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Improvement in Mechanical and Metallurgical Properties of Friction Stir Welded 6061-T6 Aluminum Alloys through Cryogenic Treatment K.
Subsequently, mechanical properties drastically improved and the joints achieved a maximum joint efficiency of 74% of the base material.
Even though aluminum alloys have better corrosion resistance, welding atmosphere, conditions, and parameters are the factors which control the corrosion resistance.
Schaper, Characterization of microstructure, mechanical properties and corrosion behaviour of an AA2219 friction stir weldment, J.
Liu, Effect of welding parameters on microstructure and mechanical properties of friction stir welded joints of 2060 aluminum lithium alloy, Int.

The principles of the geometrical base parameter are dependent on several factors, such as the bending angle, bending radius, material thickness, bend allowance, bending types and mechanical properties of materials.
In this study, the bending process would be investigated to study the effect of the material mechanical properties and bending geometries, such as a ratio of bending radius to sheet thickness on the bending quality.
The effect of the ratio of the bending radius to sheet thickness ratio and mechanical property were also discussed.
There are many parameters that could affect the K-factor.
The sheet material was a high strength steel, and its properties were taken from the uniaxial tensile test for determining the flow stress.

Microstructure and Mechanical Properties of Friction Stir Welds in Aluminium Alloys 2024-T3, 5083-O and 6063-T6 R.
The aim of this research is to study the effect of the welding process on the microstructure and mechanical properties of friction stir welded joints in aluminium alloys 2024T3, 5083-O and 6063-T6.
Some authors account the improvement of mechanical properties in the weld region [3].
The chemical composition and the state of treatment of aluminium alloys are determinant factors of the degradation of mechanical properties that occurs during welding operations. 0 20 40 60 80 100 120 140 160 180-30 -20 -10 0 10 20 30 Distance [mm] Hardness HV1 2024FSW 5083PM 5083FSW 6063PM 6063FSW 2024PM Fig. 3 - Hardness evolution in friction stir welds (FSW) on aluminium alloys 2024-T3, 5083-O and 6063-T6; PM - parent material; TMAZ - thermal and mechanically affected zone; AS - advancing side; RS - retreating side.
Therefore the change in mechanical properties of the welded joint is function not only of the welding technology but depends also of the chemical composition and of the thermal and mechanical treatments of the aluminium alloys.

Despite that 42CrMo4 steel material properties of are well documented [9,10], there is still an interest in studying the mechanical properties of such material [7,11].
Table 4 – 42CrMo4 mechanical properties Hardness Brinell Yield Strength [MPa] Elastic Modulus [GPa] Tensile Strength [MPa] Poisson’s Ratio 197 415 200 655 0.29 In Table 4 it is shown that in terms of mechanical properties the 42CrMo4 does not meet the same mechanical properties performance as Inconel 713C but it is still a medium performance steel.
An investigation of the factors affecting the design of drum dryers.
Electronic structure and mechanical properties of plasma nitrided ferrous alloys.
Martensitic–austenitic 9–12% Cr steels – alloy design, microstructural stability and mechanical properties.

The pore structures on mechanical properties of porous Ti were investigated by 3D finite element models.
Considering the intricate service-environment in-vitro, many factors should be taken into account, e.g. pore shape, pore size, porosity and interconnectivity to appraise the mechanical properties as load-bearing replacements.
Pore Shape Dependence of the Mechanical Properties.
Pore Distribution Dependence of the Mechanical Properties.
Eq. 2 was adopted to evaluate and compare the changes of mechanical properties between S500 and Scp.

This work uses nanoindentation and nanoscratch to measure the mechanical properties of evaporation copper thin films.
The mechanical properties are then determined by indentation test and lateral force test produced by nanoindenter and nanoscratch.
The results represent the substrate has a significant effect on the mechanical properties of the thin films.
In engineering applications, one of the basic problems is to determine the mechanical properties of materials.
The aim of this work is to measure the mechanical properties of thin films by using nanoindentation and nanoscratch.

Therefore, the influence of the RSW process parameters established by an automatic sequence on the nugget geometry, microstructure, and mechanical properties was investigated.
Nevertheless, there were differences in terms of phase dispersion, defects and mechanical properties that have been linked to the RSW process parameters.
The influence of the welding parameters on the microstructure was evaluated by metallography and the mechanical properties were evaluated by Vickers hardness testing.
Controlling Factors.
Effect of Acicular Ferrite on Mechanical Properties of Ultra-Fine Grain Ferrite Steel.

a*eduardo.feistauer@hzg.de, bluciano.bergmann@hzg.de, cjorge.dos.santos@hzg.de Keywords: Tailor welded blanks, Friction stir welding, Local and global mechanical properties Abstract.
Moreover, the rotational speed directly affected the ROL distribution and consequently the mechanical properties of the welds.
Figure 5: Tensile stress-strain curve for the TWB joints (a), mechanical properties of the joints (B) and strain maps obtained by DIC.
Pieters, Mechanical properties and microstructure of friction stir welded tailor-made blanks, Mater.
Benedictus, Global and Local Mechanical Properties and Microstructure of Friction Stir Welds with Dissimilar Materials and/or Thicknesses, Metall.

The tension and bending properties were investigated experimentally, and then dual variance analysis was used to show the significant difference of the mechanical property in the transverse and longitudinal orientation as well the appreciable impact of different fiber ratios to the mechanical property.
So according to the anisotropy, grasping the difference of mechanical properties in the transverse and longitudinal has the vital significance to the design of composite board.
This is because the property of the composite board is also affected by other factors such as the interfacial bond strength between CBF and PP.
This is probably due to a slight deviation, in the control of hot pressing process, which makes the adhesion property of the board in the fiber ratio of 30/70 worse and then affects its mechanical property.
The board in the fiber ratio of 30/70 is mainly scattered wire fracture, so the mechanical properties are weaker than the other two boards.

Multiscale Mapping of Mechanical Properties by Instrumented Indentation Test Kug-Hwan Kim1, a , Young-Cheon Kim1, b , Seung-Kyun Kang1, c Kwang-Ho Kim 2, d , and Dongil Kwon1, e 1 Dept. of Materials Science and Engineering, Seoul National University, Seoul, Korea 2 Frontics Inc., Seoul, Korea a samadhi0@snu.ac.kr, b im01000@snu.ac.kr, ckskg7227@snu.ac.kr d khkim@frontics.com, edongilk@snu.ac.kr Keywords: Instrumented indentation test, mechanical mapping, tensile properties, residual stress Abstract.
Thus, mechanical testing methods that can measure multiscale properties are essential for the safe and economical operation of macro/micro systems.
In addition, the tensile properties and residual stress distribution of weld joints with very rapid mechanical gradients were tested using a macroindentation system made by Frontics, Inc.
The results show that IIT is effective as an in-service inspection method in order to monitor the strength variation and mapping of mechanical properties.
This implies that IIT can be used not only for nano/microscopic mapping but also macroscopic mapping of mechanical properties.