Which of the steel alloys shown below would you choose to obtain Maximum strengt

Question

Which of the steel alloys shown below would you choose to obtain Maximum strength Maximum modulus of resilience Maximum modulus of toughness d Maximum stiffness Determine the yield strength-to-weight density ratios (specific strength) in units of kX-m/kg for AISI 1035 cold rolled steel. 6061 heat treated aluminum. Ti-X Al-6 V-2 Sn annealed titanium alloy, and ASTM No 40 gray cast iron Calculate the specific stiffnesses of beryllium copper, magnesium alloys, nickel alloys, ductile cast iron, bronze. steel alloys, and stainless steel. Rank them in increasing order of this property and discuss the engineering significance of these data For silicon bronze beryllium copper, and phosphor bronze. find and list their compositions and properties, and identify their primary uses

Explanation / Answer

>> NOTE:- As noting is mentioned about which question has to solve, i will do the first question including 4 parts ( as according to chegg guideline, i can do minimum 4 questions).

>> Solution 1

>> Part a).

>> After seeing in the diagram, as maximum stress is in alloy AISI 4142, so maximum strength will be of AISI 4142 alloy

>> Part (b)

>> As, Modulus of resilience is area under stress strain curve upto elastic limit

>> So, seeing in diagram, such area is maximum for AIS 4142 and thus, AISI 4142 has maximum modulus of resilience

>> Part (c)

>> As, Modulus of resilience is area under stress strain curve upto elastic limit

>> So, seeing in diagram, such area is maximum for AIS 4142 and thus, AISI 4142 has maximum modulus of resilience

>> As, Modulus of Toughness is area under stress strain curve upto fracture point

>> So, seeing in diagram, such area is maximum for AIS 1020 and thus, AISI 1020 has maximum modulus of resilience

>> Part (d).

>> As, AISI 1095 is having good ductility at high stress too as compared to other two

>> So, AISI 1095 has maximum stiffness.

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