Search results

., Beijing, 101407, China 3General Research Institute for Nonferrous Metals, Beijing, 100088, China 4National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China alidaquan@grinm.com, bzychang@sjtu.edu.cn, cfengjian@grinm.com, dwuyj@sjtu.edu.cn, eplm616@sjtu.edu.cn Keywords: Rheo-diecast; Mg-Gd-Y-Zn-Zr; heat treatment; microstructure; mechanical properties Abstract.
Materials and Methods The alloy was smelted from commercial purity Mg (99.95%), Zn (99.99%), Mg-87 wt% Gd, Mg-30 wt% Y and Mg-30 wt% Zr master alloys in a resistance furnace under a shielding gas atmosphere of CO2 (99vol%) and SF6(1vol%).
Ding, Microstructure and mechanical properties of Mg-Gd-Y-Zn-Zr alloy prepared by rheo-diecasting, Materials Science and Engineering A, 848(2022)143287 [6] Z.
Ding, Microstructure and strengthening mechanism of high strength Mg-10Gd-2Y-0.5Zr alloy, Journal of Alloys and Compounds, 427(2007)316-323
Ding, A study of microstructure, mechanical behavior and strengthen mechanism in the Mg-10Gd-0.2Zn-(Y)-0.4Zr alloy, Materials Science and Engineering A, 793(2020)139881.

Research on Corrosion Resistance of the GTAW Joint of Duplex Stainless Steel Tian Gang1,a, Yang Mei2, Zeng Dezhi1, Lin Yuanhua1,2, Zhu Dajiang1 and Liu Fei1, 3 1 State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, China 2 School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, 610500, China 3Research Institute of Petroleum Engineering, SINOPEC, Beijing 100101,China azengdezhiswpu@163.com Keywords: Duplex stainless steel, Gas tungsten arc welding, Crevice corrosion, Average corrosion rate Abstract.
But local heating, thermal cycle and shrink of materials in welding process will make the performances of weld and parent material different, especially the corrosion resistance [2].
Test materials and welding process Test materials .The chemical composition of S31803 duplex stainless steel is shown in Table 1.
The Chinese Journal of Nonferrous Metals, 2001, 11(1): 194-197
Corrosion Science, 2002, 44(12): 2841-2856

The main problem currently affecting the development of the mold industry in Thailand is the lack of human resource in the mold industries who have knowledge, skill, and positive attitude that is needed to run the machinery (including CNC, measuring instruments, basic mechanical tools, molding, drawing and design by computer, mold maintenance, materials, safety and pollution control) and including a poor understanding of mathematics, the sciences and the English language [7, 8].
Skills for operation level consisted of reading and drawing mechanical works, fining measurement, adjusting and assembling, having all mechanical works (lathe, milling, drilling, grinding and screwing), technical materials, metal forming, mathematics in industry, English and safety in factory respectively.
Skills for expert operation level consisted of industrial materials, mechanical drawing, metal shaping, advance Mechanical in mold, design molding, mechanical work by CNC, fine measuring, Mold & Die theory, mechanical work, maintenance mold, adjusted and assemble mold, planning in process and technical English respectively.
, Mold Journal, February, 2002, pp. 35
“Research Methodology for Social Sciences”.

Tungsten (W) and Copper-alloy (CuCrZr) have been considered as the potential candidates for armor materials and heat sinking materials, respectively, due to their attractive nuclear and physical properties.
Geometric structure, materials, dimension and mesh for constructed model.
The PFC consists of three sections with different materials.
It should be noted that the tensile stresses in brittle materials, experimentally observed by X-ray diffraction, are more harmful to the PFCs integrity since brittle materials cannot withstand high tensile loading [9].
Linke: Journal of Thermal Spray Technology Vol. 16 (2007), p. 64 [6] J.H.

Lv[6] discussed the influence on the maximum stress under operating case using two welding materials at entry of tubesheet structure.
These materials are most commonly used to construct heat exchangers in China.
(3) It is possible that the maximum tensile stress at the tubesheet comprised by the thermal tensile stress and pressure induced tensile stress will exceed the tensile strength of the materials and initiate cracks in the tubesheet.
Acknowledgement This work is supported by the Beijing Natural Science Foundation (Grant No. 3002009) and China Petroleum & Chemical Corporation (Contract No. 308036).
Liu, Q.W.Dong, D.B.Wang, X.Ling: International Journal of Pressure Vessels and Piping 76(1999) 671–675(In chinese) [6] H.

Johnson: International Journal of Production Research, Vol.38 (2000), p.481
Johnson: International Journal of Production Research, Vol.35 (1997), p.29
Chow: Journal of Manufacturing Systems, Vol.6 (1987)1987, p.117
Ye: Journal of Applied Sciences, Vol.26 (2008), p.100
Chen:International journal of Production Economics, Vol.103(2006),p.767

In order to overcoming its deflection problem, for the needle, we will use highly rigid material, and for the robotic system, we will employ the method of inserting with rotation.
Rezai:Neuromodulation(Elsevier Ltd,2009) [3] Bai-Chuang Shyu, Chun-Yu Lin, Jyh-Jang Sun,Sergiy Sylantyev, Chen Chang: Journal of Neuroscience Methods 137 (2004) 123–131 [4] Wu Jing, Wang Wenchao, Li Lin, Liu Li, Wang Guimei,: Journal of Neuroscience Methods 193 (2010) 203–209 [5] B.
Deuschl: Neuromodulation(Elsevier Science,June 2009) [9] Ozkan Bebek, Myun Joong Hwang, Baowei Fei and M.
Blazquez: Journal of Neuroscience Methods 178 (2009) 255–262 [12] Noah J.
Chirikjian, Gabor Fichtinger, The International Journal of Robotics Research May 2006vol. 25no. 5-6509-525 [13] Nada Yousif, Richard Bayford, Peter G.

Saha, Aluminum extrusion technology, ASM International, Materials Park, OH, USA, 2000
Heffron, The effects of Nitrogen - liquid and gaseous - on aluminum extrusion productivity, JOM - The Journal of The Minerals, Metals & Materials Society, vol. 36, pp. 29-33, 1984
Reggiani, et al, Effect of liquid nitrogen die cooling on extrusion process conditions, Key Engineering Materials, 491 (2012) 215-222
Tomesani, Extrusion of Light and Ultralight Alloys with Liquid Nitrogen Conformal Cooled Dies: Process Analysis and Simulation, Journal of Materials Engineering and Performance, (2021)
Yannacopoulos, On the effect of different material constitutive equations in modeling friction stir welding: A review and comparative study on aluminum 6061, International Journal of Advances in Engineering & Technology, 7 (1) (2014) 1-20

Materials Science and Technology, 2002, 01: 100-6
Materials Science and Engineering A, 1998, 243: 244-249
Materials Science and Engineering A, 2006, 438-440: 391394
Materials Science and Engineering A, 1999, 260A(1-2): 269-274
Materials Science and Engineering A, 2001, 312: 182-188

Effects of Gas Property on Quality of NiCoCrAlY Coating by Cold Gas Dynamic Spraying Sheng-qiang FENG1,2,a, Bing MA1,b, Xiu-ling WANG1,c and Guo-ping LING2,d 1Ningbo Branch of China Academy of Ordnance Science, Ningbo 315103, China 2Department of Materials science And Engineering, Zhejiang University, Hangzhou 310027, China afsq7980@hotmail.com, bmabing_008@hotmail.com, cxlwang@163.com, dlinggp@zju.edu.cn.
Acknowledgements This work was financially supported by Ningbo key scientific and technological project (2012C5018) and China North Material Science and Engineering Technology Group Foundation (NFJ201203).
New materials and technologies.
Theory and Practice of Materials Hardening in Extremal Processes.
[6] Alkhimov A P, Klinkov S V, Kosarev V F: Journal of Appl Mech and Tech Phy Vol. 41(2000), p.245-250