Metal strength and fracture toughness are important mechanical properties for components exposed to fatigue conditions and components with stress concentrations. Optimization of the two properties through alloy selection and component fabrication must be considered when designing components for these situations.
For structural components, strength and fracture toughness are two important mechanical properties. Yield strength is the stress a metal can withstand before deforming. Tensile strength is the maximum stress a metal can support before starting to fracture. Fracture toughness is the energy required to cause a material that contains a crack to fracture.
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