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Three Typical Alloys with Ni&Cr Additions
Abstract
Nichrome is the nickel-chrome alloys, namely it is an alloy that include the elements of nickel and chrome. Usually nichrome is mainly made of nickel and chrome, and may have some other elements like iron with a tiny percentage, but a lot of iron-based alloy like stainless steel also have the component of nickel and chrome, which means they can also be defined as nichrome. Nichrome have outstanding physical and chemical properties, which offer this kind of material a wide usage range. This webpage is based on three types of nichrome, 316LN, Inconel690 and Incoloy800 to show some properties and common applications of nichrome. The development and history of nichrome, especially the mentioned three types, is discussed in this webpage. The process routes and manufacture are also displayed following. Reflection and acknowledgement are placed in the last two part of this webpage in order to show some details of the processes to establish this webpage.
Introduction
Nichrome (NiCr, nickel-chrome alloys) refers to any alloys of nickel, chromium and usually other elements like iron [1]. Nichrome is usually used to produce dental porcelain or resistance wire, while there is a specific usage of nichrome: as structure material in a nuclear reactor. Nichrome is the oldest heat-resistance alloy which firstly patented in 1906 by Albert Marsh, commonly 80wt% Ni and 20wt% Cr [1]. Nichrome has a low manufacture cost and outstanding performance in a very high temperature. Nowadays nichrome has lots of different components to reach different properties, like series Inconel or Incoloy. This webpage will show you 316LN, Inconel690 and Incoloy800, three types of alloys includes iron, nickel and chromium, that are used in a reactor in nuclear power station.