既存鋼種とのアナロジイによる新規開発材料の高温材料特性評価手法

概要

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A new concept is proposed, which can reasonably estimate several material characteristic features of newly developed materials at elevated temperatures. The present approach only requires some relatively short-term basic material test data such as on tensile, low cycle fatigue and short-range creep rupture. This concept is essentially based on an analogy to usual materials. Several material behaviors of Mod.9Cr-1Mo (NT) at elevated temperatures can be adequately estimated by applying the present method to the equations of the characteristic features of 2(1/4)Cr-1Mo (NT), which macroscopically shows similar material behavior to those of Mod.9Cr-1Mo (NT). Furthermore, creep-fatigue lives of Mod.9Cr-1Mo (NT) are predicted based on the linear damage fraction rule with in a factor of 3 by using these estimated basic material characteristic equations.
社団法人日本機械学会の論文
1990-03-25