Analysis on the Fracture Causes of GCR15 Wire during Drawing Process
YANG Xiaocai
LI Shuangju
CHEN Min
ZHONG Xueying
LIU Yanxia
Abstract：During the ball drawing process of GCR15 wire revealed cracks and decarburization in Metallographic examination,the cause of wire drawing fracture can be identified on studing conventional spheroidization annealing and isothermal spheroidization annealing.The results show that GCr15 steel spheroidized processd by heating at 790℃,then at 720℃for 5～6 h and cooling to 650℃is the best annealing,and the mechanical properties reach the usage requirements.There aren't non-metallic inclusions and coarse carbide particles by the scanning electron microscopy and energy spectrum analysis on fatigue failure specimens.Isothermal spheroidization annealing has better matrix structure and control effect on decarbonization than conventional annealing.Scanning electron microscopy observation reveals that the carbide particles are spherical and dispersed after isothermal spheroidization annealing,poor carbides spheroidization are the main reason for the fracture during drawing process by conventional spheroidization annealing.
Keywords：GCR15 wireisothermal annealingdecarburized Layercarbonizationspheroidization
Publication Date：2025-02-20
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 25-28 )