Study of the microstructures and mechanical properties of ZK61 magnesium alloy cylindrical parts with inner ribs formed by hot power spinning

Yuan, Shuai; Xia, Qinxiang; Long, Jinchuan; Xiao, Gangfeng; Cheng, Xinbin

doi:10.1007/s00170-020-06091-2

Cited by 32 publications

(14 citation statements)

References 27 publications

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“…As shown in figure 2, the inner diameter is 60mm, and the maximum forming height is 4mm. Previous studies have shown that for the designed structural parameters of the inner ribs, when the spinning temperature (T) is 300 °C, the thinning ratio of wall thickness (ɸ) is 70%, and the feed rate (f) is 0.4mm/r, the cylindrical parts with good forming quality and uniform microstructure can be obtained, as shown in figure 3 [14].…”

Section: Macro-meso Coupled Model Construction Of Hot Power Spinningmentioning

confidence: 99%

Simulation study on the texture evolution mechanism of magnesium alloy cylindrical parts with inner ribs during hot power spinning

Yuan

Xia

Cheng

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Grasping the mechanism of texture evolution during hot power spinning of magnesium alloy cylindrical parts with inner ribs, which have the dual lightweight advantages of material and structure, can provide a theoretical basis for texture regulation in the preparation of high-performance magnesium alloys. Based on the crystal plastic finite element method, the macro-meso coupled model was constructed and the simulation study of magnesium alloy cylindrical parts with inner ribs during hot power spinning was carried out. The texture evolution mechanism at the position of cylindrical wall (CW) and inner rib (IR) was revealed by tracking the change of grain orientation and the analysis of Schmid factor (SF). The results show that the c-axis of grains of magnesium alloy extruded blank gradually deflects from parallel to tangential direction (TD) to parallel to radial direction (RD). Under the action of radial compressive stress, the formation of texture at CW is attributed to the orientation deflection of grains which have larger SF of basal slip system and locate in the region of the maximum texture strength of blank, while the origin of the texture at IR mainly comes from the orientation deflection of grains with a smaller (0.1~0.2) SF of basal slip system.

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Section: Macro-meso Coupled Model Construction Of Hot Power Spinningmentioning

confidence: 99%

Simulation study on the texture evolution mechanism of magnesium alloy cylindrical parts with inner ribs during hot power spinning

Yuan

Xia

Cheng

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…As a kind of local incremental forming technology, spinning has great advantages of high dimensional accuracy and low forming force in manufacturing rotational parts through accumulating multiple small strains [14][15][16][17]. Unfortunately, spinning prefers to cause the fracture and under lling of ribs, so it is hard to manufacture high performance parts with ribs [18,19].…”

Section: Introductionmentioning

confidence: 99%

Novel process combined extrusion and severe plastic deformation for plate component with rib-web structure of magnesium alloys

Zhu

Sun

Qian

et al. 2022

Int J Adv Manuf Technol

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Plates with rib-web structure of magnesium alloys can hardly fabricated through conventional method. In this work, the variable circular channel angular extrusion (VCCAE) combined extrusion and severe plastic deformation is proposed, in which billet undergoes severe deformation at several variable circular angular channel. The FE model for VCCAE of scaling plate with ribs is established and the experimental set up is designed. The feasibility of the novel process and the accuracy of the FE model are validated by the simulations and experiments. Stress state and the effective strain distribution in longitudinal section and cross section are analyzed. The results show that stress and strain distribution in longitudinal section is extremely inhomogeneous, and obvious stress concentration at the shear plane is founded. The microstructure in angular region is more uniform and ner, which validate that the severe shear deformation induced by the angular channel in the VCCAE process could promote the deformation uniformity and grain re nement. The results of numerical simulation and experiments demonstrate that the VCCAE process proposed in this paper is feasible and it has great potential to manufacture highperformance plate with ribs.

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“…The spinning process is usually employed to manufacture integral curved heads owing to its remarkable flexibility and efficiency [1][2][3][4][5]. Usually, the spinning parameters can be optimized to improve the forming accuracy and microstructures of spun parts [6][7][8][9][10]. However, owing to the dramatic plastic deformation in the spinning process, the generation of residual stress in spun heads is inevitable [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Residual-stress relaxation mechanism and model description of 5052H32 Al alloy spun ellipsoidal heads during annealing treatment

et al. 2021

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Marginal-restraint mandrel-free spinning is an advanced technology for manufacturing ellipsoidal heads with large diameter-thickness ratios. Nevertheless, the spinning-induced residual stress, which greatly influences the in-service performance of spun heads, should be removed. In this study, the effects of annealing on the residual-stress relaxation behavior of 5052H32 aluminum alloy spun heads were investigated. It is found that the residual stress first rapidly decreases and then remains steady with the increase in annealing time at the tested annealing temperatures. The relaxation of the residual stress becomes increasingly obvious with the increase in annealing temperature. When the annealing temperature is less than 220 °C, there are no obvious changes in grain size. Moreover, the spinning-induced dislocations are consumed by the static recovery behavior, which decreases the residual stress during annealing. When the annealing temperature is approximately 300 °C, the broken grains transform into equiaxed grains. In addition, static recrystallization and recovery behaviors occur simultaneously to promote the relaxation of the residual stress. Considering the different stress relaxation mechanisms, a model based on the Zener-Wert-Avrami equation was established to predict the residual-stress relaxation behavior. Finally, the optimized annealing temperature and time were approximately 300 °C and 30 min, respectively.

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Study of the microstructures and mechanical properties of ZK61 magnesium alloy cylindrical parts with inner ribs formed by hot power spinning

Cited by 32 publications

References 27 publications

Simulation study on the texture evolution mechanism of magnesium alloy cylindrical parts with inner ribs during hot power spinning

Simulation study on the texture evolution mechanism of magnesium alloy cylindrical parts with inner ribs during hot power spinning

Novel process combined extrusion and severe plastic deformation for plate component with rib-web structure of magnesium alloys

Residual-stress relaxation mechanism and model description of 5052H32 Al alloy spun ellipsoidal heads during annealing treatment

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