Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 1339 |
| Seiten (von - bis) | 1-17 |
| Seitenumfang | 17 |
| Fachzeitschrift | Metals |
| Jahrgang | 10 |
| Ausgabenummer | 10 |
| Publikationsstatus | Veröffentlicht - 7 Okt. 2020 |
Abstract
By combining different materials, for example, high-strength steel and unalloyed structural steel, hybrid components with specifically adapted properties to a certain application can be realized. The mechanical processing, required for production, influences the subsurface properties, which have a deep impact on the lifespan of solid components. However, the influence of machining-induced subsurface properties on the operating behavior of hybrid components with a material transition in axial direction has not been investigated. Therefore, friction-welded hybrid shafts were machined with different process parameters for hard-turning and subsequent deep rolling. After machining, subsurface properties such as residual stresses, microstructures, and hardness of the machined components were analyzed. Significant influencing parameters on surface and subsurface properties identified in analogy experiments are the cutting-edge microgeometry, S, and the feed, f, during turning. The deep-rolling overlap, u, hardly changes the residual stress depth profile, but it influences the surface roughness strongly. Experimental tests to determine fatigue life under combined rolling and rotating bending stress were carried out. Residual stresses of up to −1000 MPa, at a depth of 200 µm, increased the durability regarding rolling-contact fatigue by 22%, compared to the hard-turned samples. The material transition was not critical for failure.
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in: Metals, Jahrgang 10, Nr. 10, 1339, 07.10.2020, S. 1-17.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Production-related surface and subsurface properties and fatigue life of hybrid roller bearing components
AU - Breidenstein, Bernd
AU - Denkena, Berend
AU - Krödel, Alexander
AU - Prasanthan, Vannila
AU - Poll, Gerhard
AU - Pape, Florian
AU - Coors, Timm
N1 - Funding information: This research was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—CRC 1153—grant number 252662854, in the subprojects B4 and C3.
PY - 2020/10/7
Y1 - 2020/10/7
N2 - By combining different materials, for example, high-strength steel and unalloyed structural steel, hybrid components with specifically adapted properties to a certain application can be realized. The mechanical processing, required for production, influences the subsurface properties, which have a deep impact on the lifespan of solid components. However, the influence of machining-induced subsurface properties on the operating behavior of hybrid components with a material transition in axial direction has not been investigated. Therefore, friction-welded hybrid shafts were machined with different process parameters for hard-turning and subsequent deep rolling. After machining, subsurface properties such as residual stresses, microstructures, and hardness of the machined components were analyzed. Significant influencing parameters on surface and subsurface properties identified in analogy experiments are the cutting-edge microgeometry, S, and the feed, f, during turning. The deep-rolling overlap, u, hardly changes the residual stress depth profile, but it influences the surface roughness strongly. Experimental tests to determine fatigue life under combined rolling and rotating bending stress were carried out. Residual stresses of up to −1000 MPa, at a depth of 200 µm, increased the durability regarding rolling-contact fatigue by 22%, compared to the hard-turned samples. The material transition was not critical for failure.
AB - By combining different materials, for example, high-strength steel and unalloyed structural steel, hybrid components with specifically adapted properties to a certain application can be realized. The mechanical processing, required for production, influences the subsurface properties, which have a deep impact on the lifespan of solid components. However, the influence of machining-induced subsurface properties on the operating behavior of hybrid components with a material transition in axial direction has not been investigated. Therefore, friction-welded hybrid shafts were machined with different process parameters for hard-turning and subsequent deep rolling. After machining, subsurface properties such as residual stresses, microstructures, and hardness of the machined components were analyzed. Significant influencing parameters on surface and subsurface properties identified in analogy experiments are the cutting-edge microgeometry, S, and the feed, f, during turning. The deep-rolling overlap, u, hardly changes the residual stress depth profile, but it influences the surface roughness strongly. Experimental tests to determine fatigue life under combined rolling and rotating bending stress were carried out. Residual stresses of up to −1000 MPa, at a depth of 200 µm, increased the durability regarding rolling-contact fatigue by 22%, compared to the hard-turned samples. The material transition was not critical for failure.
KW - Bearing fatigue life
KW - Hybrid bearing
KW - Residual stresses
KW - Rolling contact fatigue
KW - Tailored forming
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=85092417166&partnerID=8YFLogxK
U2 - 10.3390/met10101339
DO - 10.3390/met10101339
M3 - Article
AN - SCOPUS:85092417166
VL - 10
SP - 1
EP - 17
JO - Metals
JF - Metals
SN - 2075-4701
IS - 10
M1 - 1339
ER -