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INTRODUCTION A good biocompatibility and excellent mechanical properties characterized CoCrMo alloys.
Published literature has highlighted the relevance of lubrication as well as metallurgical and contact mechanical factors on the degradation of CoCrMo implant alloys [1].
Two sintering temperatures were chosen to determine the properties for each sintering temperature.
RESULTS AND DISCUSSION PHYSICAL PROPERTIES AND TRIBOLOGICAL RESULTS OF COCRMO ALLOY.
WHEN THE TRIBOLOGY TEST WAS DONE ON THE CO BASED ALLOY SURFACE, ALL FACTORS WILL AFFECT THE VALUE OF THE WEAR RATE AND FRICTION COEFFICIENT.

Analysis of Factors Affecting the Direction of Plastic Strain Increment in Sand Yunpeng Guo1a, Chengzhi Qib, Chao Ma1c, Zhenhui Lu1 and Youjie Sun1d School of Civil and Transportation Engineering, Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China a1551916438@qq.com, bqichengzhi65@163.com Keywords: plastic strain increment direction, stress increment direction, stress state Abstract: Taking the standard sand of Fujian as the test material, this paper concentrates on studying the influence of different stress increment directions on the direction of plastic strain increment of sand materials under different stress states and the underlying mechanism.
Introduction Sand is a common granular medium material, which we have to treat with in engineering practice, and its mechanical properties have always been one of the key topics in geotechnical engineering research.
Thisindicates that under condition of working condition4 of initial stress, forthe same stress increment direction angle chang in this region, the plastic strain increment direction angle change range is larger than in the other two regions. 3 Analysis of Factors Affecting Plastic Flow Direction 3.1 Effect of stress increment We again use the results of test of working condition 4 as an example, and contruct the stress ratio-plastic shear strain curve, stress ratio-plastic volume change curve in the directions 0°, 90°, and 180°, respectively.
(in Chinese) [6] Lai Yong, Studying of sands constitutvie model that including the influencing factor of stress path at small strain[D], Nanjing: Hohai University, 2005.
(in Chinese) [17] Huang Maosong, Yao Yangping, Yin Zhenyu, Liu Enlong, Lei Huayang, An overview on elementary mechanical behaviors, constitutive modeling and failure criterion of soils[J], China Civil Engineering Journal. 49 (7) (2016) 9-35.

Effect of Mg on the microstructure and mechanical properties of the composites was investigated.
It is necessary for the optimum mechanical properties of the composites that the reinforcement fibers uniformly distribute in the aluminum alloy matrix by casting[1].
There are a lot of factors that affect fibers distribution in the metal matrix composites, such as the density, viscosity and surface tension of metal molten[2]; the density, size, and content of reinforced fibers[3]; the wettability of reinforced fibers with metal molten[4~7]; the stirring process and solidification process[8~10]etc.
CF wt% along the mold radius Influence of Mg addition on the mechanical properties of the composites.
(2) The suitable Mg addition is in favor of improving the mechanical properties of the carbon fiber reinforced Al alloy matrix composites.

The microstructural and mechanical properties of the bonding interface were evaluated via lap shear and micro hardness tests, X-ray diffraction, and Optical microscopy.
It was influenced by four different types of factors, including surface preparation, bonding environment (vacuum or shielding gas), and interlayer between the joining materials, all affect diffusion bonding [11–13].
Paidar, Effect of bonding pressure on microstructure and mechanical properties of aluminium/copper diffusion-bonded joint, Sadhana - Acad.
Wang, Influence of diffusion brazing parameters on microstructure and properties of Cu/Al joints, J.
Shirzadi, Diffusion bonding of copper alloy to nickel-based superalloy: effect of heat treatment on the microstructure and mechanical properties of the joints, Sci.

China; a wanailan@mail.dhu.edu.cn, b wdyu@dhu.edu.cn Key words: Wool; DFE; Hairiness; Pilling; Single Jersey Abstract: The properties of wool fibers treated with chlorine (Basolan® 88 and Kroy-resin) were compared with surface modification observed by scanning electron microscopy (SEM), frictional properties and mechanical properties.
The important subject involving the mechanism of pill formation and factors affecting it have been drawn attention to by many researchers since the mid-1950s.
Fabric pilling is affected by many interacting factors.
Many researchers have investigated the influence of fiber and yarn properties[3] and have identified numerous factors which cause the fuzzing and pilling of wool fabrics.
Table 2 shows the differences of mechanical properties between the untreated and treated wool samples.

These polymers on their own possess different mechanical properties and display different deformation behaviours.
Bioactive bioceramics have different mechanical properties.
Other factors.
Several other factors can affect the mechanical performance of bone analogue biomedical composites.
There are a few major factors that affect the deformation and fracture processes.

Investigation of the Mechanical Properties and Microstructure of Graphene-Aluminium Alloy Composite Fabricated by Stir Casting Process A.
However, average mechanical properties and low wear resistance are the prominent drawbacks of aluminium alloys.
GNPs with excellent mechanical properties were introduced in aluminium alloy with various amounts of GNPs in wt%.
Poor dispersion of GNPs is one of the factors that could be affecting the mechanical properties of the composite.
Two main contributing factors in hardness enhancement are uniform distribution and densification of composite[11].

The buckling of the laminated rubber-metal spring could be affected by the size of central hole, thickness and number of metal plates, the material properties of rubber, manufacturing errors and many more.
The properties of materials used in the numerical analysis are shown in Table 2.
Material properties used in the Finite Element model.
This is because of the steel material properties itself that is tough and not easy to deform.
Joseph, Mechanical Properties of Natural Rubber Latex Coagulated by a Novel Coagulant-Yeast, IJAEST, 8.2, (2011) 177–178

This paper focuses on the mechanical properties of galvanized iron wire under various conditions of earthquake-type strain rate.
Dynamic mechanical properties of reinforcing steel are widely illustrated and discussed in literature [1-2].
The dynamic mechanical properties of galvanized iron wire were investigated.
Fig. 4 Comparison of yield strength increasing factor of the proposed model and the other models Fig. 5 Comparison of tensile strength increasing factor of the proposed model and the other models Conclusions Based on the previous test results obtained, the following observations can be drawn on the earthquake-type strain rate on the dynamic mechanical properties of galvanized iron wire
The dynamic mechanical properties of galvanized iron wire are similar to reinforcing steel.

Its tensile strength (TS) for 3D printed parts depends on the filling technique and density, among other factors [3], for this reason it is used in parts with high mechanical demand and phantoms for studies in the health area [5].
Percentage of retention of mechanical properties after sterilization processes for polycarbonate.
The values ​​of the mechanical properties before and after the sterilization processes are shown in Table 5.
Percentage of retention of mechanical properties after sterilization processes for z-nylon.
Haward: Physical factors affecting the impact strength of polycarbonate, Journal of Materials Science, Vol. 17 (1982), p. 199–203