Answer:
A)
i) Grain size reduction: Grain size reduction causes the increase in the number of grain per unit volume also the strength of the material will also increase
ii) Solid solution strengthening : The compressive or tensile strength caused by solid solution strengthening causes increase in the strength at the sites this is because an extra stress is needed for deformation to occur
iii) Strain hardening : The strain hardening of a material will lead to a plastic deformation which will be caused by movement of dislocation which in turn will cause piling of dislocation at boundaries
B) Two techniques used to strength metal alloys
i) Heat treatment : the application of heat on metal alloys reduces stress concentration thereby leading to increase in the strength of the alloy
ii) surface finishing of component : Nicely finished surfaces of Metal alloys increase the strength of the alloys
Explanation:
A)
i) Grain size reduction: Grain size reduction causes the increase in the number of grain per unit volume also the strength of the material will also increase
ii) Solid solution strengthening : The compressive or tensile strength caused by solid solution strengthening causes increase in the strength at the sites this is because an extra stress is needed for deformation to occur
iii) Strain hardening : The strain hardening of a material will lead to a plastic deformation which will be caused by movement of dislocation which in turn will cause piling of dislocation at boundaries
B) Two techniques used to strength metal alloys
i) Heat treatment : the application of heat on metal alloys reduces stress concentration thereby leading to increase in the strength of the alloy
ii) surface finishing of component : Nicely finished surfaces of Metal alloys increase the strength of the alloys
