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本文对用“金相剖面法”测定断裂韧性参数——“δ_c”的试验结果进行了概率统计分析。分析了测试过程中的误差来源及消除;试样和剖面的数量及保证试验结果的有效可靠性。
In this paper, using “Metallographic section method” to determine the fracture toughness parameters - “δ_c” test results were probabilistic statistical analysis. The sources of errors and their elimination during testing are analyzed. The number of samples and sections and the validity and reliability of test results are analyzed.