Precipitation Behaviours of Austenitic Steel of Manganese-Chromium Type Containing Vanadium
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概要
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The precipitation process of V_4C_3 and the structural change in Mn-Cr-V type austenitic steel of the chemical composition of 0.44% C, 17.4% Mn, 12.15% Cr and 2.37% V have been studied by measuring the changes in dilatation and hardness and by transmission electron microscopy. The results obtained are as follows : (1) The precipitated carbide that brings about a remarkable hardening and a change in dilatation is spherical V_4C_3 only. (2) The strain caused by the coherency between V_4C_3 and the matrix is released when the particle size grows up to 150〜160 A, resulting in the contraction and the decrease in hardness. This suggests that the coherency between V_4C_3 and the matrix plays an important role in the strengthening of austenitic steel in Mn-C-V system.
- 東北大学の論文
著者
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IMAI Yunoshin
The Research Institute for Iron, Steel and Other Metals
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Imai Yunoshin
The Research Institute For Iron Steel And Other Metals
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NAMEKATA Jirou
The Research Institute for Iron, Steel and Other Metals
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Namekata Jirou
The Research Institute For Iron Steel And Other Metals
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