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Revision (Chapter 5a)
Based on Ge-Ag phase diagram below,
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L
αL+α
L + Ge
α + Ge
0olutions1(a)
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L
α
L+αL + Ge
α + Ge
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Revision (Chapter 5b)
3.g.
Based on 444diagram,determine the
struture !orm A43AC 04AG3 asmarternsite is1
eated to 6**C,7uenhed to 5**C, hold !or * s,and !urther7uenhed to roomtemperature. 7
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Revision (Chapter 5b)
(a) eated to 6**C Austenite
(b) 8uenhed to
5** C, hold !or *s
**+ Bainite
() 9urther7uenhed to roomtemperature
**+ Bainite
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Revision (Chapter 5b)
3.g. $
Based on 444diagram,determine the
struture !orm A43AC 04AG3 aspearlite is1
eated to 5*C,7uenhed to :* Chold !or * s, then7uenhed to * Chold !or #*s, and;nall 7uenhed to9
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Revision (Chapter 5b)
3.g.
Based on 444diagram,determine the
struture !orm A43AC 04AG3 aspearlite is1
eated to **C,7uenhed to $5* Chold !or ***s,and ;nall7uenhed to roomtemperature 11
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Revision (Chapter 5b)
(a)eated to **C
4he allo is lowerthan $C, thus noaustenite !orm. 4he
struture will remainsas pearlite.
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Revision (Chapter 5b)
3.g. %
Based on 444diagram,determine the
struture !orm A43AC 04AG3 aspearlite is1
eated to %*C,7uenhed to $5* Chold !or ***s,and ;nall7uenhed to roomtemperature 13
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Revision (Chapter 5b)
(a) eated to %*C Austenite
(b) 8uenhed to
$5* C, hold !or*** s
5*+ Bainite
5*+ Austenite
() 9urther7uenhed to roomtemperature
5*+ Bainite, 14Prepared by : Kow Kien Woh
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Revision (Chapter 5b)
3.g. 5
Based on 444diagram,determine the
struture !orm A43AC 04AG3 aspearlite is1
eated to %*C,7uenhed to $* Chold !or $* hours,and ;nall7uenhed to roomtemperature 15
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