Structural evolution and drawability in laser dieless drawing of fine nickel wires

    Authors

    Y. G. Li; N. R. Quick;A. Kar

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.

    Keywords

    laser dieless drawing; nickel wire; drawability; grain size; dynamic; recovery; recrystallization; DYNAMIC RECRYSTALLIZATION; PURE NICKEL; DEFORMATION; SUPERPLASTICITY; FRACTURE; CREEP; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering

    Abstract

    Drawability of Nickel 200 wires in laser dieless drawing was investigated. Influencing factors under consideration include the laser power, the heat-treatment state (as-drawn or annealed), and the initial wire diameter. Microstructural evolutions in laser dieless drawing were studied by scanning electron microscopy (SEM). The wires exhibit optimal drawability at an intermediate laser power range corresponding to the wire temperature in the range of 1000-1300 K. The as-drawn precursor wire has better drawability than that of the annealed wire. The drawability decreases as the precursor wire diameter deceases. Microcrystalline structures were found in nickel 200 wires after being laser-drawn from as-drawn precursor wires. These experimental observations are explained using the concepts of dynamic recovery and recrystallization. (C) 2003 Elsevier Science B.V. All rights reserved.

    Journal Title

    Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing

    Volume

    358

    Issue/Number

    1-2

    Publication Date

    1-1-2003

    Document Type

    Article

    Language

    English

    First Page

    59

    Last Page

    70

    WOS Identifier

    WOS:000184845800009

    ISSN

    0921-5093

    Share

    COinS