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McAdam 3 1 CAST Cooperative Research Centre, Chemical Engineering, Monash University, Clayton, VIC 3800 2 CAST Cooperative Research Centre, Swinburne University of Technology, IRIS, Hawthorn, VIC 3122 3 Defence Science and Technology Organisation, Fishermans Bend, VIC-3207 a parama.banerjee@eng.monash.edu.au Keywords: laser, microstructure, corrosion, magnesium Abstract In the present study, surface melting of a magnesium alloy, ZE41 (4%-Zn, 1%-RE) is performed by an Nd:YAG laser (operating in a continuous wave mode).
References [1] Abbas, G. and Liu, Z., Skeldon, P. (2005) Corrosion behaviour of laser melted magnesium alloys, Applied Surface Science 247, 347-353 [2] Jun, J.H., Park, B.K., Kim, J.M., Kim, K.T. and Jung, W.J. (2006) Microstructures and mechanical properties of Mg-Zn-RE-Ca casting alloys, Material Science Forum 510-511, 214217 [3] Cao, X., Xiao, M., Jahazi, M. and Immarigeon, J.P. (2005) Continuous wave Nd:YAG laser welding of sand-cast ZE41A-T5 magnesium alloys, Materials and Manufacturing Processes 20, 987-1004 [4] Song, G.L. and Atrens, A. (1999) Corrosion mechanism for Mg alloys, Advanced Engineering Materials 1(1), 11-33 [5] Ignat, S., Sallamand, P., Grevey, D. and Lambertin, M. (2004) Magnesium alloys (WE43 and ZE41) characterization for laser applications, Applied Surface Science 233, 382-391 [6] [6] Majumdar, J.Dutta., Galun, R., Mordike, B.L. and Manna, I. (2003) Effect of laser surface melting on corrosion and wear resistance of a commercial magnesium
alloy, Materials Science & Engineering A 361, 119-129
(eds) The Metals Society of AIME, Warrendale, PA, 1-10 [8] Koutsomichalis, A., Saettas, L. and Badekas, H. (1994) Laser treatment of magnesium, Journal of Material Science 29, 6543-6547 [9] Kalimullin, R.K., Valuev, V.V. and Berdnikov, A.T. (1986) The effect of surface laser treatment on the creep of magnesium-lithium alloy MA21, Metal Science Heat Treatment 28, 668-670 [10] Dubé, D., Fiset, M., Couture, A. and Nakatsugawa, I. (2001) Characterization and performance of laser melted AZ91D and AM60B, Material Science and Engineering A 299, 38-45 [11] Zhao, M.C., Liu, M., Song, G.L., and Atrens, A. (2008) Influence of microstructure on corrosion of As-cast ZE41, Advanced Engineering Materials 10(1-2), 104-111 [12] Jun, J.H., Kim, J.M., Park, B.K., Kim, K.T. and Jung, W.J. (2005) Effects of rare earth elements on microstructure and high temperature mechanical properties of ZC63 alloy, Journal of Materials Science 40, 2659-2661 [13] Liu, S.Y., Hu, J.D., Yang,
Singh, Murray S., and Brandt, M. (2007) Laser assisted modification of surface microstructure for localised corrosion resistance of magnesium alloys, Surface Engineering 23, 107-111

Introduction Impact-Echo method is non-destructive acoustic methods, which has wide application and it can be used in mechanical engineering, power engineering and in many industries as well as in civil engineering [1].
Result of fast Fourier transforms are widely used for many applications in engineering, science, and mathematics.
The signal response was taken by a piezoelectric sensor MIDI and was fed to the input of an oscilloscope TiePie engineering Handyscope HS3 two-channel with resolution 16 bits.
LO1408 "AdMaS UP - Advanced Materials, Structures and Technologies", supported by Ministry of Education, Youth and Sports under the „National Sustainability Programme I" and under the project of specific research program at Brno University of Technology, project No.
In ICEBMP 2014, Advanced Materials Research.

Jelinek, Advances in Metal Finishing, An Assessment of the International Literature 2017-2018, J.
Mishurov, Experience and Perspectives of Electrodeposition from Electrolytes-Colloids of Nickel Plating, Materials Science Forum. 945 (2019) 682-687
Mishurov, Precipitation of Composite Wear-Resistant Nickel Ectrodeposits with Nanoparticles, Materials Science Forum. 992 (2020) 652-657
Metallurgical Engineering, 3, 1 (2014), pp. 29-42
Solovev, Failure Analysis of Polymer Blinder Using Acoustic Emission Method, Materials Science Forum, Vol. 992 (2020) 1030-1035.

Most of the cases the operator has to use a reverse engineering process for each alloy, varying the “constant” value, up the point where the forecast deficiencies matches those validated into practice, through castings of the same composition already manufactured.
Some of these values are sometimes found by reverse engineer process.
Silva Ribeiro; “In-House Development and Application Of Solidification Simulation Software”; Advanced Materials Forum I, 545, Tran Tech Publication

Beijing 100088, China 3GRINMAT Engineering Institute Co., Ltd.
An advanced method called internal electromagnetic stirring (I-EMS) was investigated to resolve the engineering problems like coarse-grain, inhomogeneous structure and macrosegregation.
Savran, et al, Structure formation and macrosegregation under different process conditions during DC casting, Materials Science and Engineering A,384(2004) 232-244
McCartney, The effect of electromagnetic stirring on macrostructure and macrosegregation in the aluminium alloy 7150, Materials Science and Engineering A, 222 (1997) 140-148
Katgerman, Effect of melt flow on macro- and microstructure evolution during solidification of an Al-4.5% Cu alloy, Materials Science and Engineering A, 413 (2005) 98-104

The Study of Power Unit of a Wind-Magnetic Water Heater Xiaohong Liu1, a 1School of Mechanical Engineering, Guangxi University, Guangxi Nanning 530004 agxjxlxh@126.com Keywords: Wind turbine Power transmission Water heater Eddy current heating effect Abstract.
Forum Vol. 83-87 (1992), p. 119 [1] Huashan Li, Xiaodong Feng, Tong Liu.
Modern Manufacturing Engineering.
Advanced Materials Research, 2011,(201-203):460-464.

Effects of grain refinement on rollability of AZ31 Mg alloy Qinglin Jin 1, Su-Gun Lim 1,a, Bong-Sun You 2 1 Dept. of Materials Science and Engineering., Research Center for Aircraft Parts Technology, Gyeongsang National University, Jinju, Gyeongnam, Korea 2 CAMP, Korean Institute of Machinery and Materials, Changwon, Gyeongnam, Korea aEmail: suglim@nongae.gsnu.ac.kr Keywords: AZ31, Grain refinement, Carbon addition, Hot rolling, Edge crack, Dynamic recrystallization Abstract: The initial coarse grain size of 400㎛ of a as-cast AZ31 alloy was refined to 130㎛ by carbon addition method.
Introduction The greatest advantage of choosing magnesium alloys for engineering components lies in its low density, which translates into higher specific mechanical properties[1].
Acknowledgements This research was supported by a grant from the Center for Advanced Materials Process of the 21 st Century Frontier R&D program funded by the Ministry of Science and Technology of Korea and, by the Research Center for Aircraft Part Technology of Gyeongsang National University, Korea.
Forum Vols. 419-422 (2003) p. 521

Expert System of the Parameter Optimization in the Heavy-duty Cutting Processing Yuquan Chen1,a, Zhenjia Li1,b, Denghui Zhu1,c, Zhenbo Wang1,c and Jinxing Guo1,d 1 Mechanical Engineering Department of Harbin University of Science and Technology, P.O.Box 92, 150080, China a cyq68@163.com, b lizjbox@hotmail.com, ckfzdh207@yahoo.com.cn, dgjx@163.com Keywords: Expert system, Heavy-duty cutting, Processing parameter, Optimization Abstract.
Introduction Recently, more and more advanced equipments, such as the numerical control machining centers, and new metal materials have been made and used in industries.
Wang: Tool Engineering, Vol.10 (2003), pp.39
Forum,Vol.479 (2005), pp.3283.

Performance index has no doubt to take up one of the most important aspect in designing for advanced, maturity aero-engine.
In systems engineering, decision support system has been researched for many years.
Self Diagnostic Accelerometer for mission critical health monitoring of aircraft and spacecraft engines. 47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition, 2009, 10.2514/6.2009-1457 [6] Allan Volponi, Tom Brotherton, Robert Luppold.
Journal of Engineering for Gas Turbines and Power. 2014.136/011201

Microstructural Evolution of SiCp/AZ61 Composites during Partial Remelting Hong Yan 1,a, Fa-yun Zhang 2,b and Wei Pan 3,c 1 Institute of Advanced Forming & Manufacturing and Die & Mold, Nanchang University, 999 Xuefu Road, Nanchang 330031 China 2 Xinyu College, Xinyu 338031 China 3 Jiangxi Institute of Measurement and Testing, 045 Zhannan Road, Nanchang 330002, China a hyan@ncu.edu.cn, b zfyabc111@yahoo.com.cn, c weipan_63@yahoo.com.cn Keywords: SiCp/AZ61 composites, microstructural evolution, semi-solid, partial remelting.
Wang Erde: Materials Science and Engineering Vol.
Fu: Key Engineering Materials Vol.367(2008), p.103 [5] H.
Zhang: Materials Science Forum Vol.561-565(2007), p.945 [6] T.