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Effect of Undercooling on the Microstructure of Ni-35 At. Pct Mo (Eutectic) and Ni-38 At. Pct Mo (Hypereutectic) Alloys by S . N . Tewari Pages 534 a n d 539: These are the correct figures 10 and 13:

80--

70

I

--

36 K

(DTA)

I I

|

I I

x0~

(EML~

80~

i /

Ir DENDRITE

I:

..,.~ Z

T PARTICLES

lO

60

l

! 'v"

,I

1

I

50 0

10 DISTANCE, t.lm

...Z

60

G-HOST CORE7

50, " " - OUTER / / REGIONj

413

0

I

20

I

I

40 60 DISTANCE, l~l

I

80

I

100

(a) (b) Fig. 10--Nickel concentrationprofile across y and "ghost/3" dendrites observed in the eutectic alloy. (a) Across y dendrites (AT = 36 K, DTA, and AT = 107 K EML). (b) Across "ghost/3 dendrite" and y dendrite (AT = 114 K, DTA).

l I 6 4 - - V O L U M E 18A, JUNE 1987

METALLURGICAL TRANSACTIONS A