What are metallic materials?

Question 1: What do metallic materials include and what Usually metallic materials are divided into two categories: ferrous metals and non-ferrous metals.

1 ferrous metals

With iron, manganese, chromium, or to them mainly formed with metallic properties of the material, known as ferrous metals. Such as carbon steel, alloy steel, cast iron and so on.

2 Non-ferrous Metals

Metallic materials other than ferrous metals are known as non-ferrous metals, such as copper, aluminum, magnesium, and their alloys.

Question 2: What are included in the metal materials Metal materials refers to the metal elements or metal elements mainly composed of materials with metal characteristics of the collective name. Including pure metals, alloys, metal materials intermetallic compounds and special metal materials. (Note: metal oxides (such as aluminum oxide) does not belong to the metal materials)

For details, see Baidu Encyclopedia: baike.baidu/subview/403617/15379195

Question 3: What are the common metal materials in life 1, cast iron - mobility

Question 3: What are the common metal materials in life? p>

Sewer covers, as an inconspicuous part of our daily environment, few people will pay attention to them. The main reason why cast iron has such a large and wide range of uses is because of its excellent fluidity and its ease of pouring into a variety of complex forms. Cast iron is actually the name given to a mixture of a combination of elements which include carbon, silicon and iron. The higher the content of carbon in it, the better its flow characteristics during pouring. Carbon appears here in the form of both graphite and iron carbide.

Material properties: excellent flow properties, low cost, good wear resistance, low solidification shrinkage, very brittle, high compression strength, good machinability.

Typical uses: Cast iron has been used for centuries in construction, bridges, engineering components, homes, and kitchen appliances.

2. Stainless steel - a rust-free revolution

Stainless steel is an alloy made by incorporating chromium, nickel, and some other metal elements into steel. Its rust-free properties are derived from the chromium component of the alloy, chromium in the surface of the alloy to form a layer of firm, self-repairing chromium oxide film, the film is invisible to our naked eye. The ratio of stainless steel to nickel that we usually refer to is generally 18:10.

Material properties: hygienic, corrosion-resistant, fine surface finishes possible, high rigidity, can be molded through a variety of machining processes, and is difficult to cold work.

Typical uses: austenitic stainless steel is mainly used in household goods, industrial piping and building structures; martensitic stainless steel is mainly used to make knives and turbine blades; ferritic stainless steel is corrosion-resistant and is mainly used in durable washing machines and boiler parts; composite stainless steel has stronger corrosion-resistant properties, and is often used in aggressive environments.

3, zinc - a lifetime of 730 pounds

Zinc, shiny silver and slightly blue-gray, it is the third most widely used non-ferrous metals after aluminum and copper. A statistic from the U.S. Bureau of Mines shows that an average person will consume a total of 331 kilograms of zinc in his or her lifetime***. Zinc has a very low melting point, so it is also a very ideal casting material. Zinc castings are very common in our daily lives: the material below the surface layer of door handles, faucets, electronic components, etc. Zinc is extremely corrosion-resistant, a property that gives it another, most basic, function as a surface-plating material for steel. Metal processing microsoft, the content is good, worth attention. In addition to these functions, zinc is also a brass alloy material synthesized with copper. Its anti-corrosive properties are not just used for steel surface plating - it also helps to strengthen our human immune system.

Material properties: health care, corrosion protection, excellent castability, excellent corrosion protection, high strength, high hardness, inexpensive raw material, low melting point, creep resistance, easy to form alloys with other metals, health care properties, fragile at room temperature, ductile around 100 degrees Celsius.

Typical use: electronic components. Zinc is one of the alloys used to form bronze. Zinc is also characterized by cleanliness and hygiene as well as resistance to corrosion. Zinc is also used in roofing materials, photo engraving plates, cell phone antennas, and shutter mechanisms in cameras.

4, now the material - aluminum (AL)

Compared to gold, which has been used for 9,000 years, aluminum, a slightly bluish white metal, can only be regarded as the baby of the metal material. Aluminum was introduced and named in the early 18th century. Unlike other metallic elements, aluminum does not exist in nature as a direct metal element, but is extracted from bauxite containing 50% alumina (also known as bauxite). Aluminum in this mineral form is also one of the most abundant metallic elements on our planet.

When aluminum first appeared, it was not immediately used in people's lives. Later, a number of new products were developed for its unique features and characteristics, and this high-tech material gradually gained a wider and wider market. Although the history of aluminum applications is relatively short, the production of aluminum products on the market now far exceeds the sum of other non-ferrous metal products.

Material properties: flexible and malleable, easy to alloy, high strength-to-weight ratio, excellent corrosion resistance, easy to conduct heat and electricity, recyclable.

Typical uses: transportation frames, aircraft components, kitchen appliances, packaging, and furniture. Aluminum is also often used to reinforce large architectural structures, such as the statue of Eros in London's Piccadilly Circus and the top of the Chrysler Motor Building in New York, which has been reinforced with aluminum.

5, magnesium alloy - ultra-thin aesthetic design

Magnesium is an extremely important non-ferrous metal, it is lighter than aluminum, able to ...... >>

Question 4: What are the metal specialties? Metals majors are:

Metal Materials Engineering: metal materials engineering majors are basic disciplines in the field of materials science and engineering, according to the Ministry of Education's latest professional directory, metal materials covering metallurgy, non-ferrous metals, composite materials, powder metallurgy, materials heat treatment, materials corrosion and protection and surface and other directions.

Metallurgical engineering: Metallurgical engineering is the study of the extraction of metals and their compounds from resources such as ores, and made of materials with good processing and use of the performance of the field of engineering technology.

Welding Technology and Engineering: Welding Technology and Engineering is a set of materials science, engineering mechanics, automatic control technology cross-cutting disciplines, teaching to cultivate the comprehensive use of knowledge of multi-study booking as the basis for the basic training of engineers.

Metal Mineral Processing Engineering: is the study of mineral separation of an applied technical discipline. The purpose of the discipline is to separate useful minerals and veinstone (useless) minerals. For example: iron, copper, lead, zinc ores containing quartz and other vein minerals, through re-election, magnetic separation and flotation methods, the lower grade of the original ore enrichment for man-made rich ores, for the next smelting work (smelting process belongs to the metallurgical engineering specialization) work to prepare.

Mechanical engineering is an engineering discipline that involves the use of the laws of physics to analyze, design, manufacture, and maintain mechanical systems. Mechanical engineering is based on the theory of natural and technical sciences, combined with technical experience in production practice, research and solve all theoretical and practical problems in the development, design, manufacture, installation, operation and maintenance of all kinds of machinery in the application of the discipline. Mechanical engineering is the first level of engineering graduate education, engineering graduate education a field.

Question 5: What are the wear-resistant metal materials Wear-resistant metal materials have the following categories:

1, chromium carbide wear-resistant metal materials, such as: Beijing Naimo Technology Company produces chromium carbide wear-resistant steel plate.

2, high manganese steel wear-resistant materials, for example: knmn19cr2.

3, tungsten carbide metal wear-resistant materials, for example: jp8000 spray tungsten carbide coating.

Question 6: What are the characteristics of metal materials? Ductility, electrical conductivity, thermal conductivity

Question 7: What is the general chemical composition of metal materials Specific analysis of specific cases, if a single metal element composition of the metal, the main chemical composition is the metal element, such as copper wire is the main chemical composition of the metal element copper; if it is an alloy, it is the synthesis of the alloy of two or more elements, such as alloy steel in the silicon-steel, the main chemical elements are Iron and silicon; in addition to other impurities, common such as carbon, sulfur, etc., such as carbon steel, the main chemical composition of iron, in addition to iron also contains carbon.