Table 10 Range analysis Table.

From: Investigation of surface integrity in inconel 718 enhanced by heat treatment, ultrasonic impact and multi-media jet processing

 

Factor

Range R

Influence order

Surface roughness/µm

ATT/℃

0.970

ATT > USF > JP

USF/Hz

0.402

JP/MPa

0.296

Surface microhardness/HV

ATT/℃

75.48

ATT > JP > USF

USF/Hz

23.61

JP/MPa

16.14

Surface residual stress/MPa

ATT/℃

168.43

ATT > JP > USF

USF/Hz

30.29

JP/MPa

29.00

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