电子背散射衍射
合金
微观结构
材料科学
极限抗拉强度
冶金
再结晶(地质)
光学显微镜
透射电子显微镜
铸造
变形(气象学)
扫描电子显微镜
粒度
复合材料
纳米技术
古生物学
生物
作者
Jinshui Chen,Junfeng Wang,Xiangpeng Xiao,Hang Wang,Huiming Chen
标识
DOI:10.1016/j.msea.2019.04.053
摘要
The mechanical properties and microstructure transformation of CuCrZr alloys obtained by upward continuous casting with varying Zr contents were studied by optical microscopy (OM), electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM) after cold drawing with different strain and heat treatment. The results show that good strength can be obtained through cold drawing with suitable heat treatment. The peak tensile strength can achieve 587.8 MPa and the peak yield strength can reach 499.6 MPa; The difference of yield strength of CuCrZr alloy during cold drawing deformation becomes larger with the increase of Zr element content when the strain gradually improves; The increase of the Zr element will promote the recrystallization of the alloy at aging after cold drawing, refining the crystal grains. It contributes about 70% of the increase in strength, act as a fine grain strengthening effect, increasing the strength of the alloy.
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