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The coarse grain in the weld HAZ is one of the factors causing deterioration of mechanical properties and leading to weld cracks in weld thermo-cycle[2,3].
Results Mechanical Properties of the Base Materials and HAZ.
In fact, IAF is one of the factors of affecting the mechanical properties of the weld HAZ.
Other factors, for instance, prior austenite grain size, ferrite grain size and the conformation and distribution of martensite-austenite (M-A) phase can affect the mechanical properties of the weld HAZ also.
The simulated heat affected zone showed desired mechanical properties for the offshore steel used in ocean engineering construction.

This model could be further improved to include the material and temperature factors.
The available experimental data that showed the variation of the mechanical properties with moisture content are found in references [1-13].
Nevertheless, the relationship between the properties and the moisture content is not well studied.
As for 90o laminates, it is significant that ageing temperature is affecting the degradation of the strength of the composites, as could be observed in Fig. 3.
Larsen, Development of engineering data on the mechanical and physical properties of advanced composites materials, Air Force Materials Laboratory, Air Force Systems Command, Wright-Patterson Air Force Base, Dayton, Ohio (1974)

Influence of Degree of Deformation on Anisotropy in Mechanical Properties in Wrought Magnesium Alloy ZK60 M.
However, wrought Mg alloys suffer from anisotropy in mechanical properties due to the basal texture formed after extrusion.
In addition to elemental alloying which affects the c/a ratio of the alloy and thus the activation of various slip systems and deformation twinning leading to the texture modifications, the degree of anisotropy in mechanical properties is affected by the degree of DRX.
Present study examines the effects of total degree of deformation on the mechanical properties and their anisotropy in as-extruded Mg alloy ZK60.
These factors lead to a lower compressive yield stress than the tensile yield stress in tension.

Investigation of Physical and Mechanical Properties of Construction Materials of Forced Carbonate Hardening N.V.
Physical and mechanical properties of building materials based on calcareous-lime compositions of semi-dry pressing, hardening according to the principle of forced carbonization, depending on the prescription and technological factors of their production have been studied.
Introduction The physical and mechanical properties of materials are their most important characteristics, which are used in the calculation of building structures made of these materials and products.
A significant place in the physical and mechanical characteristics of the material is given to deformative properties, which include their own deformations and deformations under the action of an external load.
Wu, Studies on some factors affecting CO2 curing of lightweight concrete products, Resour.

Solution heat treatment (ST) and artificial aging (T6) were given to specimens to improve the mechanical properties of the joints.
Furthermore, the solution and aging heat treatment can restore the mechanical properties of the joints successfully [14].
The size and distribution of the precipitates play an important role on the mechanical properties of the weld.
Effect of post weld heat treatments on microstructure and mechanical properties of friction stir welded joints of Al–Zn–Mg alloy AA7039[J].
The effect of post-weld heat treatment on the mechanical properties of 2024-T4 friction stir-welded joints[J].

Nondestructive testing is a field of study which covers: identifying the mechanical and physical properties of materials and structural components, detecting material defects and discontinuities, and measuring the geometric dimensions of objects without affecting their performance.
Introduction Nondestructive testing (NDT) is a field of study which covers: identifying the mechanical and physical properties of materials and structural components, detecting material defects and discontinuities, measuring the geometric dimensions of objects without disturbing the continuity of their structure or affecting their in-service properties.
One can use resistographic tests to preliminarily estimate the mechanical properties of wood on the basis of its internal defects.
The RM value depends on many factors, mainly on the variety of wood, the condition of the wood and the direction of drilling.
Summary There are many methods which can be used to nondestructively assess the physical and mechanical properties of historic wood in a structure.

Microstructures and mechanical properties and their changes with some factors are briefly introduced.
The factors are included in melting, heat treatment, surface treatment, and so on.
Excellent mechanical properties can be obtained when H13 steel is tempered at 550-650 oC.
The surface treatment can be used to improve the surface mechanical properties of H13 steel and enhance its service life.
Wang, et al, Effects of heat treatment on mechanical properties of H13 steel, Metal Science and Heat Treatment, 52(2010)393-395

Precipitation of Si and Its Influence on Mechanical Properties of Type 441 Stainless Steel Timo J.
Box 4300, 90014 University of Oulu, Finland atimo.juuti@oulu.fi, bpentti.karjalainen@oulu.fi, ceheikkin@oulu.fi Keywords: Ferritic stainless steel, Si precipitation, Nb, Laves-phase, mechanical properties Abstract.
Factors affecting the silicon precipitation are discussed.
Therefore, in this work, the evolution of precipitation and mechanical properties in a ferritic stainless steel alloyed with Si were investigated.
The difference between the values of macro- and micro-hardness may derive from factors such as grain boundaries.

Lukashuk1,c* 1Ural Federal University, Yekaterinburg, Russia 2Institute of Engineering Science, RAS (Ural Branch), Yekaterinburg, Russia avisim.vm@mail.ru, bemelyanov @imach.uran.ru, coldim96@mail.ru Keywords: hydrogen, concentration, mechanical properties, ultimate strength, scheme, criteria, degradation, diagram.
In terms of applied mechanics, it is especially interesting to study how hydrogen affects mechanical properties of structural materials put in contact with hydrogenous environments.
Alteration of Material Properties from Hydrogen Saturation Experimental research on how material properties change under the impact of various external factors is quite common in the mechanics of materials – like a well-known Ioffe diagram which indicates changes in ultimate and yield strengths of metals when temperature of specimen testing is lowered (Fig. 1).
It is obvious that registering how hydrogen affects properties of a material requires uniform distribution of hydrogen concentration over the cross-section of a specimen.
Atrens The influence of hydrogen on the mechanical and fracture properties of some martensitic advanced high strength steels studied using the linearly increasing stress test, Corrosion Science 99 (2015) 98–117

The Effect of Blending Ratio and Yarn Twist Multiplier on Polysulfone /Meta-aramid Blended Yarn Properties Xianghong Li 1, Jianhua Yin 2 1 Hebei University of Science and Technology, Shijiazhuang, Hebei, China, 050018 2 Hebei Province Research Center of Engineering and Technology of Textile and Garment, Shijiazhuang, Hebei , China, 050018 Keywords Blending ratio, Yarn twist multiplier, Two-factor analysis of variance, Yarn properties, Polysulfone /Meta-aramid blended yarn Abstract The effect of blending ratio and yarn twist multiplier on Polysulfone /Meta-aramid blended yarn properties is studied.
Properties of the fibers are shown in Table 1.
Yarn properties test YG1718-2 yarn hairiness tester is used to count yarn fuzz between 1mm to 9mm.
Results and discussion Different blended yarn properties are shown in Table 2.
Conclusions PSA/Meta-aramid blended yarn properties differ with different spinning conditions.