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- Strength vs. Hardness vs. Toughness - Engineering Stack Exchange
3 for this question: "What is the difference between strength, hardness and toughness in materials?" i have searched and have found these following definitions Strength refers to resistance to deformation, and also to a large elastic range
- materials - Durometer and Shore - Engineering Stack Exchange
Can someone help me understand durometer and shore hardness testing with relation to rubber hardness? My understanding is durometer measures hardness, shore is a different type of scale The image
- At what temperature do I risk altering the structure of steel?
If I have structural or tool steel that has been treated to some standard (ASTM, SAE, ISO -- e g , for hardness) but I don't know the details of the treatment, is there a "safe" temperature below which I can work the steel without affecting its performance characteristics?
- mechanical engineering - How do I determine what hardness to change the . . .
The steel tire could easily be any hardness you want It would be poor judgement to mess with the rolling element bearing hardness The heat-treatment has been developed over decades One factor is the residual compressive stresses developed on the surface ( by New Departure years ago) to significantly extend fatigue life
- How do you plot a relation between hardness and strain
How do I plot the relation between hardness of a material and compressive strain knowing the stress-strain curve and indentation size in Brinell's hardness test
- Difference between Stiffness (K) and Modulus of Elasticity (E)?
In Solid Mechanics, We can relate these K=AE L I am confused in these Both resist deformations when load is applied on it Is K constant like E is constant Another thing which is confusing is hardness which is the same (resists deformation on application of load)
- What is the significance of brittle materials and why do we use them?
We have studied that cast iron which is a brittle material is used in automobile cylinder block, head, housing flywheel etc If it is a brittle material then why it is used there? Another term that is confusing me is hardness How hardness is related to brittleness If a material is strong and hard, will it be brittle?
- Outline of Various Heat Treatment Processes - Engineering Stack Exchange
Your first statement is misleading or wrong; Hardness=brittleness At the same hardness there can be a wide range of "brittleness" = lack of toughness in steels The old Bessemer steels ( such as Titanic hull) were relatively soft with satisfactory ductility, and had very poor toughness Also, ferro-brittleness is a relatively unique property disability, of ferritic steels, not "metals" If
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