Effect of repair weld length on microstructure evolution and mechanical properties of 30CrMnSiNi2A ultra-high strength steel

Zhang, Min; Zhang, Zhiqiang; Lei, Longyu; Zhou, Wenkun; Du, Mingke; Zhang, Bingxian

doi:10.1016/j.jmrt.2023.01.175

Cited by 6 publications

(2 citation statements)

References 30 publications

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“…Liu et al [7] observed the correlation between the movement mechanism of solid and liquid phases and microstructure at different forging temperatures through semi-solid forging experiments, emphasizing the importance of forging temperature on the evolution of the microstructure. Bohan et al [8] investigated the effect of process parameters on the microstructure and yield strength of the metamorphic layer through grinding and crystal plasticity finite elements, and found that the grinding process parameters affect the microstructure and distribution of the metamorphic layer, thus changing its yield strength. Zheng et al [9] focused on the effect of deep cooling treatment on the microstructure of 8Cr4Mo4V bearing steel, and observed that deep cooling treatment helps to promote the transformation of residual austenite to martensite transformation.…”

Section: Introductionmentioning

confidence: 99%

Mechanism and prediction of residual stress generation in ultrasonic vibration-assisted grinding of bearing steel

Zhang,

Luan,

Zhao

et al. 2024

Preprint

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The surface residual stress of the parts has an important influence on their performance. The generation mechanism of surface residual stress in ultrasonic vibration-assisted grinding (UVAG) of bearing steel was investigated, and the correlation between processing parameters and residual stresses was obtained. Based on the ultrasonic vibration-assisted grinding force and thermal model and the flow stress model considering the initial material microstructure, the mechanical and thermal stresses of the material were calculated. Finally, the theoretical model of residual stress is established based on the yield theory and experimentally verified. High-speed ultrasonic aerostatic spindle for ultrasonic vibration-assisted grinding, change the inlet pressure to realize the ultrasonic amplitude and frequency adjustment, the experimental results show that the cutting direction and the vertical cutting direction of the residual stress test results and the model prediction results of the average relative error of 11.4% and 11.7%, and the rule of change is more consistent. Based on the experimental results, the influence pattern of process parameters on the experimental results was analyzed. The results show that the residual compressive stress on the surface of ultrasonic vibration-assisted grinding is directly proportional to the grinding depth, feed rate, and inlet pressure of pneumatic ultrasonic wave, and inversely proportional to the linear speed of the grinding wheel. This study provides a theoretical basis for the analysis of UVAG residual stress and optimization of UVAG process parameters.

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Section: Introductionmentioning

confidence: 99%

Mechanism and prediction of residual stress generation in ultrasonic vibration-assisted grinding of bearing steel

Zhang,

Luan,

Zhao

et al. 2024

Preprint

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“…The current literature on the 30CrMnSiN2A material focuses mainly on fatigue life and mechanical properties [ 18 , 19 , 20 , 21 , 22 , 23 ], with barely any attention paid to the wear resistance. Xue et al [ 24 ] investigated the wear resistance of 30CrMnSiNi2A and analyzed the wear mechanisms under different loads and friction speeds.…”

Section: Introductionmentioning

confidence: 99%

Effect of Metallic Coatings on the Wear Performance and Mechanism of 30CrMnSiNi2A Steel

Zu,

He,

et al. 2023

Materials

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The finger lock structure of aircraft landing gear is prone to wear and failure during repeated locking and unlocking processes, which is disastrous for the service safety of the aircraft. At present, the commonly used material for finger locks in the industry is 30CrMnSiNi2A, which has a short wear life and high maintenance costs. It is crucial to develop effective methods to improve the wear resistance of 30CrMnSiNi2A finger locks. This work explores the wear resistance and wear mechanisms of different metallic coatings such as chromium, nickel, and cadmium–titanium on the surface of a 30CrMnSiNi2A substrate. The effects of load and wear time on the wear behavior are also discussed. The results indicated that the wear resistance of the chromium coating was the maximum. When the load was 80 N and 120 N, the wear mechanisms were mainly oxidation and adhesive. For greater loads, the wear mechanism of the coating after failure was mainly abrasive and oxidation, and the wear was extremely severe. When the load was 80 N, for a greater loading time, the wear mechanisms were mainly oxidation and adhesive.

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Assessing the Consequences of Repetitive Repair Welding in Shielded Metal Arc Welding (SMAW) on Material Properties in API 5L Grade B PSL 2 Welded Pipelines

Aini,

Lydwina,

Setiawan

et al. 2024

Trans Indian Inst Met

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Effect of repair weld length on microstructure evolution and mechanical properties of 30CrMnSiNi2A ultra-high strength steel

Cited by 6 publications

References 30 publications

Mechanism and prediction of residual stress generation in ultrasonic vibration-assisted grinding of bearing steel

Mechanism and prediction of residual stress generation in ultrasonic vibration-assisted grinding of bearing steel

Effect of Metallic Coatings on the Wear Performance and Mechanism of 30CrMnSiNi2A Steel

Assessing the Consequences of Repetitive Repair Welding in Shielded Metal Arc Welding (SMAW) on Material Properties in API 5L Grade B PSL 2 Welded Pipelines

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