球状炭化物を晶出させた高Ｖ‐Ｃｒ‐Ｎｉ鋳鉄の耐食性と耐摩耗性

概要

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The purpose of the present work has been to develope a high corrosion and wear resistant cast iron. This has been realized as a stainless spheroidal carbide cast iron. The typical chemical composition of the new cast iron, in which spheroidal carbides distribute in γ matrix, is Fe-3 % C-10 % V-18 % Cr-8 % Ni-1 % Mn. Corrosion tests, carried out in 1NHCl, HNO3, H2SO4 at room temperature and in boiling 7N-H2 SO4, show that this cast iron has an excellent corrosion resistance which stands comparison with that of stainless steel. Further, wear resistance tests show that this cast iron has excellent wear resistance. These new cast irons have already been used practically in several cases where high corrosion and wear resistances are simultaneously needed, and the results have been confirmed to be highly satisfactory.
Japan Foundry Engineering Societyの論文