Welcome to visit the official website of jiangsu brother alloy Co., Ltd.!

搜索
Search

Hot search: Alloy Filament, Flat Filament, Flat Strip

banner

NEWS

Check category

RECOMMENDED

An alloy made of nickel and other elements is called nickel alloy. Nickel has good mechanical, physical and chemical properties. Adding appropriate elements can improve its oxidation resistance, corrosion resistance, high temperature strength and some physical properties. Nickel alloys can be used as materials for electronic tubes, precision alloys (magnetic alloys, precision resistance alloys, electrothermal alloys, etc.), nickel base superalloys, nickel base corrosion resistant alloys and shape memory alloys. Nickel alloys are widely used in energy development, chemical industry, electronics, navigation, aviation and aerospace.
Nickel base alloy is a kind of alloy with high strength, oxidation and corrosion resistance at 650 ~ 1000 ℃. According to the main properties, it is subdivided into nickel base heat resistant alloy, nickel base alloy, nickel base alloy, nickel base precision alloy and nickel base shape memory alloy. According to the different matrix, superalloys are divided into iron-based superalloys, nickel based superalloys and cobalt based superalloys. Nickel base superalloy is called nickel base alloy for short.
Nickel alloy is widely used in desulfurization industry. The main reason is that it has strong acid resistance and strong corrosion resistance to halogen ions. The corrosion resistance of various nickel alloy materials varies with the content of alloy elements.
Since World War II, "superalloy" has been used to describe a group of alloys developed in turbochargers and aircraft turbine engines, which need performance at high temperatures. The application of superalloys has been extended to many other fields, including aircraft and land-based gas turbines, rocket engines, chemical and petroleum plants. They are suitable for these demanding applications. Alloys are based on VIIIB group elements and are usually composed of various combinations of Fe, Ni, CO and Cr and small amounts of W, Mo, Ta, Ti and al. The three main alloys are nickel, iron and cobalt based alloys. Next, xincoral Xiaobian will share with you the development of nickel base alloy.
Basic information of construction project name, site selection and route selection, construction content, etc
Annex 1: public comments on environmental impact assessment of construction projects
current location:
Homepage
/
/
Performance comparison between pure nickel and copper nickel alloy

Performance comparison between pure nickel and copper nickel alloy

Views:
img

Nickel alloy is widely used in desulfurization industry. The main reason is that it has strong acid resistance and strong corrosion resistance to halogen ions. The corrosion resistance of various nickel alloy materials varies with the content of alloy elements.

The passivation protection of nickel copper alloy is improved due to the addition of a small amount of copper. The nickel content in the alloy is very high, and its corrosion resistance is equivalent to that of pure nickel.

This kind of alloy can be widely used in high-speed flow and erosion prone parts, such as screw shaft, propeller, impeller pump blade, condensate contact, and sulfuric acid solution.

The alloy has strong corrosion resistance to different concentrations at various temperatures, and its corrosion rate is 0.05 mm / A or less in vacuum. At 100 ℃, it shows strong corrosion resistance in 30% solution. Stress corrosion cracks can be observed in ventilated high-temperature solution, which can be solved by pumping out medium gas or stress relief annealing of equipment.

There is only slight corrosion in neutral and alkaline solutions (such as chlorate, carbonate, sulfate, salt and acetate) at high concentration and boiling point. Therefore, this alloy can be used to make containers for producing crystals from saturated brine. They are also widely used in steam equipment and crystallization vessels. But the salts of oxidizing acids and some basic salts are harmful to them

Strong corrosion, such as hypochlorite.

For NaOH and KOH solutions, the alloy has strong corrosion resistance similar to pure nickel. At 130 ℃, the corrosion rate is only 0.05mm/a or lower in 75% alkali solution; In 75% NaOH or anhydrous NaOH, the corrosion rate is higher than that of pure nickel, and stress corrosion cracks can be seen in molten NaOH for parts subject to severe mechanical extrusion. Therefore, for the parts used under these working conditions, the material can be stress relieved annealed or pure nickel can be used.

Copyright © Jiangsu Brother Alloy Co., Ltd. All Rights Reserved  苏ICP备11050478号-2  powered by:www.300.cn changzhou