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题名: Effects of Trace Si Addition on the Microstructures and Tensile Properties of Ti-3Al-8V-6Cr-4Mo-4Zr Alloy
作者: Ba, Hongbo;  Dong, Limin;  Zhang, Zhiqiang;  Lei, Xiaofei
发表日期: 2017-8-1
摘要: The microstructural evolution and tensile properties of Ti-3Al-8V-6Cr-4Mo-4Zr titanium alloys with various Si contents were investigated. The results revealed that the addition of trace Si and the presence of Zr induced the formation of (TiZr)(6)Si-3 silicides, in the size range from 100 nm to 300 nm. The fine silicide precipitates refined beta grains. The tensile strength increased about 40 MPa due to precipitation strengthening and grain refinement, and the ductility of the two alloys was similar. The tensile fracture mode of the alloys was dimple ductile fracture.
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Recommended Citation:
Ba, Hongbo,Dong, Limin,Zhang, Zhiqiang,et al. Effects Of Trace Si Addition On The Microstructures And Tensile Properties Of Ti-3al-8v-6cr-4mo-4zr Alloy[J]. Mdpi Ag,2017,7(8):-.

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