| 摘要 |
<p>An iron-based high-silicon alloy contains (in weight percent) 2.6-3.5% carbon, 3.7-4.9% silicon, 0.45-1.0% niobium, up to 0.6% manganese, up to 0.02% sulfur, up to 0.02% phosphorus, up to 0.5% nickel, up to 1.0% chromium, up to 0.1 % magnesium, and the balance iron and up to 0.2% of other elements . Figure 3 illustrates one example of a microstructure of an alloy according to the present invention which shows largely ferritic grain structure (20) and spheroidal graphites (22). The alloy is heat resistant and suitable for use in producing, among other things, turbochargers, center housings, back plates, exhaust manifolds, and integrated turbo manifolds that are used in the automotive and truck manufacturing industries.</p> |
