[Forward] About the hardness, toughness, and strength of materials: animated videos to help you choose the right material
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This post was last edited by Thank goodness you're here on 2016-3-1 09:16. When selecting appropriate materials for a project or product, making sensible choices is very important; it’s not just a matter of choosing one material over another, but also of determining which properties of the materials should be taken into consideration. If you don’t have a better reference, you might consider using the following characteristics to define it. 1. The material must be strong enough to withstand the stresses present in its application environment, without bending, breaking, cracking, or deforming.
2. Elasticity: The ability of a material to absorb forces, bend in different directions, and return to its original state.
3. Forming properties: Whether it is easy to shape into a permanent form. Persimmons are soft and can be molded at will, but once shaped that’s it. Another extreme example is that diamonds have such high hardness that they are not suitable for machining either. Diamonds can be used to process other things.
4. Ductility: The ability to deform under stress in the length direction. The rubber band has good elasticity. In terms of materials, thermoplastic elastomers generally possess good ductility.
5. Tensile strength: The ability to resist deformation before breaking or fracturing.
6. Ductility: The ability of a material to change shape in various directions before cracks appear; it tests the material’s capacity for further plastic deformation.
7. Ductility: The material’s ability to resist impacts; it will not break or crack upon sudden impact.
8. Hardness: Materials that are harder are generally more resistant to scratches, more durable, and better able to withstand tearing and indentation.
9. Electrical conductivity – There’s no need for the editor to say much about this. Under normal circumstances, materials with good electrical conductivity also have good thermal conductivity.