Prakt. Met. Sonderband 38 (2006) 391
‚ It is clear 80 250
70
200
| samples 7% 3
a 5 3 150
E 40 @ Sample 8 E @ Sample 8
z 0 @ Sample 13 2 100 @ Sample 13
| | _V2A | 0
a 35 | CRrR60 CR60 CR40 wo Not C: CR80 CR60 CR40 CRzu Nu 0
AL | |
| 1
5 r ; 350 100
= “ 90
{oy L 300 a
2 , 8 250 3 7:
7 £ 200 @ Sample 8 £ % @ Sample 8
ZU = = 50
| = > 150 m Sample 13 2 4 @ Sample 13
ap £7 5 100 5 30
| 7 J Ht ol 20
— 50
Egy c
25 Choe Un. CRa . Ne CRU CRoU CRaU Call Ne
20 )
35
fv 14C
60 120
8 50 8 100
£ 40 @ Sample 8 2 80 @ Sample 8
5 30 w Sample 13 2 60 ®@ Sample 13
2 20 s 40
U 0
CR80 CR60 CR40 CR20 Not CR CR8aC CR60 CR40 CR20 Not CR
(f)
V2A | N
18 | ;
15 20 a = Aquaregia
14 :. | a
10 2 m Sample 8 c = Glyceregia
18 2 @ Sample 13 d = Kalling
15 i e = Hydrochloric Acid
14 f = Nitric Acid
10 CR80 CR60 CR40 CR20 Not CF g = V2A
to)
} Fig. 1: Etching time vs. Percentage of cold rolled reduction for various etchants.
ions
Typical optical microstructure revealed by various etching solutions and techniques
— presented in figure 2. Worth mentioning two etching techniques, i.e. soaking and
J | electrolytic, were used for etching each of the sample and the pictures presented here are
20V typical of the best results obtained
20V
(a tb
(c) (d)
(e)
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