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Askmemetallurgy Official
Asked: 2020-06-18T15:50:53+05:30 In:

GATE MT 2018 Q10.

The c/a ratio of Zn (hcp) is 1.856. Slip at room temperature occurs most easily on which of the following slip systems in Zn:

Note: In hcp metals, the ideal c/a ratio is 1.633.

(A) {11̅00} 〈112̅0〉                                                    (B) {11̅00} 〈0002〉

(C) {0001} 〈112̅0〉                                                  (D) {101̅1̅} 〈112̅3〉

GATE MT 2018 Question Paper With SolutionGATE MT Physical metallurgyGATE MT Previous Year Questions With Solutionslip systems
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    2 Answers

    1. Best Answer
      Platinum GATE 2021 QUALIFIED

      The c/a ratio is greater than the ideal ratio of 1.633 hence, the slip should occur on the basal plane that is {0001} Option C 

      The c/a ratio is greater than the ideal ratio of 1.633 hence, the slip should occur on the basal plane that is {0001}

      Option C 

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    2. Platinum Metallurgical and Materials Engineering student

      Option C because slip occur at basal plane in hcp

      Option C because slip occur at basal plane in hcp

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      • 1
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