30CrMnSiNi2A钢的韧脆转变温度的研究

Research on Brittle-toughness Transition Temperature of 30CrMnSiNi2A Steel

用带有微机检索和处理数据的摆锤式冲击试验机测定了30CrMnSiNi2A钢的韧脆转变曲线,提出了判定韧脆转变的判据,解决了一般在超高强度钢中,因总冲击功随试验温度呈连续变化,没有明显的突变点而难于准确判定韧脆转变温度的困难。

The brittle-toughness transition curves of 30CrMnSiNi2A Steel on a Pandulum impact testing machine with computering search and treatment of data. The Criterion of determenation of brittle-toughness transition is raised. It is usually hard to determine the brittle-toughness transition temperature because of continuous change of impact energy with the test temperature without point of sudden change, but this method described in this paper resolved the difficult problem.