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为了准确地检验高碳钢盘条晶粒度大小,分别选用直接侵蚀法和直接淬硬法进行比较。结果表明,直接侵蚀法显示的是珠光体团的大小,而直接淬硬法显示的是原奥氏体晶粒的大小,直接淬硬法较直接侵蚀法显示的晶界清晰,评定的结果真实可信。综合比较建议采用直接淬硬法进行仲裁检测高碳钢盘条原奥氏体晶粒度。
In order to accurately test the grain size of high carbon steel wire rod, were selected direct erosion method and direct quenching method for comparison. The results show that the direct erosive method shows the size of the pearlite group, while the direct quenching method shows the size of the original austenite grain, the grain boundary shown by the direct hardening method is more clear than the direct erosive method, and the result of the evaluation is true Credible A comprehensive comparison of the proposed direct quenching method for arbitration detection of high-carbon steel wire rod austenitic grain size.