Profile and Areal Surface Parameters for Fatigue Fracture Characterisation

被引：43
|
作者：
Macek, Wojciech [1 ]
Branco, Ricardo [2 ]
Szala, Miroslaw [3 ]
Marciniak, Zbigniew [4 ]
Ulewicz, Robert [5 ]
Sczygiol, Norbert [6 ]
Kardasz, Piotr [7 ]
机构：
[1] Opole Univ Technol, 76 Proszkowska St, PL-45758 Opole, Poland
[2] Univ Coimbra, Dept Mech Engn, CEMMPRE, Rua Luis Santos, P-3030788 Coimbra, Portugal
[3] Lublin Univ Technol, Fac Mech Engn, Dept Mat Engn, Nadbystrzycka 36D, PL-20618 Lublin, Poland
[4] Opole Univ Technol, Dept Mech & Machine Design, Ul Mikolajczyka 5, PL-45271 Opole, Poland
[5] Czestochowa Tech Univ, Dept Prod Engn & Safety, PL-42201 Czestochowa, Poland
[6] Czestochowa Tech Univ, Fac Mech Engn & Comp Sci, PL-42201 Czestochowa, Poland
[7] Wroclaw Sch Informat Technol, Lutra 4, PL-54239 Wroclaw, Poland
来源：
MATERIALS | 2020年 / 13卷 / 17期
关键词：
surface metrology; surface topography; bending-torsion fatigue; fatigue fracture; CRACK GROWTH; ROUND BARS; TORSION; BEHAVIOR; ALLOY; SENSITIVITY; TOPOGRAPHY; MICROSCOPY; FAILURE; TENSILE;
D O I：
10.3390/ma13173691
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Post-mortem characterisation is a pivotal tool to trace back to the origin of structural failures in modern engineering analyses. This work compared both the crack propagation and rupture roughness profiles based on areal parameters for total fracture area. Notched and smooth samples made of weather-resistant structural steel (10HNAP), popular S355J2 structural steel and aluminium alloy AW-2017A under bending, torsion and combined bending-torsion were investigated. After the fatigue tests, fatigue fractures were measured with an optical profilometer, and the relevant surface parameters were critically compared. The results showed a great impact of the loading scenario on both the local profiles and total fracture areas. Both approaches (local and total fracture zones) for specimens with different geometries were investigated. For all specimens, measured texture parameters decreased in the following order: total area, rupture area and propagation area.
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页数：14
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