Complete knowledge of nickel alloy

Nickel alloy is an alloy composed of nickel based with the addition of other elements. Nickel has good mechanical, physical and chemical properties, and the addition of suitable elements can improve its oxidation resistance, corrosion resistance, high temperature strength and improve certain physical properties.

What is the difference between nickel-based alloys 800, 800H and 800HT?

The chemical composition of INCOLOY 800/800H/800HT is very similar, so they all have good resistance to corrosion by reduction, oxidation and nitriding media as well as resistance to corrosion by alternating redox media, and have high metallurgical stability in high temperature long-term applications. However, due to the different (Al + Ti) content of the three, resulting in the application of the three materials in different environments, specifically in.

What is the material of high temperature alloy

Nickel-based alloys are the most widely used high-temperature alloys, the highest high-temperature strength of a class of alloys. The main reason, one is that nickel-based alloys can dissolve more alloying elements, and can maintain good organizational stability; second is the formation of co-lattice ordered A3B-type intermetallic compound γ'[Ni3(Al, Ti)] phase as the strengthening phase, so that the alloy is effectively strengthened to obtain higher high-temperature strength than iron-based high-temperature alloys and cobalt-based high-temperature alloys; third is that nickel-based alloys containing chromium have better resistance than iron-based high-temperature alloy has better resistance to yang and gas corrosion.

Is nickel-based alloy a high-temperature alloy?

Nickel-based alloys are a class of alloys that have high strength and a certain resistance to corrosion at high temperatures from 650 to 1000℃. According to the main performance is subdivided into nickel-based heat-resistant alloys, nickel-based corrosion-resistant alloys, nickel-based wear-resistant alloys, nickel-based precision alloys and nickel-based shape memory alloys. High temperature alloys are divided into: iron-based high temperature alloys, nickel-based high temperature alloys and cobalt-based high temperature alloys according to the different substrates. Among them, nickel-based high-temperature alloys are referred to as nickel-based alloys.

Durability of metallic materials

① Uniform corrosion. The corrosion of the metal surface makes the section uniformly thin. Therefore, the commonly used annual average thickness loss value as an indicator of corrosion performance (corrosion rate). Steel in the atmosphere is generally uniform corrosion.