基于二维线性断裂力学理论，提出了一种表面淬火齿轮的弯曲疲劳寿命预测方法，并开发了相应的计算程序。
A method for predicting the bending fatigue life of a surface quenched gear is proposed based on two-dimensional linear fracture mechanics and a computer program is developed.
结果表明材料选择错误、淬火温度不当，以及中频淬火区域过小是导致传动轴断裂的原因。
The results indicate that the mistake choice of material, unreasonable quench temperature and too small region of MF quenching are the cause of transmission shaft fracture.
结果表明，激光淬火处理基体可以提高镀铬层的断裂韧性。
The results show that the fracture toughness of Cr-coatings is improved by laser quenching substrate.
结果表明，高温淬火和分级淬火可使应力腐蚀断裂抚力k _ (ISCC)值得到明显提高。
Results show that both high temperature quenching and step quenching can apparently increase the stress corrosion cracking resistance K_ (ISCC).
结果表明，淬火过热和磨削加工不当，致使零件中形成了许多淬火裂纹和磨削裂纹，最终导致动凸轮断裂。
It was concluded that over heated quenching and improper grinding caused quenching and grinding cracks, leading to fracture failure of translation CAM.
严重的碳化物带状偏析，使拉刀产生局部淬火过热和回火不足，造成内应力急剧增高，最终导致拉刀断裂。
It was found that the broach was locally overheated due to band segregation of carbide, and under-tempered. These factors caused fracture of broach as a result of high internal stress.
研究了在不同等温淬火温度热处理后高硅铸钢的显微组织与残余奥氏体量和材料断裂韧性间的关系。
The influence of austempering treatment on the microstructure, retained austenite and fracture toughness of high silicon cast steel has been studied.
即叶轮断裂是由于锻造加热时温度控制不好导致过热，在随后的淬火工序中又因加热温度过低，组织固溶强化效果差等综合原因所致。
The results show that the wheel hub cracking during radial impact testing was caused by excessive content of magnesium in the alloy as well as the overheating of the alloy during the solution process.
结果表明：螺钉发生断裂是由于热处理不当引起的淬火裂纹扩展所致，并提供有效的改进措施，解决了螺钉断裂问题。
The results show that the screw breakage is due to quenching crack from improper heat treatment. The effective improvement measures to solve the problem of screw breakage are provided.
高温形变淬火显著改善烧结钢和粉末锻钢的延性和断裂韧性。
HTMT significantly improves the ductility and fracture toughness of sintered steel and powder forging steel.
高温形变淬火显著改善烧结钢和粉末锻钢的延性和断裂韧性。
HTMT significantly improves the ductility and fracture toughness of sintered steel and powder forging steel.
应用推荐