PSI - Issue 57

3

Author name / Structural Integrity Procedia 00 (2019) 000 – 000

Luc AMAR et al. / Procedia Structural Integrity 57 (2024) 217–227

219

Table 1. Qualitativeclassification of surfacetreatment palliative to fretting wear from (Fu, Wei and Batchelor, 2000; Amar and Shandro, 2017)

Decrease the friction coefficient

Increase the hardness

Durability or adhesion

Fretting wear reduction

Fretting fatigue reduction

Compression residual stress

Increase the roughness

Finition

Price

✓ ✓ D D ✗ D ✓ ✓ ✓ D

✓

✓

✓✓ ✓✓

✓ ✓ ✓

✓ ✓ ✓ ✓ D ✓ ✓ ✓ ✓

✓ ✓

Carburizing

D D D D ✓ ✗ D ✗ ✓ ✓

✓✓ ✗✗

✓✓

Nitriding

Electroplating (Cr, Ni, …) Hard anodizing Shot-peening Plasma sprayed coating Solid lubricated coatings Ion implantation IBED hard films PVD & CVD hard coatings Laser alloying or laser cladding Low plasticity burnishing (LPB)

✓ ✓ ✓ D D ✓ ✓ ✓ ✓

✗ ✓ ✗

✗✗ ✗✗ ✓✓

✗ ✓ D

N/A ✓✓

✓✓

✓✓

✗✗

✓ ✗

D ✓ ✓

✓✓

D

D

✓✓

✓✓

✗✗✗ ✗✗

✓ D ✗ ✓

✗✗

✓ D

✓✓

✓✓

✗ ✓

D

✓✓

D

✓

✓✓

2. Methodology At first, a survey was conducted to the board of mechanical transmission and rolling bearings focusing on type of fretting damages, concerned parts, materials, surface, heat treatment and lubrication used (Amar, 2021). It appears that twelve major industrial of the mechanical industry was interested in this study from the fields of rolling bearings, industrial gearboxes and electric motors. According to the survey, the priority was given to the following tribologica l configurations (see Table 2) Table 2. Priority given from the survey and tested samples

Test reference

Surface A (fixed plate)

Surface B (oscillating ball)

Fre-eng-1 and Fre-eng-2 Fre-eng-3 and Fre-eng-4 Fre-eng-5 and Fre-eng-6 Fre-eng-7 and Fre-eng-8 Fre-eng-9 and Fre-eng-10 Fre-eng-11 and Fre-eng-12

42CrMo4 annealed, Ra=0.8µm

100Cr6

42CrMo4 through hardened, 300HB, Ra=0.8µm

through hardened, 55HRC, Ra=0.8µm

42CrMo4 Induction hardened, IHD * =2mm, 53HRC, Ra=0.8µm 42CrMo4 Nitrided, NHD † =0.2mm, Ra=0.8µm, with the white layer 20MnCr5 case hardened, CHD ‡ =1mm, 58 HRC, Ra=0.8µm

100Cr6 through hardened, 55HRC, Ra=0.8µm

* IHD : Induction Hardened Depth † NHD : Nitrided Hardened Depth ‡ CHD : Case Hardened Depth