Alloy Name T SG S y MPa SE GPa SKIC MPa(m)0 5 Al 7075 T6 2 81 179 25 5...

Alloy Name T SG S?y MPa SE GPa SKICÂ Â Â MPa(m)0.5 Al-7075 T6 2.81 179 25.5 9.25 4340 steel OQT 7.85 148 26.1 7.64 Mg-ZK61A T6 1.83 106 24.6 8.19 Ti-8Al-1Mo-1V STA 4.37 130 14.6 18.76 Problem 9 In a design where weight is a critical factor, such...

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Question

Mechanical Engineering

Alloy Name
T
SG
S?y MPa
SE GPa
SKICÂ Â Â MPa(m)0.5
Al-7075
T6
2.81
179
25.5
9.25
4340 steel
OQT
7.85
148
26.1
7.64
Mg-ZK61A
T6
1.83
106
24.6
8.19
Ti-8Al-1Mo-1V
STA
4.37
130
14.6
18.76
Problem 9
In a design where weight is a critical factor, such as in aspace shuttle frame, and specific yield strength, specific elasticmodulus, and specific fracture toughness are of equal importance,using the above table, Calculate to show which of the materialsInconel Al-7075, 4340 steel, Mg-ZK61A, or Ti-8Al-1Mo-1V in theabove table, is the best material choice?

Answer & Explanation Solved by verified expert

4.5 Ratings (833 Votes)

As mentioned in the question that weight is a critical factor and other properties are having equal importance Hence the material having the least specific gravity See Answer

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Alloy Name	T	SG	*S?y* MPa	SE GPa	*SKICÂ Â Â* MPa(m)0.5
Al-7075	T6	2.81	179	25.5	9.25
4340 steel	OQT	7.85	148	26.1	7.64
Mg-ZK61A	T6	1.83	106	24.6	8.19
Ti-8Al-1Mo-1V	STA	4.37	130	14.6	18.76