Abrasion-Resistant White Cast Iron 19
-ASTM A532_A532M
- B. Effects of modifier and modification on the morphology of as cast carbides
The effects of modifier type and modification on austenitic characteristics and carbide perimeter are shown in Table 9 and table 10 respectively.
Table 9 Effects of metamorphism on austenite properties (same field of view)
| Sample number | Modifier type | The total area of austenite
A/ mm2 |
Austenite grain number / piece | Nominal diameter of austenite α/mm |
| 1 | SI | 01865294 E – 02 | 21 | 01202989 E – 01 |
| 2 | SI | 01952776 E – 02 | 25 | 01195220 E – 01 |
| 3 | S Ⅲ | 01970025 E – 02 | 23 | 01205366 E – 01 |
| 4 | S Ⅲ | 01763587 E – 02 | 26 | 01171373 E – 01 |
| 5 | Unmetamorphosed | 01107800 E – 01 | 14 | 01277488 E – 01 |
| 6 | Unmetamorphosed | 01107042 E – 01 | 11 | 01311946 E – 01 |
Table 10 Effect of modification on the perimeter of carbides
| Sample number | Modifier type | The total area of austenite
A/ mm2 |
Total carbide perimeter P / mm | Carbide shape factor
P∶A |
| 1 | SI | 01149494 E – 01 | 3151213 | 2341940 |
| 2 | SI | 01149494 E – 01 | 3158571 | 2051842 |
| 3 | S Ⅲ | 01142976 E – 01 | 2194304 | 2061564 |
| 4 | S Ⅲ | 01134971 E – 01 | 2195316 | 2181799 |
| 5 | Unmetamorphosed | 01142476 E – 01 | 2182331 | 1981160 |
| 6 | Unmetamorphosed | 01142476 E – 01 | 1179655 | 1261102 |
