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前言武钢试产的不同厚度的热轧10Ti钢板,已在二汽厂进行了几种汽车构件的冲压试验。据反映:此钢强度高,冲压性能好,几种构件的冲压成型完好率为100％,但回弹较大,疲劳性能有疑虑。为此,我们就10Ti钢的力学性质和疲动性能进行了试验研究。并对疲动裂纹扩展速率和高频疲劳的部分试件的断口,进行了电子扫描电镜观察,从宏观力学,疲劳试验和电子金相的综合考查证明:10Ti钢有较好的综合性能,良好的抗疲劳损坏的能力。二汽厂成品试验室对10Ti钢制前横梁与Ns38、09sly、鞍钢10Ti、St52等钢种冲制的前横梁构件进行了台架疲劳试验,证明:在同一试验条件下以W10Ti钢制的前横梁疲劳寿命
Preface Wuhan Iron and Steel trial production of different thickness of hot-rolled 10Ti steel, has been carried out in the second steaming several automotive components stamping test. It reflects: This steel high strength, good punching performance, several components of the stamping of intact rate of 100%, but larger rebound fatigue performance have doubts. To this end, we conducted a pilot study of the mechanical properties and fatigue properties of 10Ti steels. The fracture of fatigue crack growth rate and high-frequency fatigue part of the specimen were observed by electron scanning electron microscopy. From the macroscopic mechanics, fatigue test and the comprehensive examination of the electronic metallography, 10Ti steel has better comprehensive performance, good Anti-fatigue damage ability. FAW Finished Products Laboratory carried out bench fatigue tests on 10Ti steel front crossbeam and front crossbeam components punched with Ns38, 09sly, Ansteel 10Ti, St52 and other steel grades. It was proved that under the same test conditions, the front crossbeam of W10Ti steel Beam fatigue life