The table in Exercise E6.2 lists properties of copper-nickel alloys from pure copper to pure nickel. Plot trajectory of fracture toughness against yield strength.

Data From Exercise E6.2

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E6.2. Making property trajectories (1). The table lists properties of copper-nickel alloys from pure copper to pure nickel. Plot a trajectory of thermal conductivity against copper content. How do you explain the shape of the trajectory? Copper-Nickel Alloy Yield Strength (MPa) Fracture Toughness (MPa-m/) T-conductivity (W/mK) 100% copper 49.7 102 381 95% copper 85.9 85.8 22.8 90% copper 99.3 76.8 20.2 80% copper 115 67.5 22.4 75% copper 132 67.9 25.4 70% copper 145 70.4 31.4 45% copper 187 72.9 47.3 32% copper 199 79.4 66.1 0% copper 88.7