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针对盘件低倍检验试样面上发现的白点裂纹 ,低倍断口与力学性能检验结果正常。通过缓慢拉伸法及其断口的宏观、微观分析 ,确认低倍裂纹为白点裂纹。
Low-magnification plate for the test sample surface spots found on the white point, low magnification fracture and mechanical properties test results were normal. Through the slow stretch method and the fracture of the macro and micro analysis, to confirm the low-frequency crack as white point crack.