Isothermal forming of the large-size AZ80A magnesium alloy forging with high mechanical properties

Lin, Yuan; Zhao, Zhonglong; Shi, Wenchao; Xu, Fu; Shan, Debin

doi:10.1007/s00170-014-6780-9

Cited by 23 publications

(9 citation statements)

References 18 publications

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“…The absence of studies discussing such parts is easily visible throughout this review. While some authors conduct T5 treatments [33,91,138] and others have shown the increase of material ductility after recrystallization treatment [32,75], there are nearly no forged parts in T6 state mentioned in the investigated literature [75,99]. This might be the case because only few Mg alloys exist which show age hardening to a strength beyond that gained by work hardening in the forging process.…”

Section: Discussionmentioning

confidence: 99%

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Mg-Alloys for Forging Applications—A Review

et al. 2020

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Interest in magnesium alloys and their applications has risen in recent years. This trend is mainly evident in casting applications, but wrought alloys are also increasingly coming into focus. Among the most common forming processes, forging is a promising candidate for the industrial production of magnesium wrought products. This review is intended to give a general introduction into the forging of magnesium alloys and to help in the practical realization of forged products. The basics of magnesium forging practice are described and possible problems as well as material properties are discussed. Several alloy systems containing aluminum, zinc or rare earth elements as well as biodegradable alloys are evaluated. Overall, the focus of the review is on the process control and processing parameters, from stock material to finished parts. A discussion of the mechanical properties is included. These data have been comprehensively reviewed and are listed for a variety of magnesium forging alloys.

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Section: Discussionmentioning

confidence: 99%

“…A wheel-shaped part (Ø 630 mm) was produced by Yuan et al [91] by isothermal die forging. The forming process was simulated first and based on the simulation data, forging took place at 330 • C using a speed of 1 mm s −1 .…”

Section: Az80mentioning

confidence: 99%

Mg-Alloys for Forging Applications—A Review

et al. 2020

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“…With the continuous development of precision plastic forming technology, the requirements of the hot forging process in the metal products industry are increasingly becoming stricter. Light weight and safety have become important standards for assessing the quality of metal forging products [1][2][3][4]. Magnesium alloy is a new type of metal material with extensive development potential and has the advantages of light weight, high specific strength and stiffness, good dimensional stability, easy processing, and recycling ability [5,6].…”

Section: Introductionmentioning

confidence: 99%

3D Processing Maps of Cast Mg‐9Gd‐3Y Alloy and Numerical‐Experimental Verification

Luo

2021

Advances in Materials Science and Engineering

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The hot compression behavior of Mg-9Gd-3Y (GW93) alloy was investigated by carrying out isothermal compression tests at the deformation temperature range of 300–450°C and strain rate range of 0.001–1s−1. Considering the influence of the strain on the formability of the GW93 alloy, three-dimensional (3D) processing maps were established based on the dynamic material model. The 3D processing maps indicate that the formability of the material improved with the decrease of the strain rate and the increase of the heating temperature, and the material at lower heating temperature mostly underwent flow instability. The formable processing region of the hot deformation of the GW93 alloy was concentrated within the temperature range of 380–450°C and the strain rate range of 0.001–0.01 s−1. Subsequently, the 3D processing maps were embedded into the finite element (FE) software DEFORM-3D by means of user subroutines, and the formability of GW93 alloy during the isothermal plane strain forging process was predicted. The FE simulation results revealed that the formability of the material at low strain rate improved compared with that at high strain rate under the same temperature. Finally, an isothermal plane strain forging technological experiment was carried out, and the microstructure of the formed sample was analyzed. The experimental result is in good agreement with that of the numerical simulation. Combined with microstructural observation, the accuracy of the simulation results and the 3D processing maps of the GW93 alloy was verified.

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“…Characterization of the as-forged properties of AZ80 forged components in recent years has become more widespread in literature. Many studies have focused on the characterization of the monotonic structural properties of forged AZ80 Mg, in open die forgings [3,4] as well as for closed die forged components such as wheels [5][6][7], aerospace components [7][8][9][10], and finally, automotive structural components [11][12][13][14][15][16][17][18][19][20]. In general, the main focus of these studies was the feasibility of achieving adequate material flow to produce the desired forged shape, whilst characterizing the resulting microstructure and quasi-static material properties.…”

Section: Introductionmentioning

confidence: 99%

A Method for Comparing the Fatigue Performance of Forged AZ80 Magnesium

Gryguc

Behravesh

Jahed

et al. 2021

Metals

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A closed die forging process was developed to successfully forge an automotive suspension component from AZ80 Mg at a variety of different forging temperatures (300 °C, 450 °C). The properties of the forged component were compared and contrasted with other research works on forged AZ80 Mg at both an intermediate forging and full-scale component forging level. The monotonic response, as well as the stress and strain-controlled fatigue behaviours, were characterized for the forged materials. Stress, strain and energy-based fatigue data were used as a basis for comparison of the durability performance. The effects of the starting material, forging temperature, forging geometry/configuration were all studied and aided in developing a deeper understanding of the process-structure-properties relationship. In general, there is a larger improvement in the material properties due to forging with cast base material as the microstructural modification which enhances both the strength and ductility is more pronounced. In general, the optimum fatigue properties were achieved by using extruded base-material and forging using a closed-die process at higher strain rates and lower temperatures. The merits and drawbacks of various fatigue damage parameters (FDP’s) were investigated for predicting the fatigue behaviour of die-forged AZ80 Mg components, of those investigated, strain energy density (SED) proved to be the most robust method of comparison.

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Isothermal forming of the large-size AZ80A magnesium alloy forging with high mechanical properties

Cited by 23 publications

References 18 publications

Mg-Alloys for Forging Applications—A Review

Mg-Alloys for Forging Applications—A Review

3D Processing Maps of Cast Mg‐9Gd‐3Y Alloy and Numerical‐Experimental Verification

A Method for Comparing the Fatigue Performance of Forged AZ80 Magnesium

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