Two iron samples with different grain sizes are tensile tested. The grain size of sample A...

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Two iron samples with different grain sizes are tensile tested. The grain size of sample A is 0.37 um and the grain size of sample B is 1.10 μm. (a) Sketch stress-strain curves of both samples on the same graph. (b) Compare the yield strength, tensile strength, ductility and elastic modulus. (c) Explain the effect of grain size on tensile properties. Two iron samples with different grain sizes are tensile tested. The grain size of sample A is 0.37 um and the grain size of sample B is 1.10 μm. (a) Sketch stress-strain curves of both samples on the same graph. (b) Compare the yield strength, tensile strength, ductility and elastic modulus. (c) Explain the effect of grain size on tensile properties.