Three alloys were found to have the hall-petch parameters shown in the following table. alloy σ0 (mpa) ky (mpa mm1/2) a 90 9.2 b 75 6.1 c 170 2.3 which alloy has the highest yield strength for a grain size of 20 microns? which alloy will benefit the most from grain refinement? explain your answer.

hi

explanation:

unlike the threaded fasteners which are used to clamp the machine members, power screws are used to transmit power. common applications of power screws are: screw jacks: to lift weight. lead screw of lathe: for axial movement of tool and its precise positioning.

answer:

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answer:

a

explanation: