Inconel



Inconel is a registered trademark of superalloys. Inconel alloys are typically used in high temperature applications. It is often referred to in English as "Inco" (or occasionally "Iconel").

Properties

Inconel alloys are creep effectively at elevated temperatures.

Machining

Inconel is a difficult metal to shape and machine using traditional techniques due to rapid stainless steel.

Joining

Welding inconel alloys is difficult due to cracking and microstructural segregation of alloying elements in the heat affected zone. However, several alloys have been designed to overcome these problems.[citation needed]

Uses

Inconel is often encountered in extreme environments. It is common in gas turbine blades, seals, and combustors, as well as turbocharger rotors and seals, high temperature fasteners, chemical processing and pressure vessels, heat exchanger tubing, firearm sound suppressor blast baffles, and Formula One exhaust systems.[1][2][3]

North American Aviation constructed the skin of the X-15 rocket plane out of an Inconel alloy known as "Inconel X".[4]

Inconel alloys

  • Inconel 600: Solid solution strengthened
  • Inconel 625: Acid resistant
  • Inconel 690: Low cobalt content for nuclear applications
  • Inconel 718: Gamma prime strengthened with good weldability

Notes

  1. ^ Power Generation, Special Metals Corporation.
  2. ^ Chemical Processing, Special Metals Corporation.
  3. ^ About Good Fabrications ("Performance inconel exhaust manufacturers for racecars").
  4. ^ Robert S. Houston, Richard P. Hallion, and Ronald G. Boston, EDITOR'S INTRODUCTION, "Transiting from Air to Space: The North American X-15", The Hypersonic Revolution: Case Studies in the History of Hypersonic Technology, Air Force History and Museums Program, 1998. NASA.gov.
 
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