The experimental results show that the coldworked holes significantly extend the fatigue life of ultra-high strength steel.
试验结果表明，孔冷挤压显著提高两种超高强度钢的疲劳飞行寿命。
Aiming at these problems, taking D406A steel as an example, this paper systematically studied the fracture behavior of the ultra-high strength steel and it's welded joint.
针对这两种现象，本文以D406A钢为例，系统地研究了超高强度钢及其焊接接头的断裂行为。
Meta bainite is also a desirable matrix for development of high strength ultra grade steel.
准贝氏体是高强度超级钢的一种理想的基体组织。
Phase transformation behavior of ultra high strength structural ship steel in controlled cooling after deformation are studied by mean of hot-simulation technology.
利用热模拟技术研究了超高强度船板钢形变后控冷过程中相变行为。
In the present paper, both the process and new grain boundary of austenite recrystallized of 300m ultra high strength steel have been Oserved in-situ by means of high-temperature metalloscope and tem.
运用高温金相和TEM方法，对超高强度钢300m的奥氏体相变再结晶过程和新晶界进行了定位观察。
In this paper, the shear behavior of a new type of high-strength cold-formed ultra-thin-wall steel wall frame was analyzed mainly by the finite element method.
采用了有限元法对冷弯薄壁型钢单榀墙架结构的进行受剪性能的分析。
The invention discloses a method for preparing high-strength and high-plasticity ultra-fine grained ferrite and nano-carbide low-carbon steel.
本发明公开一种高强度高塑性超细晶铁素体和纳米碳化物低碳钢制备方法。
The invention discloses a method for preparing high-strength and high-plasticity ultra-fine grained ferrite and nano-carbide low-carbon steel.
本发明公开一种高强度高塑性超细晶铁素体和纳米碳化物低碳钢制备方法。
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