| 摘要 |
<p>A cast ferrous alloy which contains in addition to iron and inevitable impurities the following components wherein all percentages relate to the percentage content by weight: carbon 1.05 to 3.8 %, chromium 2.0 to less than 8.0 %, molybdenum 1.0 to 8.0 %, tungsten 1.05 to 8.0 %, niobium 1.0 to 10.0 %, and vanadium 1.0 to 10.0 % and which may further contain one or more of the following optional elements in the following percentage amounts by weight: manganese up to 1.5 %, silicon up to 1.5 %, cobalt up to 5.0 %, nickel up to 5.0 %, titanium up to 3.0 %, nitrogen up to 3.0 %, and cerium and/or other rare earth element(s) up to 0.2 % in total. Such alloys can be cast into rolling mill rolls with attractive mechanical properties and wherein unwanted carbide precipitation can be avoided.</p> |
