Incoloy refers to a range of superalloys produced by the Special Metals Corporation group of companies. They are mostly nickel-based, and designed for excellent corrosion resistance as well as strength at high temperatures; there are specific alloys for resistance to particular chemical attacks (e.g. alloy 020 is designed to be resistant to sulphuric acid, DS to be used in heat-treating furnaces with reactive atmospheres and many heat cycles)
Incoloy MA956 is made by a mechanical alloying rather than a bulk-melting process; it was studied for space reactor components in the JIMO project. It is difficult to weld and needs to be heated to 200C for forming processes.
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|Alloy name||Balance metal||Chromium||Aluminum||Titanium||Carbon||Yttrium oxide||Copper||Manganese||Cobalt||Nickel||Phosphorus||Silicon||Sulphur||Molybdenum||Nb+Ti|
|020||Fe (~40%)||20||n/p||n/p||<0.07||n/p||3.5||<2.0||n/p||35||<0.045||<1.0||<0.035||2.5||about 1|
|DS||Fe (~40%)||18||n/p||0.2||0.1||nil||0.5||0.8-1.5||18 (Co+Ni 38)||18 (Co+Ni 38)||n/p||2.3||0.03|
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