If strain to failure for a material is high then what would be the influence on its tensile strength and ductility?
Strain to failure gives the measure of how much the specimen is elongated to failure. By this it means that, it you have strain to failure of 3% measured in specimen of length 100 mm, the material will fail when it it elongated 3 mm, as experimented in tensile test. Therefore, for a material with higher strain to failure rate, the ductility is higher and tensile strength is lower.
Just a comment on Amod's answer: Tensile strength means the maximum mechanical stress (i.e. applied force divided by (initial) cross-section area of the specimen tested) during a tensile test, which is not directly correlated to the deformability or strain at failure or break since the tensile strength also is affected by the stiffness of the material. Therefore a ductile material might deform on a lower mechanical stress level than a stiffer one (this is the usual case), meaning its tensile strength is lower although its deformability is higher.
Sven and Siddiqui: Thank you for your comments! It was a lower tensile strength and higher ductility.
@Mr Hamed,
Thank you for your comments,But in the end, you mentioned that high strength and high ductility can be achieved by maintaining the strain hardening ability.So my question is how strain hardening ability plays a role in influencing the tensile strength and ductility?
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