Search results

The addition of nitrogen allows stabilizing the austenitic metallic matrix, which, in turn, reduces the number of other stabilizers: manganese and nickel.
The stability of the studied samples against IGC was assessed in the absence of destruction of grain boundaries to a depth of more than 10 μm.
The bend, during which the test specimen was destroyed, was not counted in the total number of bends.
On the contrary, in the heating temperature range in the region of 650 °C, a pronounced maximum of bending resistance is observed; the indicators in this range are more than two times higher than the corresponding values of the number of cycles before fracture both in adjacent temperature ranges and in the case when there is no heat treatment (Fig. 2).
Effect of heat treatment on the results of bending tests of wire samples made of AISI 201 steel: 1 – wire AISI 201 without heat treatment; 2 – wire AISI 304 without heat treatment; 3 – wire AISI 201 with heat treatment Taking into account the significant increase in the number of bending cycles before fracture after heat treatment in this temperature range found in the experiment, it was decided to establish the reasons for this phenomenon in order to confirm the regular nature of the increase in the bending resistance of wire samples made of AISI 201 steel.

Clay considered as a natural and eco-friendly building material, moreover is now back in the new project because of his ecological and aesthetic benefits that attract the attention of increasing numbers of architects.
Aesthetic, versatile Clay is aesthetic and versatile material, with his different colours (white, red to coal-black), shapes, and surfaces, the number of possible designs and variations is almost unlimited. 4.
Fig. 10 Terracotta panel facade system, source: LOPO China. 5.4.3 Addition of stabilizers There are three types of stabilization in earthen construction [21]: - Mechanical stabilization: by compaction which modifies its density, its mechanical resistance, its compressibility, its permeability and its porosity - Physical stabilization: by intervening at the level of the grains and the texture - Chemical stabilization: addition of material or chemicals that modify its properties, in physicochemical reactions between the particles and the added material or product, or by creating a matrix that binds or coats the particles. 6.

In relatively closed conditions, granite is often fine-grained biotite granite and biotite granite with spots.
A small number of specimens can be seen zircon.
Table 1 Chemical analysis test data of major element of Xinshan Granite and CIPW standard minerals test results Sample Number HP25 HP26 HP27 HP28 HP29 Average SiO2 76.08 73.28 72.27 75.33 76.06 74.60 TiO2 0.100 0.024 0.054 0.025 0.022 0.045 Al2O3 11.91 14.06 12.07 12.69 12.71 12.69 Fe2O3 1.290 0.510 1.120 0.570 0.350 0.768 FeO 0.950 0.500 0.700 0.250 0.300 0.540 MnO 0.040 0.016 0.031 0.024 0.014 0.025 MgO 0.140 0.290 0.180 0.049 0.094 0.151 CaO 1.440 2.400 4.590 0.900 1.320 2.130 Na2O 3.070 2.330 4.340 4.600 4.470 3.762 K2O 5.880 5.040 4.750 5.260 4.880 5.162 P2O5 0.037 0.015 0.020 0.013 0.019 0.021 Ignition Loss 0.100 1.960 0.490 0.500 0.100 0.630 Total 100.09 99.93 99.92 99.96 100.04 99.99 ALK 8.950 7.370 9.090 9.860 9.350 8.924 A/CNK 0.849 1.030 0.585 0.852 0.845 0.832 A/NK 1.035 1.502 0.974 0.948 0.997 1.068 σ43 2.430 1.780 2.820 3.000 2.650 2.536 SI 1.240 3.350 1.630 0.460 0.930
1.522 A/MF 3.560 6.710 4.190 10.52 11.45 7.286 C/MF 0.780 2.080 2.900 1.360 2.160 1.856 DI 93.08 85.41 86.99 95.68 96.09 91.45 CIPW standard mineral molecular Q 32.91 35.14 23.35 28.40 29.59 29.88 An 1.340 11.99 0.200 4.510 Ab 25.74 20.02 35.60 36.10 37.73 31.04 Or 34.43 30.25 28.04 31.18 28.77 30.53 C 0.450 Di 2.850 3.290 1.640 1.120 2.225 Hy 1.410 Wo 0.910 7.840 1.050 2.030 2.958 Ac 0.960 1.180 Ns 0.370 Il 0.190 0.050 0.100 0.050 0.040 0.086 Mt 1.540 0.640 0.770 0.460 0.853 Ap 0.080 0.040 0.050 0.030 0.040 0.048 Total 99.99 100.00 100.00 100.00 99.99 100.00 Table 2 Chemical analysis test data of marble major element in Xinshan Area Sample Number HP15 HP16 HP17 HP18 HP19 Average SiO2 7.100 6.560 5.120 6.360 6.560 6.340 TiO2 0.310 0.280 0.230 0.290 0.310 0.284 Al2O3 1.940 1.920 1.430 1.820 1.690 1.760 Fe2O3 3.070 2.210 1.980 2.190 2.600 2.410 FeO 2.300 1.250
1.000 1.000 1.000 1.310 MnO 0.150 0.120 0.051 0.067 0.088 0.095 MgO 1.060 1.260 0.780 0.920 0.950 0.994 CaO 54.92 52.58 54.01 54.10 53.77 53.88 Na2O 0.290 0.310 0.160 0.200 0.240 0.240 K2O 0.390 0.280 0.500 0.480 0.500 0.430 P2O5 0.049 0.048 0.038 0.050 0.054 0.048 Ignition Loss 30.24 33.90 35.13 33.01 32.89 33.03 Total 99.52 99.47 99.43 99.49 99.65 99.51 Na2O+K2O 0.680 0.590 0.660 0.680 0.740 0.670 Table 3 Chemical analysis test data of skarn major element in Xinshan Area Sample Number HP20 HP21 HP22 HP23 HP24 Average SiO2 35.11 40.90 40.16 42.68 38.33 39.44 TiO2 0.260 0.120 0.250 0.150 0.220 0.200 Al2O3 2.270 1.480 3.040 1.740 2.170 2.140 Fe2O3 18.76 17.37 20.66 16.06 23.94 19.36 FeO 6.900 3.450 4.650 3.100 4.900 4.600 MnO 1.670 2.010 2.300 1.660 1.740 1.876 MgO 0.920 0.720 0.780 0.510 0.820 0.750 CaO 29.72 30.19 26.61 31.54 25.98 28.81 Na2O 0.170 0.110 0.810 0.390 0.380

In this process, ferritic stainless steel is first prepared; the grain refinement of this steel is then carried out by thermomechanical treatment.
O＋ O＋ O＋ O＋ Both-terminated PEG/ immersion Ti Ti OOOOOOO NH NH NH NH NH NH NH3 ＋ Ti OOOOOOO NH NH NH NH NH NH NH NH3＋ One-terminated PEG/ Electrodeposition Both-terminated PEG/Electrodeposition O＋ O＋ O＋ NH3 ＋ NH3＋ NH3 ＋ NH3＋ NH3 ＋ NH3 ＋ NH3 ＋ NH3＋ NH3＋ NH3 ＋ NH3 ＋ NH3 ＋ NH3 ＋ O＋ O＋ O＋ O＋ Both-terminated PEG/ immersion TiTi TiTi OOOOOOO NH NH NH NH NH NH NH3 ＋ TiTi OOOOOOO NH NH NH NH NH NH NH NH3＋ One-terminated PEG/ Electrodeposition Both-terminated PEG/Electrodeposition O＋ O＋ O＋ NH3 ＋ NH3＋ NH3 ＋ NH3＋ NH3 ＋ NH3 ＋ NH3 ＋ NH3＋ NH3＋ NH3 ＋ NH3 ＋ NH3 ＋ NH3 ＋ (a) 1123WQ (b) 1123WQ+AT673 400 600 800 in air in artificial saliva Maximum stress, σmax / MPa Number of cycles to failure, Nf / cycle 400 600 800 1000 10 5 106 10 7 108 10 4 in air in artificial saliva (a) 1123WQ (b) 1123WQ+AT673 400 600 800 in air in artificial saliva Maximum stress, σmax / MPa Number of cycles to failure, Nf / cycle 400 600 800
Number of cycles to failure, Nf　 Cyclic stress amplitude, σa /MPa 103 104 105 106 107 500 600 700 800 900 1000 R=0.1 f=10Hz σa / σB = 0.64 σa / σB = 0.78 σa / σB = 0.79 TFC1023 TFCA1098 Ti-6Al-4V TFCA1123 TFC1048 σa / σB = 0.5 ～ 0.7 Slash mark / : Internal crack initiation Arrow mark : Specimen not broken Number of cycles to failure, Nf　 Cyclic stress amplitude, σa /MPa Cyclic stress amplitude, σa /MPa 103 104 105 106 107 500 600 700 800 900 1000 R=0.1 f=10Hz σa / σB = 0.64 σa / σB = 0.78 σa / σB = 0.79 TFC1023 TFCA1098 Ti-6Al-4V TFCA1123 TFC1048 TFC1023 TFCA1098 Ti-6Al-4V TFCA1123 TFC1048 σa / σB = 0.5 ～ 0.7 Slash mark / : Internal crack initiation Arrow mark : Specimen not broken Slash mark / : Internal crack initiation Arrow mark : Specimen not broken and Ti-29Nb-18Zr-2Cr-0.5Si alloys have been newly designed for dental applications [14].

The transformation zone is crystalline, showing elongated grains with a size varying from 30 to 200nm in length located in the central region.
There is a significant difference in the number of 4, 5 and 6 coordinated silicon atoms.
It was found that there are definitely more silicon atoms around the O atoms if compared to the number of silicon atoms in the same region when indenting without O2.
It is clear that the transformation zone can be divided into a number of regions.
The above constitutive modelling is preliminary, because it does not include quite a number of influential factors such as loading rate, chemical reaction and anisotropy.

If we extend the research object to materials that do not require special temperature conditions for the work process and avoid processes that produce tension in the material, we will notice that • for FDM: o PLA density 1,25 g/cm3, E 3,5 GPa, Elongation at break 6%, Tensile strength 36 - 55 MPa, Compressive strength 17,9 MPa, [12, 13], water absorption 24 Hour 0,4% [16]; o ABS density 1,01 – 1,21 Mg/m3, E 1,1 – 2,9 GPa, Elongation at break 3 – 7,5%, Tensile strength 25 - 50 MPa, Compressive strength 7,6 MPa, [12, 14], water absorption 24 Hour 0,2%, [15]; o PETG density 1,3 g/cm3, E 2,2 GPa, Elongation at break 3 – 7,5%, Tensile strength 53 MPa, Compressive strength 55 MPa [17], water absorption 24 Hour 0,2%; • for SLS for PA-RP13S [18] o average grain size 60 µm, density 1,25 g/cm3, E GPa 3,2, Elongation at break 9%, Tensile strength 51 MPa, Compressive strength 17,9 MPa, • for plastic injection material [18] o density 1,25 g/cm3, E 3,2 GPa, Elongation at break 9%, Tensile strength
Another important component of the investment is the number of parts that can be made in the unit time.
From the presented ones, it is possible to estimate the energy costs for a part in the initial phase and those after the generated part (table 4.1.); · depreciation of the cost of purchasing a printer for 3D printing. its value depends on the admissible depreciation period in years and on the number of parts to be achieved in a month.
If the number of part in a month is known only at the end of the month, the estimated value of this number can be determined by summing up orders that will be launched within one month at the beginning of the month (table 4.1.); · the cost of salary it is estimate on the length of time of the printing process (table 4.1.).

This means that the simulation cost as a percentage of the die cost can be high for dies that are for smaller, low complexity parts and have fewer number of cavities.
This was used to obtain the required length of each runners for multiple cavity runners and thereby reduce the number of simulation iterations and cost of simulation.
The Percentage fill of the Shot Sleeve is an important number, calculated by knowing the amount of metal that will be required to make the casting and comparing it to the volume of the active shot sleeve.
Conclusion A number of causes of potential defects have been given here which were observed from simulations.
Monroe – 2012 NADCA Die Casting Congress & Exposition [5] High Pressure Die Casting of Aluminium and Magnesium Alloys - Grain Structure and Segregation Characteristics, Hans Ivar Laukli, A thesis submitted to the Norwegian University of Science and Technology (NTNU) in partial fulfillment of the requirements for the degree of Doktor Ingeniør - Trondheim, April 2004 [6] Estimating Cavity Fill Time, R.A.

Some words about present DEM and challenges for composites. 2.1 Origin and evolution Originally, the DEM permits to model granular medias taking into account the contact between the grains.
Their number and their size have also to allow a good geometrical representation of the fiber/matrix interface.
The last is governed by two criteria: an optimal rate of compaction (ratio between the volume of spherical DE and the enveloping volume) of 6.3 and a minimal number of coordination (number of contacts by DE) of 6 [18].
Moreover, it can be observed that elastic and shear moduli are rather influenced by the way of building discrete samples than by the number of DE.
Then, SEV made of fiber could be considered using an acceptable number of DE.

They have a number of features in common with TiO2 and can be considered as the analogs of the latter.
The photocatalytic activity are strongly enhanced by (1) the synergistic effect resulting from the incorporation of Fe-POM into TiO2/SiO2 during the deposition; (2) the growth of the nanocrystalline TiO2 grains are strongly restrained due to the co-existence of SiO2 nanopowders during the deposition; (3) the energy reduce for TiO2 photoexcitation owing to the existence of Fe-POM indicate that introduction of Fe-POM into TiO2 framework has an influence on coordination environment of TiO2 crystalline, resulting in the red shifts of the absorption band.(4) the increase of more effective absorptive sites due to the existence of SiO2, resulting in an improved photocatalytic efficiency.

matrix was the grain size of 500 order Al-30Si.
The liquid of beaker became turbid gradually, which a large number of suspended particles in.