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Introduction Traditional alloying can be used to increase strength and ductility of Mg.
Accordingly, the primary aim of this study was to: (a) strengthen the Mg-Al bimetal macrointerface by design and (b) assess the consequent effects on microstructure and mechanical properties.
Magnesium / aluminium macrocomposites containing Mg / alloy shell and Al / alloy core can be synthesized using a combination of the DMD method and top-pouring, followed by hot coextrusion. 2.
[2] Hassan, S.F. & Gupta, M. (2002) Development of ductile magnesium composite materials using titanium as reinforcement, Journal of Alloys & Compounds 345, 246-251
[5] Gupta, M., Lai, M.O. & Lim, S.C. (1997) Regarding the processing associated microstructure and mechanical properties improvement of an Al-4.5 Cu alloy, Journal of Alloys & Compounds 260, 250-255

One of them is by reducing long-range ordering or grain size of intermetallic compounds [1, 2].
Nowadays, mechanical activation has come to the fore in fields such as the production of intermetallic compounds [4, 5], supersaturated solid solutions [6], amorphous materials and metal matrix composites.
Fadeeva: Journal of Alloys and Compounds Vol. 308 (2000) 230 [4] C.
Li: Chinese Journal of Aeronautics, Vol. 10 (1997), p. 127 [9] K.
Fabeeva: Journal of Alloys and Compounds, Vol. 308 (2000), p. 230 [10] Z.

Semi-solid metal forming of aluminium alloys has demonstrated the capability to produce near net shaped high integrity components.
Masuku, The influence of liquid surface segregation on the pitting corrosion behaviour of Semi-Solid metal high pressure die cast alloy F357, The open corrosion journal, 2(2009) 216-220 [4] J.M.Bastidas, A.
Govender, Anodising of Al-Mg-Si-(Cu) alloys produced by R-HPDC, Materials Science Forum, 765 (2013) 658-662
Masuku, Charactcterisation of surface liquid segregation in SSM-HPDC aluminium alloys, Trans.
Ahlatci, Production and corrosion behaviour of the Al-Si-XMg alloys containing in-situ Mg2Si particles, Journal of Alloys and Compounds, no.1 vol 503, P122-126

The paper present some general aspects regarding results obtained by ISIM Timișoara at FSW of steel alloys, with wide use in important industrial fields.
Experimental Program The experimental programs for the FSW steels were carried out at ISIM Timișoara, ensuring more severe technical and technological conditions, compared to those from the welding of light alloys (except for titanium alloys)
It has been shown that, when applying the FSW process to welding S 420MC steel, granulation refining in the nugget is obtained, similar to aluminum alloys.
Under the shoulder of the welding tool and under its action, a darker area (A) was formed in which it is possible to have formed intermetallic compounds or other formed compounds, due to excessive wear of the tool during the action of the tool on the base metals.
• It has been shown that when applying the FSW process to welding S420MC steel, granulation refining in the nugget is obtained, similar to aluminum alloys.

Therefore, it is urgent need to solve problem for Ni3Al alloys welding in industrial applications.
This study aims to solve the solidification crack of Ni3Al base alloy casting with the method of laser welding.
References [1] Yonggang Zhang, Yafang Han, Guoliang Chen: Structure Material of The Metal Compounds, defense industry publishing, p. 546-631,(2001) {In Chinese} [2] Huaxin Li, R.H.Jones, Effect of pre-welding heat treatments on welding a two-phase Ni3Al alloy, Materials Science and Engineering A192/193(1995)563-569 [3] C.T.Liu, J.Stringer, J.N.Mundy, L.L.Horton, P.Angelini, Ordered intermetallic alloys: an assessment, Intermetallics 5(1997)579-596 [4] Hili Luo, Wujun Ye, Di Feng: Art Of Structure Weld Research For Intermetallic Ni3Al Alloy, edited by The high technology communication, 30-40, (1999) {In Chinese} [5] Yunrong Zheng: Hf For Crack Effect On Casting Ni-based High-temperature Alloy Welding, submitted to Welding Journal, p. 161-170,(1988) {In Chinese} [6] Huaxin Li and Y.K.Chaki, in VA.
Whittenberger and M.H.Yoo (eds), High-Temperature Ordered Intermetallic Alloys V.
Technol, p. 10-26 (1994), [9] Yunrong Zheng, Yulin Cai, Zhongci Ruan: Hf and Zr Mechanism Research In High Temperature Materials, submitted to The Journal of Aviation Materials, volume 6 of Progress, p. 25-34 (2006) {In Chinese} [10] Zhiyong Mao: Electron Beam Welding Research of Ni3Al Intermetallic Compounds, In Journal of electron beam processing technology supplement, p. 34-37 (1999) {In Chinese}

However, magnesium-based alloys are susceptible to galvanic corrosion and thus the use of magnesium and its alloys is severely limited [1, 2 ，3].
Due to environmental hazards of chromate compounds, environmentally acceptable alternative chemical conversion coatings have been explored [14].
The aim of this work was to develop the phosphate and stannate conversion treatments on die-cast AZ91D magnesium alloys and to study the surface pretreatment technology, the composition and morphology of the chemical conversion coatings and their corrosion resistance.
Microflaw and phases constitution of ceramic coating formed by micro-arc oxidation on magnesium alloys and their influence on corrosion-resistance[J].The Chinese Journal of Nonferrous Metals,2002,12(3):454-457
Corrosion Resistance of the Casting AZ91D Magnesium Alloys with Paint Finishing[J], Journal of Japan Institute of Light Metals, 1998,48(5):248-255

Review on research and development of magnesium alloys.
Magnesium alloys development towards the 21st century.
Journal of alloys and compounds. 2002, 336, 88-113
Journal of Alloys and compounds, 2010, 494(1): 271-274
Magnesium and its alloys as orthopedic biomaterials: a review[J].

The aim of this research is to investigate the effect of grain size on the mechanical properties and deformability of titanium alloy in equal channel and cross-sectional reduction channel angular pressing process.
The aim of this study is to investigate the effect of grain size on the mechanical properties and deformability of titanium alloy in equal channel and cross-sectional reduction channel angular pressing process by finite element modeling.
Journal of Materials Processing Technology,119(1): p. 307-311.(2001)
International Journal of Plasticity, 55: p. 25-42.(2014)
Journal of Alloys and Compounds, 558: p. 164-171.(2013)

The aim was to identify any defects and if bed piss water cut in some way influence the surface quality and dimensional contours right.
The aim was to identify any defects and if bed piss water cut in some way influence the surface quality and dimensional contours right.
Monno, Experimental study of the features of the kerf generated by a 200 A high tolerance plasma arc cutting system, 2008 in Journal of Materials Processing Technology Volume 196, Issues 1-3, 21 January 2008, Pages 345-355, [5] SR EN ISO 9013:2003 Thermal cutting.
Vizureanu, Chemical Compounds Analysis Developed on the Micro Alloying Area of Coating Layers Obtained by Impulse Discharge Method, Revista de Chimie (Bucharest) 65, 6, (2014) 694-696
Ardelean, Rusu, L.C., Surface Characterization of Some CoCrMo Alloys Used in RPD Technology, Revista de Chimie (Bucharest) 63, 9, (2012) 906-910.

acicerojunior15@hotmail.com, bpaulowilmar@df.ufscar.br, codila@df.ufscar.br Keywords: bulk metallic glasses, AFM, CuZrAl alloys, amorphous alloys.
The aim of this work is characterizing the surface of two compositions and comparing the obtained results for the alloy, with another without erbium in samples of similar concentrations.
Takeuchi, Recent progress in Bulk Glassy Alloys.
Amorphous Zr-Cu thin-film alloys with metallic glass behavior, Journal of Alloys and Compounds, 696 (2017) 1298-1306
Yang, Effect of laser surface melting on bulk metallic glass: Investigation of microstructure, microhardness, friction and wear properties, Journal of Alloys and Compounds, 732 (2018), 792-798