Search results

Raw material is that MgO (The MgO purity is in 98% above) composes 3% thickness boric acid.
Fig.1 Structure in the vacuum caldron Fig.2 Equipment for experiment Experimental methods The experimental material is SPHC steel of Tangshan Iron and Steel carbon, ferromanganese,and ferrochromium, According to the experimental requirements , it is designed to use 300g smelting molten steel. it is required to use electronic balance to weigh accurately according to the experiment method.
The main processes of high nitrogen steels refining experiment is feeding - melt - refining - solidification – discharge. the three materials mixed by a certain percentage in the need to ensure that the mass fraction of Cr and Mn is 18%,and put the materials into the crucible which have been prepared, then put the crucible into the high-temperature autoclave to heat and vacuum, when the charge of the volatiles evaporate completely and pressure is no longer reduced, close the vacuum, then Pressurized with nitrogen, put the furnace cover on and seal well, which mainly is to prevent leakage when the pressure is high, when the pressure reaches the demanded and the temperature reached the demanded, the required nitrogen is bottom-blowing.
Acknowledgements This work was financially supported by the Hebei Natural Science Foundation (10215116D) and National Natural Science Foundation of China（50974051）.
The refining thermodynamic analysis and experimental research of high nitrogen steels by using high pressure and bottom-blown [J], The Chinese Journal of Process Engineering, 2008, 8(1): 243-246.

Introduction Evapotranspiration as one of the crucial elements of the hydrologic cycle and the important form of material energy cycle, is of great significance in the research of water resources assessment, prediction of water demand of crop, hydrological model computing, and drought monitoring.
And the financial support was provided by the Science and Technology Plan Project of Shenzhen (JCYJ20160226092135176), the General Program of the National Natural Science Foundation of China (No.41877470) and the Natural Science Foundation of Guangdong Province of China (No.2017A030313229).
Shiri, Modeling reference evapotranspiration in island environments: Assessing the practical implications, Journal of Hydrology, 570 (2019) 265-280
De Baets, et al., A coupled stochastic rainfall-evapotranspiration model for hydrological impact analysis, Hydrology and Earth System Sciences, 22 (2018) 1263-1283
Yang, Climatic factors influence changing pan evaporation across China from 1961 to 2001, Journal of Hydrology, 414-415 (2018) 184-193

Department of Materials and Manufacturing, DIMEI, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Coyoacán, 04510 Mexico, D.F.
Work performed while on sabbatical leave at: Department of Metallurgy and Materials Engineering (MTM), Katholieke Universiteit Leuven, Kasteelpark Arenberg 44 Bus 2450, B-3000 Leuven, Belgium a raf_schouwenaars@yahoo.com Keywords: Al-Sn alloys, DMMC, recrystallisation, grain growth, liquid phase.
Introduction Two-phase Al-Sn alloys are used in journal bearings as a substitute for Cu-Pb bronzes.
Nonetheless, most providers of journal bearings produce alloys in which an equiaxed Sn-phase is finely distributed in a fine-grained Al-matrix [1].
Elsevier Science, Netherlands, 1995

Experimental set-up Test materials.
Test materials included saline soil, wheat straw and lime, and some related characters themselves are as follows in Table 1.
Table 1 Physical properties of materials No.
Acknowledgements This work is supported by the National Natural Science Foundation of China (Grant No. 40772166) and Tianjin Natural Science Foundation (Grant No. 07JCYBJC12900).
Sridhar: Construction and Building Materials, Vol.16 (2002), p. 123-131

Materials Characterization XRD carried out by PANalytical X-pert diffractometer (Philips, Netherlands) using CuKα radiation at 40 kV and 30 mA.
Gogia, Ti based biomaterials, the ultimate choice for orthopaedic implants–a review, Progress in materials science 54 (2009) 397-425
Hwang, The effect of fluoride-containing oral rinses on the corrosion resistance of titanium alloy (Ti-6Al-4V), The Korean Journal of Orthodontics 47 (2017) 306-312
Costa, Electrochemical evaluation of Ti‐13Nb‐13Zr, Ti‐6Al‐4V and Ti‐6Al‐7Nb alloys for biomedical application by long‐term immersion tests, Materials and Corrosion 58 (2007) 329-333
OKABE, Microstructure and corrosion behavior of binary titanium alloys with beta-stabilizing elements, Dental materials journal 20 (2001) 34-52

Mueller2,b, Ramona Roessle1,c and Siegfried Horn1,2,d 1Experimental Physics II, Institute of Physics, University of Augsburg, Germany 2Institute of Materials Resource Management, University of Augsburg, Germany aanna.schneller@physik.uni-augsburg.de, bwolfgang.mueller@physik.uni-augsburg.de, cramona.roessle@physik.uni-augsburg.de, dhorn@physik.uni-augsburg.de Keywords: Carbon fiber, Polymer matrix composite, recycling, surface modification, plasma treatment, re-infiltration, fiber-matrix-adhesion Abstract.
The loss of matrix material during the process has been determined to 58 ± 4 %. [5] X-ray photoelectron spectroscopy.
Journal of Materials Science. 2011, Vol. 46, 4, pp. 964-974
Recycling of woven carbon fiber patches from laminated CFRP by means of induction heating. 20th International Conference on Composite Materials, Copenhagen. 2015
Journal of Materials Science. 2013, pp. 6803-6810

Composites may be preferred for many reasons: common examples include materials which are stronger, lighter, or less expensive when compared to traditional materials.
Materials are tested in pairs under nominally non-abrasive conditions.
Mechanics of Composite Materials (2nd ed.).
Journal of materials processing technology 198 (2008) 220-225
Yang b “Mechanical properties of hot-pressed Al2O3/SiC composites” a School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 China [12] K.

Analysis on the Twinning of FCC Metals by EBSD Guangsheng Song1,a Shihong Zhang2,b Ming Cheng2,c Bin Wang2,d 1School of Materials Science and Engineering, Shenyang Aeronautic University, Shenyang, Liaoning, 110136, China 2Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, 110017, China aSonggs17@163.com, bShzhang@imr.ac.cn, cMcheng@imr.ac.cn, dBwang@imr.ac.cn Keywords: FCC Metals, Twinning, EBSD, Superalloy Abstract.
(3) Based on the EBSD measured results, the method of analyzing on the twinning of FCC metals was used to analyze the crystallographic characteristic of twinning of GH690 and GH145 superalloy specimens Acknowledgements This work has been supported by the National Natural Science Foundation of China with Grant Number: 50834008.
Mahajan: Progress in Materials Science Vol. 39 (1995), p. 1 [2] Liu Wen-xi: ACTA METALLURGICA SINICA Vol. 14 (1978), p. 397(In Chinese) [3] N.
Barnet: Materials Science and Engineering A Vol. 516 (2009), p. 226 [4] Zohreh Keshavarz and Matthew R.
Lee: INTERNATIONAL Journal of Plasticity Vol. 24 (2008), p. 545-582

By means of finite element analysis of the bearing and the matching spindle respectively, it can be known that thermal property of the designed liquid sliding bearing can meet the working demands of high-speed roller grinding, and the designed spindle can meet the demands of strength and stiffness under the condition of high-speed grinding, thus, important reference materials for forming core technologies of high-speed roller grinding head are provided.
Fig. 3 Mesh division of liquid sliding bearing of high-speed roller grinding head When the speed of the spindle is 3000r/min, according to the practical size and material performances of the liquid sliding bearing shown in Fig.1, it can be figured out that the convective heat transfer coefficient between the liquid sliding bearing and lubricating oil is 131.25 , and the convective heat transfer coefficient between the liquid sliding bearing and ambient air is 149.54, and the initial temperature is 25℃.
Acknowledgements This project was supported by National Natural Science Foundation of China (Grant No. 51165002), Open Fund of the State Key Lab of Fluid Power Transmission and Control (Grant No.
Journal of Northeastern University(Natural Science), Vol.24(6) (2003), pp.564-568.

High purity aluminum (99. 9 %), magnesium (99. 9 %) and zinc (99 %), and Al-Zr, Al-Cu, Al-Cr and Al-Yb alloys as raw materials were smelted into the alloys.
Warren, Jr.: Advanced Materials and process, Vol. 10 (1992), p. 17-20 [2] A.L.
Ray: Advanced Materials and process Vol. 10 (1991), p. 46-49 [3] M.L.
Ryum: International Materials Review, Vol. 50 (2005), p. 19-44 [11] Y.L.
Li, et al: Metallurgical and Materials Transactions, Vol. 30A (1999), p.1017-1024 [12] X.Y.