Results 41 to 50 of about 272 (163)

Very High Cycle Fatigue Behavior of TA11 Titanium Alloy

Journal of Aeronautical Materials, 2017
The conventional fatigue test method was used to obtain the very high cycle fatigue (VHCF) limits of 3×107 and 1×108 cycles for TA11 titanium alloy in different temperatures and stress ratios.
JIAO Zehui, YU Huichen, ZHONG Bin, LI Xudong, ZHOU Jingyi   +4 more
doaj   +1 more source

Effect of Stress Ratio on Very High Cycle Fatigue Properties of PM‐HIPed Inconel 625

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 8, Page 3593-3610, August 2025.
ABSTRACT This study investigated the impact of stress ratio on the fatigue performance and fatigue crack initiation characteristics of PM‐HIPed Inconel 625 in the very high cycle regimes. Ultrasonic fatigue tests, operating at a frequency of 20 kHz, were conducted on PM‐HIPed Inconel 625 samples under stress ratios of R = −1 and 0.1 up to the ultimate ...
Faezeh Javadzadeh Kalahroudi, Dimitrios Nikas, Tomas Berglund, Mikael Grehk   +3 more
wiley   +1 more source

Fractographic Analysis and Fatigue Behavior of Additively Manufactured Ni‐Superalloy Components with Post Processing Heat Treatment and Hot Isostatic Pressing

Advanced Engineering Materials, Volume 27, Issue 12, June 2025.
A study of mechanical properties and fractography of PBF‐LB/M‐built Inconel 718, performing heat treatments and hot‐isostatic pressing, is presented. Ultimate tensile strength and fatigue behavior are evaluated, examining differences in maximum load behavior, elongation, and regimes of fatigue.
David Sommer, Ben Truetsch, Cemal Esen, Ralf Hellmann   +3 more
wiley   +1 more source

Experimental on ultrahigh frequency vibration fatigue of GH4169 nickel-based superalloy

Journal of Aeronautical Materials
To address the very high cycle fatigue（VHCF）issue of GH4169 nickel-based superalloy，which is widely utilized in aero-engines，a fatigue specimen subjected to 20 kHz ultrahigh frequency vibration is designed and tested utilizing a piezoelectric ultrasonic ...
WANG Zhaohan, PAN Kai, CHEN Yonghui, HANG Chao, WANG Yongjie, YAN Qun   +5 more
doaj   +1 more source

Impact of bridge‐specific manufacturing conditions on fatigue of welded joints

Steel Construction, Volume 18, Issue 2, Page 89-98, May 2025.
Abstract Box girders with steel cantilevers are often used in the design of composite steel bridges. The welded joints between the main girder and the transverse system are exposed to fatigue loading. Manual welds are common for which the manufacturing conditions can vary in terms of welding position and environmental settings. It is therefore intended
Raphael Erlemann, Karsten Geißler
wiley   +1 more source

VHCF Response of Two AISI H13 Steels: Effect of Manufacturing Process and Size-Effect

Metals, 2019
In the last decades, the fatigue lifetime of structural components has increased significantly and in many industrial applications (aerospace, automotive, and energy production industry) is even larger than 1010 cycles.
Andrea Tridello
doaj   +1 more source

The significance of grain size, segregations and inclusions for the very high cycle fatigue (VHCF) behavior of tempered martensitic steels

Procedia Structural Integrity, 2019
Abstract High-loaded tempered steels, being used in mobility, power generation and plant engineering, are frequently exposed to very high numbers of loading cycles (up to 1 billion cycles). Optimization and fatigue testing for such conditions is challenging and difficult, since damage is concentrated to very small areas of local cyclic plasticity ...
Ulrich Krupp, Kevin Koschella, Alexander Giertler   +2 more
openaire   +1 more source

Comparability of Fatigue Strength and Life Estimation of a CF‐PEKK Composite Under Low and Ultrasonic Frequencies Using Time‐Temperature‐Based Approaches

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 5, Page 2363-2380, May 2025.
ABSTRACT Predicting very high cycle fatigue (VHCF) life in composites is challenging due to the lengthy testing times required by traditional methods. Ensuring compatibility between VHCF and high cycle fatigue (HCF) data presents an additional challenge.
Aravind Premanand, Hanna Schimmelpfeng, Frank Balle   +2 more
wiley   +1 more source

VERY HIGH CYCLE FATIGUE (VHCF) BEHAVIOR OF AUSTENITC STAINLESS STEELS AND THEIR WELDS FOR REACTOR INTERNALS AT AMBIENT AND OPERATING RELEVANT TEMPERATURE

, 2022
The fatigue assessment of safety relevant components is of importance for ageing management with regard to safety and reliability of nuclear power plants. Austenitic stainless steels are often used for reactor internals due to their excellent mechanical and technological properties as well as their corrosion resistance.
Smaga, Marek, Daniel, Tobias, Regitz, Elen, Beck, Tillmann, Schopf, Tim, Veile, Georg, Weihe, Stefan, Rudolph, Jürgen, Fischer, Udo   +8 more
openaire   +1 more source

Assessing the Very High Cycle Fatigue Behavior and Frequency Effect of Structural Steel Welds

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 4, Page 1529-1541, April 2025.
ABSTRACT The very high cycle fatigue behavior of S275J2+N flux‐core arc welded joints was investigated using the ultrasonic fatigue testing method at a loading frequency of 20 kHz. A bespoke specimen design featuring the weld toe was employed to more suitably represent in‐service welded joints than typical ultrasonic fatigue testing specimens.
Andrew England, Yevgen Gorash, Athanasios Toumpis   +2 more
wiley   +1 more source