Empirical Formulae Estimating Strength of Weld Metal in case of YGW18 Considered with Cooling Time and Chemical Composition of Weld Metal
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概要
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It is well known that the strength of weld metal depends on cooling time and chemical composition (Ceq) of weld metal. This paper presents empirical formulae predicted strength of the weld metal using weld wire YGW18 specified in JIS Z 3312. Tensile tests of weld metal with plate thickness (16, 25, 32mm), heat input(15, 25, 35kJicm) and interpass temperature (150, 250, 350, 450) are carried out. These test results are put together with the results of the past tests, and the empirical formulae for the strength of the weld metal using YGW18 are derived by the same manner which is successful in case of weld wire YGW11. The formulae predict the strength of the test results with about the same accuracy in case of YGW11.
- 社団法人 日本鋼構造協会の論文
社団法人 日本鋼構造協会 | 論文
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