SJmetallurgist
Mechanical
- Apr 8, 2006
- 47
Hello
Please refer the attached photographs. These pictures belong to a cast product. I have observed some unevenness/modulation in the surface. this unevenness is evident on touching also. This is inherent of teh casting. Note that the casting is now in machined condition. I have also notice the same surface unevenness in Ni alloys (the second photograph belongs to Ni alloy material (inconel 625).
I would be glad if an expert could comment on the reason of such modulation occuring in the material. Some details given below.
Photograph 1:
a. Material CF8M.
b. Hardness - 240 BHN.
c. Casting.
d. Unevenness observed on face and RTJ groove wall.
Photograph 2 & 3:
a. Material Inconel 625.
b. Hardness - 260 BHN.
c. Casting.
d. Unevenness observed on face and RTJ groove wall.
Cheers!
Please refer the attached photographs. These pictures belong to a cast product. I have observed some unevenness/modulation in the surface. this unevenness is evident on touching also. This is inherent of teh casting. Note that the casting is now in machined condition. I have also notice the same surface unevenness in Ni alloys (the second photograph belongs to Ni alloy material (inconel 625).
I would be glad if an expert could comment on the reason of such modulation occuring in the material. Some details given below.
Photograph 1:
a. Material CF8M.
b. Hardness - 240 BHN.
c. Casting.
d. Unevenness observed on face and RTJ groove wall.
Photograph 2 & 3:
a. Material Inconel 625.
b. Hardness - 260 BHN.
c. Casting.
d. Unevenness observed on face and RTJ groove wall.
Cheers!