摘要
研究了微量拉伸预应变对１５ＭｎＶＮ钢初始屈服抗力和疲劳性能的影响。结果表明，微量预应变可使材料的疲劳强度下降，同时也使初始屈服抗力下降。加载方向对预应变后的比例极限影响很小。在供应状态和预应变状态下，材料的理论疲劳极限与比例极限近似相等。
The effect of small tensile plastic prestrain on the initial yielding resistance and fatigue properties of 15MnVN steel is investigatedThe results indicate that the prestrain decreases the fatigue limit and high cycle fatigue life,as well as the initial yielding resistanceThe loading direction has little influence on the proportional limit of the prestrained materialThe theoretical fatigue limit of the steel under both asreceived and prestrained conditions are approximately equal to the proportional limit
出处
《钢铁》
CAS
CSCD
北大核心
1999年第5期55-56,50,共3页
Iron and Steel
