Zhu Yanjun, Zhou Xiuwen, Cao Linhong, et al. Preparation and characterization of ultra-thin Ni80Cr20 alloy wire by cold drawing[J]. High Power Laser and Particle Beams, 2014, 26: 022008. doi: 10.3788/HPLPB201426.022008
Citation:
Zhu Yanjun, Zhou Xiuwen, Cao Linhong, et al. Preparation and characterization of ultra-thin Ni80Cr20 alloy wire by cold drawing[J]. High Power Laser and Particle Beams, 2014, 26: 022008. doi: 10.3788/HPLPB201426.022008
Zhu Yanjun, Zhou Xiuwen, Cao Linhong, et al. Preparation and characterization of ultra-thin Ni80Cr20 alloy wire by cold drawing[J]. High Power Laser and Particle Beams, 2014, 26: 022008. doi: 10.3788/HPLPB201426.022008
Citation:
Zhu Yanjun, Zhou Xiuwen, Cao Linhong, et al. Preparation and characterization of ultra-thin Ni80Cr20 alloy wire by cold drawing[J]. High Power Laser and Particle Beams, 2014, 26: 022008. doi: 10.3788/HPLPB201426.022008
State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials,Southwest University of Science and Technology,Mianyang 621010,China;
2.
Research Center of Laser Fusion,CAEP,Mianyang 621900,China;
3.
Joint Laboratory for Extreme Conditions Matter Properties,Southwest University of Science and Technology and Research Center of Laser Fusion,CAEP,Mianyang 621010,China
The preparation process of ultrafine ultra-thin Ni80Cr20 alloy wire was studied by cold drawing. The property of NiCr alloy wire was characterized by SEM, XRD and tensile tester. The results show that the optimal electrolyte concentration and time were 0.05 mol/L and 3 s in the process of electrolytic corrosion, respectively. NiCr alloy wire with a smooth surface, precise dimensions and the diameter range of 24.54 m was obtained. After drawing, the grain size decreased, and the grain size grew up after annealing. Due to work harding appearing in the drawing process, the elongation decreased from 16% to 1.88%. The fracture strength decreases and the elongation and plasticity increases after annealing. The fracture strength of wire annealed in N2 is greater than in vacuum. On the contrary, the elongation of wire annealed in N2 is less than in vacuum.
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