ASTM GRAIN SIZE ı Meas 
Low Alloy Steel | Austenitc Stainless Steel Fase t 
Field Before After % Before After % U 
treatment treatment Difference treatment treatment | Difference ne 
1, 671 7.96 1863 , 921 6.75 CY 
2 656 | 833 | 26.98 8.55 5.89 4516 et 
3 | 6.07 23 38.22 | 9.91 7.05 40.57 
4 1: 678 8.12 19.06 | 922 | 6.52 4141 
5 | 7.29 8.66 1879 932 | 6.02 54.82 { Eiglet 
6 891 8.56 2388 = 833 | 5.56 49.82 
7 699 | 91 3019 | 901 , 607 | 4843 Der Mag 
, 8 6.57 8.23 25.27 9.88 E38 | 3479 gS 
9 6.07 841 , 3855 9.02 651 | 3856 Bedeutun 
10 6.41 838 + 3073 | 965 _, 684 41.08 geseen 
Ale 602 | 855 | 4203 859 , 592 45.10 14. 
12 6.07 ~~ 836 | 3773 8.45 6.12 38.07 
BT 6.49 8.78 i 35.29 8.95 6.47 38.33 {m Rahm 
34 | 601 838 | 3943 | 84S 581 | 4544  nemet 
15 6.05 8.49 40.33 922 6.38 | 4451 untersuch 
16 605 | 831 37.36 9.11 - 689 | 3222 = mi 
17 597 | 8.64 44.72 8.87 6.05 46.61 
18 8.27 43.58 5.73 43.28 2 Grund 
19 833 | 2975 35.95 os 
20 6.16 36.20 6.15 35.45 Dani 
|_Average 637 | 843 3234 | 891 6.30 41.43 Sie 
Table 1 — Results of grain size measurements for the low alloy steel and austenitic stainless steel 
samples, before and after image treatment 
Cod 
die Ober 
REFERENCES: Achse 
(1) A.C.Vidal et al., The Manufacture of Brinell Hardness Standard Blocks in Brazil, Proceedings of 
International Symposium on Advances in Hardness Measurement- HARDMEKO 98 , China, 1998, p. 
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(2) M.V. Oliveira et al. , Characterization of a Stainless Steel Surgical Implant, Proceedings of the 
XVII Congress of the Brazilian Society for Microscopy and Microanalysis, Acta Microscopia, Vol. 8, 
Sup. A, October 1999, pg. 167-168 - Santos - SP BRASIL 
(3) K.R Castleman, Digital Image Processing, Prentice Hall , 1979 
(4) J.C. Russ, The Image processing Handbook , Third Edition, CRC Press, 1988 
(5) Barbosa, M.A, Imaging Techniques in Biomaterials: Digital Image Processing applied to 
Orthopaedic Dental Implants, Elsevier, 1994 
Bid 1: py 
senkrecht 
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