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- PHASE AND IMPACT FATIGUE STRENGTH OF CARBIDE OF HOT-DEFORMED MEDIUM-CHROMIUM SEMI-STEEL 热变形中铬半钢碳化物的形态及冲击疲劳性能
- impact fatigue strength 冲唬劳强度
- Of gear foot and contact fatigue strength of gear profile. 齿根弯曲疲劳强度,齿面接触疲劳强度。
- Residual stresses in machined layer for HSM impact the working performance and fatigue strength of parts.Also, they are major affecting factors of defects such as deformation and crack. 高速切削加工表面的残余应力的存在，对零件的各种机械性能尤其是疲劳寿命有着显著的影响，它也是产生变形和开裂等工艺缺陷的重要原因。
- A layer of hot-dipped galvanizing causes a considerable reduction in the fatigue strength. 热浸镀锌层引起疲劳强度的显著降低。
- The impact fatigue tests show that the tufftride process has a bad influance on impact fatigue properties of materials. 同时,冲击疲劳试验表明:软氮化处理使冲击疲劳性能劣化,这是因表面硬化层约束了柔软心部,使整体材料的韧性变差的结果。
- The reason of the increase of the impact fatigue life at normalizing and low temperature tempering was discussed. 分析了多冲疲劳裂纹扩展的行为，讨论了正火低温回火提高冲击疲劳的原因。
- The repeated low|energy impact fatigue resistance and abrasiveness of cross rolled 1.85%C | 5.86%Cr medium chromium semi steel have been studied. 通过落球和冲击磨损试验 ;研究了斜轧 1.;85%25C、5
- However, a low fatigue strength detail or a large built-in defect may produce only a single significant crack. 但是，疲劳强度较低的细节部分或较大的内部缺陷可能只产生一条很大的裂纹。
- Gas cylinders. Fatigue strength testing under repeated pressurizing for liquefied or dissolved compressed gases. 气瓶。液化或熔解压缩气体气瓶的反复加压疲劳试验。
- And when shot peening treater, the fatigue strength of the chian will improve 12.3%. 经喷丸处理链条疲劳强度可提高12.;3%25。
- A study has been made of low-cycle impact fatigue behaviours of aluminium and duralumin including cyclic stress-strain behaviour,cyclic hardening(softening) and fatigue life. 报导工业纯铝和硬铝在常规低周疲劳和低周冲击疲劳载荷下的力学行为，包括应力应变回线、循环硬（软）化及疲劳寿命等。
- In view of this, the tranditional fatigue strength condition under nonsymmetrical circulation is incorrect. 由此可知，当前通用的非对称交变应力的疲劳强度条件是不正确的。
- A study has been performed relating to the micromechanisms of cyclic deformation in polycrystalline copper and aluminium under low cycle impact fatigue (LCIF) loading. 对面心立方结构多晶纯铜和纯铝在低周冲击疲劳载荷下循环形变的微观机制进行了研究。
- The scope of the work included connecting strength,tightness and fatigue strength of the expansionjoints. 研究范围包括胀接结构的连接强度，密封即耐压性能，疲劳强度等。
- Common measure and experiment,impact fatigue experiment with l arge energy, revolving experiment at high speed and wear experiment are described in this paper. 对所研制的高速滚子链进行了常规检测与试验、滚子大能量冲击疲劳试验、滚子链高速运转试验和滚子链磨损试验。
- In this paper, the fatigue strength of the peened welde d joints under over loading is studied. 结果表明:经拉伸过载后,超声冲击处理焊接接头的疲劳强度有所下降,但并不十分严重。
- A study has been performed on micromechanisms of cyclic deformation and fatigue damage in pure Zinc and TC4 Titanium alloy under low-cycle impact fatigue (LCIF) loading. 研究了六方金属纯锌和TC4钛合金在低周冲击疲劳载荷下的循环变形和损伤机制。
- The hard second phase, for example martensite, contributed to the superior fatigue strength and higher threshold value. 较硬的第二相，如马氏体，贡献了出众的疲劳强度和较高的开始值。
- As carbon content changing,the impact fatigue resistance and impact abrasion resistance of pearlitic low chromium cast iron is consistent with its relative toughness which... 碳含量变化时，低铬铸铁的冲击疲劳抗力及冲击磨损耐磨性与其相对韧性之间存在良好的一致性；铬含量的增加可改善低铬铸铁的综合性能。
