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。

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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。

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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。

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Hot-stamped, ultra-high-strength steel for reinforcement of body structure.

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Yet the car's body is 25% stiffer than its predecessor because key parts of the frame--like the center post that supports the car body during side collisions and the roof side rail that connects the sides of the roof--are made of ultra-high-strength steel created through a process called hot stamping.

FORBES: Magazine Article