the y2 — phase and of the B; — phase are observed, see Fig. 5, upper diagram. The positions of 
the vy, — lines are marked by vertical lines ( JCPDS — Datei ). Unmarked lines correspond to 
the ordered orthorhombic 3 ~ phase. 
a ANA TI STR ES BE ade Yas oe a. TA i mw 
RRR RE ARIE STR BE SVE, I 
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Wty As Fo CATE es Lag A Tig Pa ne. FN LSE CAS 
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ie Eg “hee 100 um Lh om pe 
Wh : kr re xt - In Fig. 4 
‚8 1 : Ct Res, ar 8% 3 whe me 
hp CE add RE » cL a oN 
. 1 apn 
Figure 3: Microstructure of the sand cast alloy, Figure 4: Microstructure of the spray formed alloy, he 2 = 
seams and rosette — like particles of the y, — phase seams and rosette — like particles of the smaller co! 
in the B; — matrix, finedisperse k - precipitations, v2 — phase in the B; — matrix, finedisperse dr 
some pores K - precipitations diffraction 
phase are ( 
By hot pre 
2-Theta - Scale UNJUVERSITAET ROSTOCK 24-Jul-2002 14:15 Cr 
A oT produced 
However 1 
; formed sta 
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5 formed sp 
Melt > b 
nN 
8 
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25 38 35 48 45 sa S5 68 55 79 75 80 85 Sa 95 18d 
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s Rome 
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25 38 35 48 45 se Ss 68 65 78 75 a8 85 98 35 198 re 
C:\USERDATA\KERAZ6B .RAW Unnamed - B (CT: 0O.8s, 55:0.858dg., WL: 1.54B6A0) Vale 
24-9283 C Cu9Alq Aluminum Copper (WL: 1.5486A0) Kl 
C:\USERDATANSS2.RAW Unnamed - B (CT: 1.8s, S5:0.858dg., WL: 1.5486A0) 
24-8283 C Cu9Alq Aluminum Copper (WL: 1.5486Aa) 
Figure 5: X — ray diffraction pattern of the investigated alloys, upper diagram: cast alloy, lower diagram: spray 
formed alloy, the positions of the y, — lines are marked by vertical lines 
47