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The gas flow rate and the power of the beam seem to have a major role on the mechanical properties and geometry of the weld.
The mechanical properties of the welds were determined by means of micro-tensile to be compared with those of the parent material.
The tensile mechanical properties in different directions in the plane RD-LT have been determined for the base metal (Table 3).
No anisotropy of mechanical properties for the two sheets metal is demonstrated confirming previous microstructural observations.
Mechanical properties of Hastelloy X.

This study investigates the effect of powder processing on powder flowability, compact ability, and the heat treatment of the resulting coatings on the mechanical properties of cold gas dynamic sprayed Ti-6Al-4V alloy.
Thus, the aim of this study is to investigate whether as-sprayed Ti-6Al-4V coatings using nitrogen as propellant gas can be improved in terms of microstructure and/or mechanical properties via powder processing before coating deposition and/or coating post-heat treatment.
Results and Discussion Feedstock Powder Size, Morphology, and Mechanical Properties.
Yue, Influence of He and N2 Gases on the Properties of Cold Gas Dynamic Sprayed Pure Titanium Coatings, J.
[6] ASM Handbook Volume 2: Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, 10 ed., ASM Handbook, Vol. 2, ASM International, 1990, p 1328

The result reveals that CaF2 particle was uniformly coated with a layer of Al(OH)3 and Al3+ concentration, pH value and reaction temperature are the main factors that affect coating result.
While with the lowering friction coefficient and lightening tool wear, mechanical properties and wear resistance of these tool materials decrease severely, which limits the improvement of the tool life.
And to obtain self-lubricating tools with good lubrication performance without impacting its mechanical properties has important practical significance.
T and C are the main influenced factors.
Preparation and Properties of Borosilicate Coated Alumina Particles From Alkoxides [J].

In this paper, mechanical property parameters of ceramic materials, including hardness, fracture toughness and elastic modulus, were selected as machinability attributes.
The machinability of materials mainly depends on its mechanical properties.
Table 1 Mechanical properties of ceramic materials Ceramics A12O3 SiC ZrO2 Si3N4 Hardness HV [GPa] 18 20 13 16 Fracture toughness KIC [MPa.m1/2 ] 3.5 4 7.6 6 Elastic modulus E [GPa] 350 410 200 280 Digraph Model for Machinability Evaluation Machinability Attribute Digraph.
For example work material (i.e., physical and chemical properties, etc.), cutting tool material, cutting conditions (i.e., speed, feed, depth of grinding), tool wear, grinding forces, surface roughness, etc.
There are lots of machinability affecting factors of ceramics, for a simplified calculation, three property parameters Hv, KIC and E are selected as machinability attributes.

Almost all polymer materials feature low stability of the properties over time.
In order to determine the physical mechanical properties of the tank welds and materials, the reference and weathered samples of type 1 and 2 were cut into individual sections from each of which forty (40) samples were cut for physical mechanical testing.
Physical mechanical properties of the samples (type 1) made from the tanks.
Physical mechanical properties of the samples (type 2) made from the tank sections.
Regionalizing and statistical parameters of climatic factors for technical purposes.

In particular, the relationship between the material production route, its chemical and phase composition and microstructure on one hand and its numerous properties on the other hand as well as various factors affecting the efficiency of applied advanced technologies was dealt with.
The emphasis was paid to nanostructures and to properties determined in nano- and/or micro-scale dimension.
As a result of them a wide range of advanced materials and technologies is described in terms of most relevant problems which affect their application.
D., Professor TUL Head, Division of Coatings Engineering Institute of Materials Engineering (IME) Faculty of Mechanical Engineering Technical University Lodz Stefanowskiego St. 1 90·924 LODZ POLAND Tel +48 426 312 265 Mob +48 501 29 29 22 Fax +48 426 366 790 E-mail bowe@p.lodz.pl Web site of IME: http://www.p.lodz.pl/IIM.htm 2.
Materials Engineering Dean of Mechanical Engineering Faculty of the Technical University Lodz Stefanowskiego St. 1 90·924 LODZ POLAND Tel +48 426 312 265 Mob +48 501 29 29 22 Fax +48 426 366 790 E-mail piokula@p.lodz.pl Web site of IME: http://www.p.lodz.pl/IIM.htm 3.

Introduction Hydraulic tunnel is a common construction project in water project, so tunnel lining also become an important part of Hydraulic tunnel, which mainly undertake the pressure of cliffs and the pressure of internal and external water, rock collapse can be prevented and roughness can be lowed, generally speaking, concrete tunnel lining with pre-stressed has high ability to undertake internal water pressure. while with the reason of properties on concrete itself ,so cracks will be formed on lining concrete ,which not only destroy the concrete structure, but also affect useful life of tunnel, it also difficult to deal with those cracks, which will lead to increase cost and construction time, so research crack propagation mechanism of lining concrete has a great important significance to prevent and control the crack expansion[1].
Concrete Lining Crack Propagation Along Straight Line Assume that concrete lining crack is a ideal linear elasticity material, according to the principle of classical damage mechanics, crack propagation depends on the degree of stress concentration near crack tip (stress-intensity factor) and material properties (crack-resistance of material)[2] , not depends on integral stress state of structure, stress-intensity factor is a parameter to represent the strength degree of stress field on elastic crack tip zone, when the stress-intensity factor greater than the crack-resistance, the crack will expansion, when the stress-intensity factor smaller than the crack-resistance, the crack is in a stable state.
Concrete lining cracks of Hydraulic tunnels belong to open type crack which is equivalent to the most simple fracture in the classical damage mechanical, as shown in figure 1： Uniform pressure on the crack surface in the infinite board , according to the classical damage mechanical ,the stress intensity factor of crack tip is as follows: (1) Where σ is the homogeneous stress, a is the length of crack.
The stress intensity factor of concrete lining crack tip on Hydraulic tunnels is calculated with 1 type crack type in damage mechanical.
Conclusions According to the properties of concrete lining crack on the hydraulic pressure tunnel, the crack propagation is analyzed based on the1 type fracture in fracture mechanic and based on the fractal theory, which has practical engineering significance and can provide guidance for engineering designs.

Influence of Oxygenated Additive on Blended Biodiesel-Diesel Fuel Properties OBED M.
POME + 60% vol. diesel) in the ratios of 2%, 4%, 6% and 8% and tested for their properties improvement.
These blends were tested for energy content and various fuel properties according to ASTM standards.
Previous studies have suggested that the weight percent of oxygen content in the fuel is the most important factor for PM reduction, and it is more important than other properties such as chemical structure or volatility [11].
Fig. 1, illustrates different analytical apparatus to measure the fuel properties.

The influence of superplastificators on polycarboxylates basis upon forming concrete mechanical and physical properties was estimated under heat curing.
However, simultaneously with concrete strength development heat curing may cause destruction, making worse the most important physical and mechanical concrete properties.
To solve such a problem it’s necessary to investigate the influence of the main technological factors on concrete properties during heat curing.
One of the factors is chemical admixtures presence in concrete, they influence mixtures and concrete properties. 1.1 Experience in usage of heat treatment for accelerated hardening of concrete with superplasticizers based on polycarboxylates During the last twenty five years revolution in the world construction business has been taking place.
Fominych, Study of Parameters Affecting the Efficiency of Heat Treatment of Self-Compacting Concrete with Mineral Additives, Inzhenernyi Vestnik Dona. 4 (2018).

Crack often takes place in the heat affected zone area.
However, many factors influence the preheating method due to the complexity of welding structure.
Mechanical properties were conducted by performing Vickers micro hardness testing, while SEM was used for fractography and micro-analysis of the crack surface.
Technical data of mechanical properties of each material are shown in Table 1 and the chemical composition of materials is shown in Table 2.
Many investigations have been done in determination of interacting factors on cold cracking.