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∙ 11y agothe drawbacks are that they rust in rain and expand and shrink in heat, and the benefits are that they are fireproof (more so then wood) and they are strong and can be used for many purposes.
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∙ 11y agometals
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Advantages of ferrous metals include their high strength, durability, and magnetic properties. However, disadvantages may include susceptibility to corrosion, heavier weight compared to non-ferrous metals, and limited formability.
It covers and protects woods and metals from the elements. It also adds colour.
Advantages: Low cost, good collapsibility, can be reused, and can produce castings with good surface finish. Disadvantages: Limited to casting low-melting point metals, slower cooling rates compared to other mold materials, may emit toxic fumes during casting.
Advantages of sulphamic acid as a descaler include its effectiveness in removing scales, its compatibility with various materials like metals, concrete, and ceramics, and its biodegradability. Disadvantages may include its potential to irritate skin and eyes if not handled properly, and its limited effectiveness against certain types of tough scale deposits.
Advantages of ferrous metals include high strength, durability, and the ability to be easily magnetized. Disadvantages can include susceptibility to corrosion and rust, as well as heaviness compared to non-ferrous metals.
The direct arc melting method offers high purity of materials, allows for precise control of the composition, and enables the production of custom alloys. Additionally, it has the capability of melting a wide range of materials, including refractory metals and reactive elements.
Disadvantages- may be more expensive and not as strong as ferrous metals.Advantages- may be a better electrical conductor, not affected by magnetism, may be corrosion resistant.
Advantages Can be used to weld almost any metal as well as dissimilar metals. Gives very good quality welds (structurally and appearance) No slag involved Disadvantages Slow requires high skill to master
The main substances used as structural materials for building solid body parts are metals and alloys. These materials offer high strength and durability, making them suitable for various applications in construction, manufacturing, and engineering. Other structural materials include ceramics, polymers, and composites, each with their own unique properties and applications.
Materials can be categorized based on their composition (metals, polymers, ceramics, composites), properties (mechanical, thermal, electrical), and intended use (structural, functional, decorative). Additionally, materials can be classified as natural or synthetic, based on their origin.