Impact energy test of metallic weld seam and calculation method
A technology of impact energy and impact sample, which is applied in the field of metal weld impact energy test and calculation, can solve the problems of high test cost, cumbersome process, irregular sample notch processing, etc., to reduce test cost and save test materials , reduce the effect of repeated experiments
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[0035] The present invention will be further described below according to specific embodiments,
[0036] 1. Take P92 steel weld impact samples numbered 1-8, conduct macroscopic metallographic observation on both sides, and calculate the fine grain ratio f according to formula (1) n , as shown in Table 2 after calculation.
[0037] f n = Σ ( S i ) L × 100 % Formula 1)
[0038] Among them, S i is the length of the i-th fine grain at the side of the P92 steel weld, in mm; L is the length of the side of the P92 weld, in mm;
[0039] 2. Conduct an impact test on the P92 steel parent materials numbered A, B and C. The test steps are:
[0040] Take three 55mmx10mmx10mm P92 steel base materials numbered A, B and C and eight 55mmx10mmx10mm P92 st...
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