本文对淬火加回火渗碳钢的拉伸一拉伸疲劳断口进行了内裂纹的分析和研究。
Internal fatigue cracks occurred in the fracture of a quenched and tempered carburized steel specimen under tension-tension fatigue loads are discussed in this paper.
含氮奥氏体不锈钢的安全角优于硬度为HRC33.7和HRC30.1的高温回火中碳钢，前者具有较高的抗弹丸倾斜入射的能力。
The safe Angle of nitrogen alloyed austenitic stainless steel is better than high tempered middle carbon steel of HRC33.7 and HRC30.1 in hardness.
油回火钢丝是专门锻炼高碳钢丝，以提供更大的强度和耐磨性，但其耐冲击是有点低比普通钢高碳钢。
Oil tempered wire is specially tempered high carbon steel wire to provide greater strength and abrasion resistance, although its resistance to impact is somewhat lower than regular high carbon steel.
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