{"id":2532,"date":"2023-12-06T03:10:01","date_gmt":"2023-12-06T03:10:01","guid":{"rendered":"https:\/\/met3dp.com\/?p=2532"},"modified":"2023-12-06T03:11:06","modified_gmt":"2023-12-06T03:11:06","slug":"nickel-alloy-powders-20231206","status":"publish","type":"post","link":"https:\/\/met3dp.sg\/th\/nickel-alloy-powders-20231206\/","title":{"rendered":"\u0e1c\u0e07\u0e42\u0e25\u0e2b\u0e30\u0e1c\u0e2a\u0e21\u0e19\u0e34\u0e01\u0e40\u0e01\u0e34\u0e25"},"content":{"rendered":"\n

Nickel alloys refer to a broad range of heat and corrosion resistant materials where nickel constitutes over 40% of the composition. This guide provides an overview of various nickel alloy powder<\/a> types, manufacturing methods, key applications, specifications, pricing, comparisons, and frequently asked questions for procurement.<\/p>\n\n\n\n

Compositions of Nickel Alloy Powder<\/h2>\n\n\n\n
Alloy Family<\/strong><\/th>Major Alloying Elements<\/strong><\/th>Common Grades<\/strong><\/th><\/tr><\/thead>
Superalloys<\/td>Cr, Co, Mo, Ti, Al<\/td>Inconel 718, 625, Haynes 282<\/td><\/tr>
High temp alloys<\/td>Cr, Mo, W<\/td>Haynes 230, 188, HR-120<\/td><\/tr>
Corrosion resistant<\/td>Cr, Mo<\/td>Alloy C-276, 20Cb-3, G-35-1<\/td><\/tr>
Electrical \/ Electronic<\/td>Fe, Cu, Cr<\/td>Alloy 42, Kovar<\/td><\/tr>
Shape memory<\/td>Ti, Hf<\/td>Nitinol (NiTi)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Various alloying elements like chromium, cobalt, iron, copper etc. added to tune mechanical properties, improve fabrication, and enhance corrosion and wear resistance.<\/p>\n\n\n\n

\"nickel<\/figure>\n\n\n\n

Key Characteristics and Powder Properties<\/h2>\n\n\n\n
Attribute<\/strong><\/th>Typical Values<\/strong><\/th><\/tr><\/thead>
Particle shape<\/td>Spherical<\/td><\/tr>
Size range<\/td>10 \u2013 150 microns<\/td><\/tr>
Oxygen ppm<\/td>Below 500 ppm<\/td><\/tr>
Hall flow rate<\/td>Around 25 secs for 50g<\/td><\/tr>
Apparent density<\/td>2 \u2013 5 g\/cc<\/td><\/tr>
Surface oxide<\/td>Thin passivated chromia film<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Particle characteristics tailored to suit production method – additive manufacturing needs spherical powders below 100 microns whereas cold spray better with larger particles.<\/p>\n\n\n\n

Production Methods for Nickel Alloy Powder<\/h2>\n\n\n\n
Method<\/strong><\/th>Description<\/strong><\/th><\/tr><\/thead>
Gas Atomization<\/td>Inert gas disintegrates molten metal into droplet powder<\/td><\/tr>
Water Atomization<\/td>High pressure water breaks up melt stream<\/td><\/tr>
Plasma Atomization<\/td>Very clean, small production volumes<\/td><\/tr>
Carbonyl Process<\/td>Chemical precipitation from nickel carbonyl<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Gas atomization best suited for reactive alloys like superalloys, titanium etc. Water atomization more economical for high volumes above 30 microns. Plasma atomization and carbonyl route produce specialty powders.<\/p>\n\n\n\n

Applications of Nickel Alloy Powder<\/a><\/strong><\/h1>\n\n\n\n
Industry<\/strong><\/th>Common Components<\/strong><\/th><\/tr><\/thead>
Aerospace<\/td>Turbine blades, discs, transitions<\/td><\/tr>
Oil & Gas<\/td>Wellhead equipment, valves, fasteners<\/td><\/tr>
Automotive<\/td>Exhaust system parts, fuel cells<\/td><\/tr>
Chemical Process<\/td>Heat exchangers, reaction vessels<\/td><\/tr>
Medical<\/td>Implants, surgical tools<\/td><\/tr>
Additive Manufacturing<\/td>Bi-metal parts, lattices, topology optimized designs<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Nickel alloys serve critical applications needing combination of high strength and corrosion resistance at elevated temperatures.<\/p>\n\n\n\n

Specifications for Nickel Alloy Powder<\/strong><\/h1>\n\n\n\n
Standard<\/strong><\/th>Description<\/strong><\/th><\/tr><\/thead>
ASTM B162<\/td>Nickel plating grade specifications<\/td><\/tr>
ASTM B214<\/td>Porous nickel strip<\/td><\/tr>
ASTM B351<\/td>Wrought superalloy product forms<\/td><\/tr>
ASTM B777<\/td>Powder metallurgy (PM) nickel alloys<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

No universal powder specifications exist. Application and intended production method instead determines acceptance norms.<\/p>\n\n\n