Results 11 to 20 of about 4,400 (278)

Study on Surface Integrity and Fatigue Properties of TC4 Titanium Alloy by Surface Ultrasonic Rolling

open access: yesMaterials, 2023
In this paper, the influence of a surface ultrasonic rolling process on the surface integrity of TC4 titanium alloy and its influence on the fatigue properties were studied. By comparing and analyzing the surface roughness, microhardness, residual stress, microstructure, and fatigue fracture, the surface strengthening and modification mechanism of TC4 ...
Xiaotong Zhu   +4 more
openaire   +3 more sources

Improving fatigue performance of surface-damaged Ti-6Al-4V alloy via ultrasonic surface rolling process [PDF]

open access: yesMATEC Web of Conferences, 2020
Surface damages caused by markings, like laser marking and mechanical marking are detrimental to the fatigue performance of the components. To improve the fatigue performance of laser marked or mechanical marked Ti-6Al-4V alloy, ultrasonic surface ...
Ao Ni, Liu Daoxin, Zhang Xiaohua
doaj   +3 more sources

EFFECT OF STATIC PRESSURE ON SURFACE INTEGRITY OF BERYLLIUM COPPER ALLOY TREATED BY ULTRASONIC ROLLING

open access: yesJixie qiangdu, 2022
To study the effect of static pressure on the surface integrity of beryllium copper alloy during the ultrasonic rolling process, scanning electron microscope, stylus roughness tester, rockwell hardness tester, X-ray diffraction analyzer and ...
LI GuangHui, LIN YouXi, CAI JianGuo
doaj   +2 more sources

Effect of Surface Ultrasonic Rolling Treatment on Rolling Contact Fatigue Life of D2 Wheel Steel [PDF]

open access: yesMaterials, 2020
A GPM-30 fatigue machine was used to investigate the influence of surface ultrasonic rolling (SURT) on the rolling contact fatigue (RCF) life of D2 wheel steel. The experimental results present that the RCF life of the grinding processing sample is 4.1 × 105 cycles.
Pengtao Liu   +4 more
openaire   +3 more sources

GRAY CORRELATION ANALYSIS OF SURFACE INTEGRITY OF ULTRASONIC-ASSISTED ROLLING GCR15 BEARING STEEL

open access: yesJixie qiangdu, 2020
In order to achieve reasonable control of the surface integrity of the workpiece assisted by ultrasonic-assisted rolling. Taking GCr15 bearing steel as the research object,the rotational speed,feed rate and static pressure were selected as the main ...
LEI Jun, SU YongXiang, XU QingJun
doaj   +2 more sources

Effect of Ultrasonic Rolling on Surface Properties of GCr15 Spherical Joint Bearing

open access: yesLubricants
Ultrasonic surface rolling process (USRP) has the potential to improve the surface mechanical properties of metal components with platelike or cylindrical macrostructure, but its effect on spherical surfaces remains to be studied in depth.
Hao Zhang   +4 more
doaj   +2 more sources

Surface integrity and fatigue properties of Ti–6Al–4V alloy under the ultrasonic surface rolling process excited strain rate effect

open access: yesJournal of Materials Research and Technology
Ultrasonic surface rolling process is a novel surface enhancement technique that significantly influences the surface integrity and fatigue performance of titanium alloys.
Xuming Zha   +8 more
doaj   +2 more sources

Enhancement of Fatigue Endurance Limit through Ultrasonic Surface Rolling Processing in EA4T Axle Steel

open access: yesMetals, 2020
Fatigue property is a key evaluation index for the service reliability of railway axle. In this work, the effect of ultrasonic surface rolling processing (USRP) on the surface characteristic and fatigue property was investigated in an EA4T axle steel ...
Xiaodi Wang   +4 more
doaj   +2 more sources

STUDY ON PREDICTION MODEL OF SURFACE HARDNESS IN ULTRASOUND ROLLING EXTRUSION

open access: yesJixie qiangdu, 2020
Surface hardness is an important index for evaluating the quality of surface processing. Ultrasonic rolling and extrusion technology plays a very significant role in surface strengthening. Taking 42 CrMo bearing steel as the object,the range analysis was
WANG XiaoQiang   +3 more
doaj   +2 more sources

SIMLATION OF 3D RESIDUAL STRESS FIELD OF ULTRASONIC SURFACE ROLLING BY DYNAMIC FINITE ELEMENT ANALYSIS

open access: yesJixie qiangdu, 2017
The present paper presents a numerical approach to investigate the surface layer residual stress after ultrasonic surface rolling process(USRP),which is a severe plastic deformation process involving complex static extrusion and dynamic impact.According ...
ZHAO YunCai, WEN ChunBin
doaj   +2 more sources

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