| 1. | Strontium at levels of 0.01 % refines grain structure of aluminium.
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| 2. | When the steel is heated again, the tiny grain structures merge.
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| 3. | Finally, lower temperatures can be used, which improves the grain structure.
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| 4. | The resulting grain structure is circumferential, which gives better mechanical properties.
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| 5. | Grain structure is uniform, however at times it can be interlocked.
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| 6. | The times required depend on the grain structure of the alloy.
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| 7. | Vegetable ivory is naturally white with a fine marbled grain structure.
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| 8. | Recently high-temperature superplastic behaviour has also been observed in iron aluminides with coarse grain structures.
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| 9. | Metals with fine grain structure before melting provide superior wetting to metals with large grains.
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| 10. | A coarse grain structure impregnated with oil, however, may be the most desirable for wear resistance.
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