Enhanced tensile and bending yield strengths of 304 stainless steel and H62 brass by surface spinning strengthening

Ren, Changliang; Wang, Q.; Zhang, Z.J.; Yang, H.J.; Zhang, Z.F.

doi:10.1016/j.msea.2019.03.113

Cited by 33 publications

(13 citation statements)

References 41 publications

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“…By contrast, the work-hardening exponent is a positive factor for the surface strengthening process and it promotes an external strain extending along the depth direction. During the surface mechanical strengthening process, this external stress is applied on the topmost surface layer as in the impact from the high-speed moving steel shots during the SP treatment and the grinding from high-speed rotating cutters during the 3S treatment in the present work [32,33]. Both the numerical measurements as in the finite element method and the experimental measurements as with X-rays reveal that the distribution of the applied plastic strain in the surface layer is graded [34][35][36].…”

Section: Characteristics Of the Maximum Microhardness And Thickness O...mentioning

confidence: 75%

The nature of the maximum microhardness and thickness of the gradient layer in surface-strengthened Cu-Al alloys

et al. 2021

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Section: Characteristics Of the Maximum Microhardness And Thickness O...mentioning

confidence: 75%

The nature of the maximum microhardness and thickness of the gradient layer in surface-strengthened Cu-Al alloys

et al. 2021

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“…~ 320 N). For instance, stainless steel has a yield strength of ~ 600 MPa [29] which is ~ 14 times that of PLA (~ 43 MPa) [20]. The use of the stainless steel, therefore, is expected to increase the load-bearing capacity of our split to ~ 4500 N.…”

Section: Discussion and Future Directionsmentioning

confidence: 99%

Spiky-joint: a bioinspired solution to combine mobility and support

2021

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Mobility and support are two structural properties that are often mutually exclusive. However, combining them could enhance the performance of mechanical components, and offer novel technical applications. Here through the implementation of a bioinspired interlocking mechanism in the design of a supportive, yet mobile, wrist splint, we tackled the conflicting combination of the two properties. We elaborated our design into a technology readiness level and, using 3D printing, directly converted it into a real-life application. In contrast to the existing splints, our bioinspired splint supports human wrist without impairing its movements. Hence, it can be used to prevent hyperextension injuries without hindering wrist function. By being interlocked at the maximum wrist extension, our splint could be an ideal wrist support for athletes, especially weightlifters. By restricting the wrist mobility, it could also be used as a support device to treat less severe medical issues, such as sprain, strain, or even for the recovery after cast removal, during which full immobilization may result in muscle atrophy. Our design strategy is purely structural; hence, it can be easily modified and implemented in other engineering applications. The simple, yet efficient, solution developed in this study offers a universal paradigm for developing engineering systems that pursuit both mobility and support. Graphic abstract

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“…The objective of this study is introducing a new developed surface strengthening method, surface spinning strengthening (3S) technology, [27][28][29][30][31][32] to improve the surface strengthen of Al alloy welded joint to enhance fatigue life. The surface microstructures and mechanical properties of the Al alloy with and without 3S were detailedly studied to reveal the surface strengthening mechanism.…”

Section: Introductionmentioning

confidence: 99%

Improving fatigue life of 7N01 Al alloy weld by surface spinning strengthening

Wang

et al. 2021

Fatigue Fract Eng Mat Struct

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The purpose of this study is to improve the surface microstructure and mechanical properties of 7N01 Al alloy welded joints by surface spinning strengthening (3S), so as to improve the fatigue life at certain stress. Results show that after the 3S treatment, the microhardness of the welded joint increases significantly due to the introduction of some nanoprecipitates and dislocations, and the strength and elongation increase simultaneously. The minimum fatigue life of the welded specimen under the condition of maximum stress of 150 MPa and stress ratio of 0.1 is increased from less than 106 cycles to more than 3 × 106 cycles after the 3S treatment. Fracture surface analysis shows that the crack initiation site of the sample with welded joint is turned from the surface to the subsurface after 3S treatment, which is beneficial to the elimination of surface defect and the improvement of surface strength.

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Enhanced tensile and bending yield strengths of 304 stainless steel and H62 brass by surface spinning strengthening

Cited by 33 publications

References 41 publications

The nature of the maximum microhardness and thickness of the gradient layer in surface-strengthened Cu-Al alloys

The nature of the maximum microhardness and thickness of the gradient layer in surface-strengthened Cu-Al alloys

Spiky-joint: a bioinspired solution to combine mobility and support

Improving fatigue life of 7N01 Al alloy weld by surface spinning strengthening

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