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首页> 外文期刊>Journal of Materials Engineering and Performance >Cryorolling-Induced Texture, Mechanical Properties and Fracture Behavior of Al-Mg-Si Alloys During Cold Deformation
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Cryorolling-Induced Texture, Mechanical Properties and Fracture Behavior of Al-Mg-Si Alloys During Cold Deformation

机译：冷变形过程中Al-Mg-Si合金的低温诱导的质地，机械性能和断裂行为

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This study investigated the texture, mechanical properties, and fracture behavior during cold working of cryorolled (CR) Al-Mg-Si alloys. An x-ray texture goniometer was used to examine the crystallographic texture, and tensile tests were performed to understand the deformation behavior in more detail. SEM/EBSD/TEM was used to observe the microstructures and fracture morphology of the alloy during cryorolling. The microstructures indicated that a large number of ultrafine grains and dislocations formed after cryorolled. The recrystallization was prohibited due to low temperature during deformation. The ultrafine grains and dislocation strength improved the tensile strength from 279.38 MPa for the room-rolled alloy to 313.98 MPa for the cryorolled alloy; better plasticity (4.6%) was observed in the CR sheet. Ductile and intergranular fractures were observed in the CR sheet deformation from 20 to 90%.
机译：本研究研究了冷冻（Cr）Al-Mg-Si合金的冷加工过程中的质地，机械性能和断裂行为。 使用X射线纹理测振仪检查晶体纹理，并进行拉伸试验以更详细地理解变形行为。 SEM / EBSD / TEM用于观察Cryoroling期间合金的微观结构和断裂形态。 微结构表明，在低温后形成的大量超细晶粒和位错。 由于变形期间的低温，禁止重结晶。 超细晶粒和脱位强度从279.38MPa改善了房间轧合金的拉伸强度，以313.98MPa用于低温合金; 在Cr板上观察到更好的可塑性（4.6％）。 在Cr板变形中观察到延展性和晶间骨折从20-90％。

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