Search results

Some literature [4] reported that the fraction of carbon-enrich retained austenite is determined by the content of Si and Al.
Because the alloying elements such as Si and Al can avoid the carbide precipitation during the partitioning step.
Mechanical properties of 50CrVA spring steel Item UTS (MPa) YS (MPa) Hardness (HRC) Ar (%) El (%) AKU (J) Q&T 1610 1460 47 18 6 24 Q-I-Q-T 1760 1510 49.7 49 15 32.5 Concerning the good mechanical properties of Q-I-Q-T samples, the microstructure must be discussed.
(3) Excellent mechanical properties of low Si steels without Al can be obtained by Q-I-Q-T process, due to the refining multiphase substructure, especially small bainite laths led to the good toughness and plasticity formed during the isothermal step in Q-I-Q-T steels.

., Grindlay, A.L. 2015.
[6] Al-Marwaee, M., Carter, D., 2006a.
[7] Al-Marwaee, M., Carter, D., 2006b.
El-Henawy, Mohamed W.

Ishi et al. [5] considered the problem with parallel uniform machines in which the speed of a machine is a continuous nonnegative variable and the compression cost is a function of the speed of the machine.
Then, using the well-known three-field notation introduced by Graham et al. [19], the corresponding scheduling problem is denoted by , (2) where the notation “lin” in the second field stands for a linear resource consumption function given in Eq. (1) and ().
In fact, Monma et al. [22] pointed out that is very corresponding to many actual government and industrial operations and the case arises from very large scale integration (VLSI) circuit design.
Graham, E.L.

X-ray photoelectron spectroscopy were carried out on a ESCALAB250 spectrometer using Al Kα radiation (1486.6eV).
Qi et al.[13] found that manganese-cerium mixed oxide catalysts could be promoted for catalytic oxidation of NO to NO2 in the presence of cerium oxide.
According to the changes of the manganese oxidation state, we suggest that there is a synergistic mechanism between the manganese oxides and the cerium oxide which is consistent to the result of Ding et al [21]. 2MnO2 → Mn2O3 + O (1) Mn2O3 + 2CeO2 → 2MnO2 + Ce2O3 (2) Ce2O3 + 2O2 → 2CeO2 (3) Complex Ce 3d XPS spectra are presented in the Fig. 6 (b), it can be found that the binding energy of Mn8Ce5/PG-SCR catalyst was higher than that of fresh Mn8Ce5/PG catalyst.
El Fallah and F.

Vol. 12 (2001), p. 7 [3] Bao C, Fan H, Deng C: Key Engineering Materials, Vol. 254-256(2004), P. 801 [4] Lu HH, EL-Amin SF, Scott KD, et al.
Vol. 240-242(2003), P. 81 [6] Kruyt MC, De Bruijn J, Veenhof M, et al.
Vol. 9(2003), P.105 [7] Deng C, Tan Y, Bao C, et al.

Antonacci A. et al [5] identified the factors under which the prognosis of the TC disease gets worse: anaplastic, squamous cell, medullary TC, insular forms of TC, spread of tumor beyond the capsule, invasion into adjacent tissues, and the presence of residual tumor after surgery.
Bakki et al., Thyroid cancer.
Frolova et al., Modern approaches to treatment and rehabilitation of patients with tumors of the paranasal sinuses using NiTi and computer technology, Siberian Journal of Oncology 2 (2007) 63-68 (in Russian) [10] L.I.
Musabaeva, E.L.

Shah et al. (2010) theoretically discussed the impact of fracture orientation near the wellbore and found that the well performance is dramatically affected by the fracture forms [7].
S., et al.
[5] El Rabaa, W.
[7] Shah, Subhash, et al.

Lee, Preparation and thermal stability of Zr-Ti-Al-Ni-Cu amorphous powders by mechanical alloying, Metal Mater.
El-Eskandarany, K.
Suzuki, Calorimetric and morphological studies of mechanically alloyed Al-50 at. % transition metal prepared by the rod-milling technique, J.
Lu, Pressure-enhanced thermal stability against eutectic crystallization in Al-based metallic glasses, Scripta Mater., 45, (2001) 1091-1097

Hanjitsuvan et al. [12, 13] states that the electrical conductivity of fly ash geopolymer matrix is affected by the NaOH concentration in activator solution, liquid activator/ash ratio (L/A) and frequency spectrum.
Mackenzie et al. [15] prepared clay-based geopolymers with 0.2-6% of single wall carbon nanotubes (SWCNTs) and the same concentration of graphite for comparison.
According to Saafi et al. [16], the optimal concentration of CNTs is 0.5% which ensures the improvement of both electrical and mechanical performance, higher concentration leads to cluster formation and lower efficiency of their dispersion.
El Gawaad: Characterization of alkali activated geopolymer mortar doped with MWCNT.

Lebensohn [5] and Lebensohn et al. [6].
Work on misorientation development in copper, Lebensohn et al. [7] demonstrated the ability of the code to reproduce subgrain development.
Analysis of hot spots in stress, Rollett et al. [8], showed that the hot spots tend to occur near grain boundaries
El-Dasher, B.L.