthogonal test L9(34) was adopted.
Table 2 Orthogonal experimental factors and levels Test factors Levels Current (I) 150,160,170 [A] Pulse width (T) 15,24,25 [ms] Frequence (f) 4,5,6 [Hz] Wedling speed (V) 500,600,700 [mm/ min] Equipments.
Sharef, Gas tungsten arc and laser beam welding processes effects on duplex stainless steel 2205 properties, Mater.
Online since: June 2021
Authors: Xiao Wu Li, Peng Chen, Rong Chen
The excellent mechanical properties (i.e., elongation of 52%, a tensile strength of 785 MPa) have been obtained by adjusting the volume fraction and the stability of austenite.
Nowadays, the Fe-Mn-Al-C low-density steels are fairly attractive for the automotive due to their excellent mechanical properties [3-5].
Therefore, it is necessary to design a proper mechanical stability of austenite for achieving better mechanical properties.
The 900-5 steel exhibits a good combination of mechanical properties, with a product of tensile strength and elongation of 40.9 GPa·%
Peng, Evolution of the microstructure and mechanical properties of an austenite-ferrite Fe-Mn-Al-C steel, Materials Science and Engineering A, 643 (2015) 183-193
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