Search results

This study is aimed at investigating the performance of saramet compared to other austenitic stainless steel (SS) types.
Since the alloys exhibit active-passive behavior, the change in corrosion rate from one condition to another maybe very marked[7].
References [1] M.Martin, S.Weber, W.Theisen, T.Michler, J.Naumann, Effect of Alloying Elements on hydrogen environment embritltlement of AISI 304 austenitic stainless steel,, International Journal Of Hydrogen Energy. 36 (2011) 1588-15898
Clarke, Saramet Alloys,-Application in Demanding Sulfuric Acid Applications, Alche Convetion, Florida,USA, June 2003
[7] Inco-Sterling Forest, The Corrosion Resistance of Nickel-Containing Alloys in Sulfuric Acid and Related Compounds, NY, 1983.

The final aim was to produce TiCl4 at low temperatures (≤500°C) using the latter samples.
Journal of the American Ceramic Society, 2011. 94: p. 3804-3811
Journal of Alloys and Compounds, 2014. 587: p. 442-450
Journal of the American Chemical Society, 1920. 42(2): p. 237-239
Chase , J., NIST-JANAF Thermochemical Tables, in Journal of Am.

The Effect of Microwave Sintering Time to PM Aluminum Alloys Mohd Nazree Derman1, aSyaza Nabilla Mohd Suhaimi2 and Zuraidawani Che Daud2 1Institute of Nano Electronic Engineering (INEE), Universiti Malaysia Perlis (UniMAP), P.O.Box 77, D/A, Pejabat Pos Besar Kangar,01000 Kangar, Perlis Malaysia 2Centre of Excellent Geoploymer and Green Technology, School of Materials Engineering, Universiti Malaysia Perlis (UniMAP),P.O.Box 77, D/A, Pejabat Pos Besar Kangar, 01000 Kangar, Perlis, Malaysia anazree@unimap.edu.my, bsyazanabilla@gmail.com, czuraidawani@unimap.edu.my Keywords: microwave, powder metallurgy, sintering, aluminium.
Microwave sintering is new sintering technology method to produce Al alloys.
This includes bizarre alloying processes and microstructures modification [1-2].
In this experiment, the aim is to analyse the properties of pure aluminium in compressed powder form in response to heat radiation via microwave sintering process.
Ayappa: AIChE Journal (1998), p 2303-2311 [4] Morteza Oghbaei, Omid Mirzaee: Journal of Alloy and Compound Vol. 494 (2010) p 175-189 [5] Avijit Modal, Dinesh Agrawal, Anish Upadhyaya: Journal of Microwave Power & Electromagnetic Online Vol.43 No.1 (2009) p 43 [6] B.K.

Aluminum alloys are materials that have a strong tendency to galling when they are cold formed.
Nonetheless aluminum alloys are subjected to galling when manufactured by metal forming.
They are not affected by the presence of hard compounds of the contactor surface (Fig. 4a).
They exhibit the onset of galling is mainly driven by tool roughness, it does not strongly affect the coefficient of friction, and it is not influence by the presence of hard compounds at the surface of the tool.
Journal of Engineering Materials and Technology,107 (1985) 83-89 [11] Y.

As aluminum alloy is a common material used in impellers, in this paper, orthogonal machining experiments are taken, which aims at find out the laws of multiple factors affecting the surface roughness of aluminum alloy ruled surface blade.
Aiming at the influence of cutter rigidity, 3 main factors are considered: cutter type, cutter material and overhanging length of the cutter.
Among all factors, the milling type has 2 levels while the rest factors have 3 levels, which needs pseudo-level method to transform compounded levels to equal levels.
Journal of Nanjing University of Science and Technology, 2010, 4.
Journal of Heilongjiang Institute of Science and Technology, 2010, 20 (2).

With the right understanding about the phases, the aim is the suitable heat-treating processes would be chose to avoid the unfavorable influences of secondary phases.
Intermetallic compounds which consisted mainly of Fe, Cr, Mo elements precipitated in the wide temperature distribution range.
[2] Kwang Min Lee, Hoon Sung Cho, Dap Chun Choi, Effect of isothermal treatment of SAF 2205 duplex stainless steel on migration of δ/γ interface boundary and growth of austenite, Journal of Alloys and Compounds. 285 (1999) 156-161
Wang, The influence of solution treatment temperature on microstructure and corrosion behavior of high temperature ageing in 25% Cr duplex stainless steel, Journal of Alloys and Compounds. 509 (2011) 8870-8879
[6] Okafor ICI, Carlson ON, Equilibrium studies on a chi-phase strengthened ferritic alloy, Metall Trans A. 1978, 9:1651–7

In the past few years, increasing interest rose towards the application of PM approach to non-ferrous metal, essentially considering copper, aluminum and, more recently, titanium alloys [1].
The fast processing rate of this technology inhibits the crystallisation phenomena typical of thermal processes, enabling the obtaining of extremely fine and nanometric microstructures and metastable compounds [10].
Research on precious metals is mainly focused towards dental restoration and biomedical devices: high caratage gold alloys and selected platinum alloys have therefore been studied [17].
Study and optimization of sintering process for other alloys is the main goal to be achieved to a more intensive exploiting of precious PM.
Silva, “On the hot pressing of coloured high-gold alloys powder compacts applied to the manufacturing of innovative jewellery items,” Gold Bulletin, pp. 117–125, 2013

This makes titanium (Ti) alloys suitable candidates for high performance applications.
There are two main approaches that can be followed in PM of Ti alloys, depending on the starting powders: pre-alloyed (PA) and blended elemental (BE).
The aim of this work is to tailor the mechanical properties of extruded Ti-6Al-4V alloy rods from sintered BE powder compacts via modification of the microstructure.
Lu, Effects of LaB6 additions on the microstructure and mechanical properties of a sintered and hot worked P/M Ti alloy, Journal of Alloys and Compounds 674 (2016) 116-124
Froes, Tensile and Fatigue Strength Improvement of Titanium PM Alloys through Microstructural Refinement, Strength of Metals and Alloys (ICSMA 8), Pergamon, Oxford, 1989, pp. 527-533

tribometer test bench Figure 13 The SEM micrograph of wear track of Ni-Cr-B-Si-C-W at different tests 4 Conclusions This work highlights the different tribological behaviors presented by the matrix (Ni (g),Ni3B) and the hard compounds (carbides M7C3,M6C).
Razov, Investigation of the Influence of High Hydrostatic Pressure on the Abrasive Wear of Hard-Alloy Materials, Journal of Friction and Wear, 2017, Vol. 38, No. 4, pp. 286–291
Hamar-Thibault, Morphology of some Ni-based industrial coating alloys, Materials.
Hamar-Thibault, Structure and morphology of carbidesformed by solidification in some Nickel-Based alloys, Ann.
“Structure, morphology of M6C carbides formed by solidification in some nickel based alloys”.

These materials were selected mainly because of the authors’ FSW experience with aluminum and magnesium alloys [7,8].
The maximum penetration depth for this cross-section is 0.6mm from the weld centerline for both alloys.
Pal, Characterizations of weld defects, intermetallic compounds and mechanical properties of friction stir lap welded dissimilar alloys, Materials Characterization, 160 (2020) 110115
Feulvarch, On material flow in Friction Stir Welded Al alloys, Journal of Materials Processing Technology, 239 (2017), 284-296
Saito, Dissimilar friction stir welding between magnesium and aluminum alloys, Materials Letters, 62 (2008) 3827-3829