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As per available reports about 64 Journals, 32 Conferences, 169 Conference Proceedings, 31 National symposiums are exclusively dedicated to Alloy and about 89 Open Access Articles are published on Alloy.
Alloy is a composition of either 1/2 metals or 1 metal and 1 non metal. An alloy may be a solid solution of the elements (a single phase) or a mixture of metallic phases (two or more solutions) or an intermetallic compound with no distinct boundary between the phases. Alloys are used in such a condition that their properties are superior to those of the pure component elements for a given application. Some examples of alloys are solder, steel, brass, phosphor bronze, pewter and amalgam. Depending on the atomic arrangement that forms the alloy, they are classifies as substitutional or interstitial alloys.
Substitutional alloys: If the atoms are relatively alike in size, the atom exchange method usually happens, where some of the atoms comprising the metallic crystals are replaced with atoms of the other constituent. The alloys formed through this mechanism are referred as Substitutional alloys.
E.g.: Bronze and Brass
Interstitial alloys: One atom is commonly much smaller than the other, so it cannot replace an atom in the crystals of the base metal successfully. The smaller atoms get trapped in the spaces between the atoms in the crystal matrix, called the interstices. The alloys formed through this mechanism are referred as interstitial alloys.
E.g.: Stainless steel
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Scope and Importance:
Pure metals possess few important physical and metallic properties, such as melting point, boiling point, density, specific gravity, high malleability, ductility, and heat and electrical conductivity. These properties can be modified and enhanced by alloying it with some other metal or non-metal, according to the need. Enhance the hardness of a metal: An alloy is harder than its components. Pure metals are generally soft. The hardness of a metal can be enhanced by alloying it with another metal or non-metal. Lower the melting point: Pure metals have a high melting point. The melting point lowers when pure metals are alloyed with other metals or non-metals. This makes the metals easily fusible. This property is utilized to make useful alloys called solders. Enhance tensile strength: Alloy formation increases the tensile strength of the parent metal. Enhance corrosion resistance: Alloys are more resistant to corrosion than pure metals. Metals in pure form are chemically reactive and can be easily corroded by the surrounding atmospheric gases and moisture. Alloying a metal increases the inertness of the metal, which, in turn, increases corrosion resistance. Modify colour: The colour of pure metal can be modified by alloying it with other metals or non-metals containing suitable colour pigments. Provide better castability: One of the most essential requirements of getting good castings is the expansion of the metal on solidification.
Global high performance alloys market is expected to reach USD 9.26 billion by 2020, according to a new study by Grand View Research, Inc. Aerospace application dominated the high performance alloys market accounting for over 55% of global demand in 2013. Growing demand for light weight alloys in aerospace industry coupled with increasing low cost carriers resulting in higher demand for new aircrafts is expected to augment market growth.
North America was the largest regional market accounting for over 40% of global high performance alloys market demand in 2013. Increasing R&D investment aimed at use of novel high performance materials in aerospace industry is expected to help the region maintain dominance over the forecast period. In addition, favourable government initiatives including ‘The National Space Policy’ for promoting investment in aerospace industry is expected to augment market demand. Asia Pacific is expected to witness above average growth rates over the next six years owing to the growing aviation industry coupled with increasing demand for high durability metals in gas turbines and electrical & electronics.
1. ASM (American Society for Metals)
2. The French Society for Metallurgy and Materials
3. Materials research societies
March 14-16, 2016 London, UK.
40th Advanced Ceramics and Composites Conference
24-29 Jan 2016, Florida, United States.
2nd Smart Materials and Surfaces Conference SMS KOREA-2016,
3-25 March 2016, Seoul, South Korea.
Metallurgical Coatings and Thin Films conference
25-29 Apr 2016, San Diego, United States.
Ferro Alloys Corporation Limited
Gulf Ferro Alloys Company (SABAYEK)
Metal Alloys Corporation
Sierra Alloys Co
Maithan Alloys Ltd
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This page was last updated on September 30, 2020