6 The drive force for diffusion is 7 Fick\'s first law can be used to solve the

Question

6 The drive force for diffusion is 7 Fick's first law can be used to solve the non-steady state diffusion. T F 8 The higher the ASTM grain size number, the finer the gran is. T 2pts) (2pts) (2pts) s and tensile strength have linear relationships for (a) low carbon steels, (b) polymers, () copper-zinc alloys, and (d) ceramic materials. Circle the correct answers) here. (4pts) 10 During the strain hardening of steels, the engineering stress and strain satisfy an exponential rel TF2pts) 11 More active slip systems in copper than in iron. T F--. (2pts) 12 The grain size of a polycrystalline metal can be measured by x-ray diffraction. TF 13 The finer the gran, the higher the tensile strength of the material is.T F(2pts) (2pts)

Explanation / Answer

6.ANS: the drive force for the diffusion is Chemical potential gradient

7.ANS:False

8.ANS:TRUE

9.ANS:a) low carbon steels

10.ANS:True

11.ANS:False

12.ANS:True

13.ANS;True

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