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This study investigates the α→β phase transformation which Ti-0.5Zn alloy undergoes on being subjected to heat treatment with the aim of improving its properties and to enhance its industrial application.
Titanium alloys are available in α-phase, α+β – phase and β - phase.
Petraroli: A Study of the Microstructure and Hardness of Two Titanium Alloys: Commercially Pure and Ti-6Al-4V, Journal of Alloys and Compounds.
Markovsky: Enhancing the Mechanical Properties of Titanium Alloys with Rapid Heat Treatment, Journal of Metals (JOM).
Ninnomi: Biocompatibility of Ti-Alloys for Long-Term Implantation, Journal of the Mechanical Behaviour of Biomedical Materials.

The first decline, at around 200 °C represents the evaporation of liquids, solvents and other volatile compounds, while the second and most relevant decline has a maximum at approximately 550 °C, corresponding to total decomposition.
In order to allow solvents, water and other volatile compounds from the organic binder and brazing cloth to evaporate, a 15 min holding time was set.
Journal of Refractory Metals & Hard Materials, 28 (2010) 95-105
Journal of Refractory Metals and Hard Materials, 35 (2012) 246-250
Bao, Wear-resistant WC composite hard coatings by brazing, Journal of Materials Engineering and Performance, 13 (2004) 385-388

The shaded area represents the PE NiTi alloys (c) PTTs of NiTi alloys compacts sintered at 1138oC for 2 hours [2].
HIP guaranteed the good mechanical behaviour of NiTi and not really aimed for porous part.
Migliavacca, Biomedical Applications of Shape Memory Alloys, J.of Metallurgy, vol. 2011, no.
Influence of Ni on martensitic phase transformations in NiTi shape memory alloys Acta Materialia 58(9): 3444-3458
Processing of porous TiNi alloys using magnesium as space holder Journal of Alloys and Compounds 478(1-2): 705- 710

Take widely manufactured brand YG8 for example, in same ball milling, we find that the alloys have a lot of pores when we used stearic acid in ball milling media hexane, but the result is much better when we used other surfactants [8].
So there could be weak forces between oleic acid molecule and powder especially in the case of cobalt. 3.2 Data of mechanical property tests Table 2-Table 5 shows the change of mechanical properties of alloys when the ball milling time is prolonging.
The formatted compounds could not be debinded, and they are residue in alloy inside.
The cause is that lauric acid could react with cobalt in ball milling process; the formatted compounds are residue in alloy inside, so that the content of carbon is the highest along with the highest magnetic force.
Tanaka, et al.Journal of the European Ceramic Society. 880(2007)27-32 [5] Li X, Li D, Zhao L, et al.

Introduction Aluminium-Silicon alloys constitute an important class of aluminium foundry alloys.
The most important aluminium silicon alloys are based on the aluminium system, especially the hypoeutectic alloys with compositions ranging from 7 to 11wt% silicon.
Al-Si alloys are very popular owing to their low density and mechanical strength, which depend on their structure.
It is supposed that the cause of the decreasing strontium quantity is that the strontium oxidizes and/ or compounds develop.
Hogan: Journal of Crystal Growth (1975), pp.171-187

Concequently, the mechanical properties of Mg alloys decrease quickly, preventing the application of Mg alloys in clinic [5,6].
This study aims to prepare fluoride conversion coatings on the surface of magnesium alloys and investigate their corrosion behavior in Hank’s solutions.
Schulz: Journal of Materials Science & Technology vol. 28(2012), p. 261-267 [4] F.
Journal of Alloys and Compounds vol. 336 (2002), p. 88-92
Jiang: Study of compatibility for fluoride treated biodegradable AZ31B magnesium alloys.

As a rule, this is due to the fact that not only an oxide-resistant Al2O3 oxide film is formed on the surface of ingots, but also the inclusion of other phases having different electrochemical potentials (compounds with Fe, Si, Mg, Cu, etc.) which causes damage due to electrochemical corrosion [12-18].
The aim of this study was to explore the nature and conditions of formation of white patches on the surface continuously cast ingots of 6000 series alloys.
Pickering, The Localized Corrosion of Al 6XXX Alloys JOM the journal of the Minerals Metals Materials Society, 53(7) (2001) 42-46
Alkire, Influence of Fe-rich intermetallic inclusions on pit initiation on aluminum alloys in aerated NaCl, Journal of the electrochemical society 146 (1999) 517-523 [8] R.
Stiller, The precipitation sequence in Al–Mg–Si alloys.

In all types of welding methods, intermetallic compounds are produced inevitably by welding and joint strength is influenced by the amount of intermetallic compounds.
In this study, cold rolled steel (SPCC, 1mm thick) and aluminum alloys (A1100 and A5052 with 1mm, 2mm thick each) were used in welding experiment with no filler metal.
Commercially available cold rolled steel SPCC of 1mm thick and aluminum alloys are used in present welding experiments.
Aluminum alloys used are A1100 and A5052(2.52% Mg) of both 1mm and 2mm thick and the combinations of materials used are given in Table 1.
But as the welding speed become lower, the heat input is large and consequently the intermeatllic compounds layer become bigger.

In the present study, aiming to provide a more comprehensive investigation to the role of hydrogen in Ti-Ni-based shape memory alloys, we systematically studied the hydrogen effect on martensitic transformation behavior, and twinning stress.
In the present paper, aiming to explore the overlooked hydrogen effect in shape memory alloys, we will systematically study the transformation behavior and mechanical properties in the H-containing and H-free Ti-Ni-based alloys.
Experimental Ti50Ni47Fe3 and Ti50Ni50 alloys were used in the present study.
Mazzolai, Journal of Alloys and Compounds 446 (2007) 204-207
Honma, Journal De Physique 43 (1982) 225-230

Some of the popular lightweight alloys that have come to manufacturers' attention are aluminium and magnesium alloys.
Figures a, b and c show approach, plunge and retract stages. [11] The significant issues with friction stir spot welding of dissimilar alloys are the formation of brittle intermetallic compounds [12,13] and the hook formation defect [14].
[13] Xu Y, Ke L, Mao Y, Liu Q, Xie J and Zeng H, Formation Investigation of Intermetallic Compounds of Thick Plate Al/Mg Alloys Joint by Friction Stir Welding, sep 2019, Materials (Basel), 12(17), 2661
[16] Choi DH, Ahn BW, Lee CY, Yeon YM, Song K, Jung SB, Formation of intermetallic compounds in Al and Mg alloy interface during friction stir spot welding, 2011, Intermetallics, 19, 125-130
[24] Abbassi F, Srinivasan M, Loganathan C, Narayanasamy R and Gupta M, Experimental and numerical analyses of magnesium alloy hot workability, dec 2016, Journal of Magnesium and Alloys, 4, 295-301