ステンレス球状炭化物鋳鉄のバナジウム系炭化物の形状に及ぼす溶解条件の影響 [in Japanese] Influence of Melting Conditions on Morphology of Vanadium-Carbide in Stainless Spheroidal Carbide Cast Iron [in Japanese]
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In the present work, attempts were made to develop a new type of cast iron, stainless spheroidal carbide cast iron whose chemical composition is x%C-20%Cr-10%Ni-y%V-Fe. This cast iron exhibits excellent characteristics in corrosion and abrasive resistance. In this cast iron, the morphology of vanadium-carbide was observed to change depending on melting conditions. At relatively higher temperature such as 2023K spheroidal carbides crystallized, while flower-like carbides crystallized at relatively lower temperature such as 1723K. Spheroidal carbide particles have a tendency to coagulate with each other when the temperature decreases and appear flower-like. These flower-like particles were found to break down to spheroidal particles again when the temperature was elevated. Thus we can conclude that the morphology of vanadium-carbide is not affected by the thermal history, but depends only on the pouring temperature.
- THE JOURNAL OF THE JAPAN FOUNDRYMEN'S SOCIETY
THE JOURNAL OF THE JAPAN FOUNDRYMEN'S SOCIETY 79(3), 133-138, 2007-03-25
Japan Foundry Engineering Society