Thus, requirements of steel with high elastic limit, high fatigue strength and high impact toughness and plasticity.
因此，要求钢具有高的弹性极限，高的疲劳强度以及高的冲击韧性和塑性。
The high strength, high toughness, high fatigue strength, and unique wear resistance ADI offer design engineer great potential for casting design.
ADI的高强度、高韧性、高疲劳强度及优越的耐磨性为设计工程师提供了更具潜力的铸件材料。
This kind of crankshaft possesses very good wear-resistance and high fatigue strength which is higher by a factor of 1.40 than that of advanced technologies informed.
这种曲轴具有很好的耐磨性和很高的疲劳强度，比已报道的较高数据还高出40%以上。
Carbon steel has high and low temperature strength is very tough and has excellent fatigue strength.
碳钢具有高温和低温强度，具有很高的韧度和优异的抗疲劳强度。
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。
The formulae for calculating SIF and fatigue life of surface crack at weld toe of the high-strength steel under the combination stresses were given out.
给出了高强钢焊趾表面裂纹在压弯组合应力下应力强度因子及其疲劳寿命计算式。
The formulae for calculating SIF and fatigue life of surface crack at weld toe of the high-strength steel under the combination stresses have been presented.
给出高强钢焊趾表面裂纹在压弯组合应力下应力强度因子及其疲劳寿命计算式。
Compared with the forging die steel, casting forging die steel although toughness is low, but high strength, red hardness is good, with low notch sensitivity and high resistance to thermal fatigue.
与锻造模具钢相比，铸造热锻模具钢虽然韧性低，但强度高、红硬性好，具有较低的缺口敏感性和较高的抗热疲劳性。
This paper analyses the relation between fatigue life and imposed preload of high strength bolt usually used in construction engineering and locates optimum working range to apply preload to it.
分析了工程上常用的高强度螺栓的疲劳寿命与施加的预紧力之间的关系，找出施加预紧力的最佳范围。
The factor of life scatter is used for depicting the dispersibility of fatigue strength in low cycle fatigue, but in high cycle fatigue is the fatigue strength reduction factor.
低周疲劳常采用寿命分散系数描述结构疲劳强度的固有分散性，而高周疲劳采用疲劳强度减缩系数来描述。
To meet the development of steels used for the large engineering machinery, fatigue crack growth rates of a high strength low alloy steel HG80 and welded joint were investigated.
为适应大型工程机械焊接用钢需要，对低合金高强度钢HG80及其焊接接头的疲劳裂纹扩展速率进行了研究。
Roll collar, needing not only high strength and wear resistance but also thermal fatigue resistance and corrosion resistance, was one of the components which were damaged easily in rolling process.
轧辊不仅需要具备高强度和高耐磨性，还必须具有高的抗热疲劳强度和耐腐蚀性以及抗氧化性，是轧钢行业的主要消耗件之一。
After repeated fatigue tests, it proves very high toughness and strength, greatly improve the overall performance of the equipment.
经反复疲劳测试，韧性及强度非常高，大大提高了设备的整体性能。
The result of welding experiment and production practice show that the welded rear-axle housing have quality stability and high precision and fatigue strength.
通过试验和生产验证，所焊接的后桥壳体精度高、抗疲劳性能好、质量稳定。
A new compound treating method of improving fatigue performance of high-strength welded joint is that firstly treated the welded toe by TIG-dressing and then performed ultrasonic peening.
提出一种对接头焊趾先进行一遍tig熔修处理，然后再实施超声波冲击的复合处理新方法用来改善焊接接头的疲劳性能。
The residual strength is usually used to measure the fatigue failure, but so much work is needed to do and the cost is high and only one data is acquired for one test-piece.
剩余强度来度量疲劳损伤破坏准则清楚明了，但实验工作量大、费用高，并且一个试件只能得到一个数据；
The thesis researched the wheelset and axle-box fatigue strength of CRH_2 trailer and expected that the results could be valuable for establishing the standards of high-speed EMU.
论文以CRH_2动车组拖车轮对和轴箱为研究对象，进行疲劳强度计算分析，以期望为我国高速动车组标准的制定提供依据。
The accession of vanadium has shown a great effect on improvement of coordination between strength and ductility, sensitivity to strain aging and high strain and low cycle fatigue property.
微合金元素钒的加入有利于钢筋强度与塑性综合提高，降低钢筋应变时效敏感性，提高钢筋高应变低周疲劳性能。
BONTAO HMCG (high Modulus Carbon Graphite) means high sensitivity, high strength and high fatigue proof capabilities of the rod.
趣道hmcg高模数碳纤维，使竿体具有高敏感性和高强度及抗疲劳性。
To forecast fatigue strength or fatigue life of the bogie frame of a high-speed train effectively, a method for fatigue strength forecasting based on tested spectrum loads was proposed.
为了有效地预测高速列车转向架构架的疲劳强度或寿命，提出了一种基于试验谱载荷的疲劳强度预测方法。
The thermal fatigue resistance mainly depends on the high temperature yield strength and will become maximum, if the strength, plasticity and cycle thermal stability are in an adequate combination.
热疲劳抗力主要取决于材料的高温屈服强度，在强度、塑性及循环热稳定性取得适当配合时最大。
There are some factors which influence the characteristics of initiation and propagation of stress corrosion cracking and corrosion fatigue cracking in high-strength steel in a watery environment.
影响高强度钢在水介质中的应力腐蚀和腐蚀疲劳裂缝萌生和扩展特性的因素甚多。
High bending fatigue strength and contact fatigue strength are needed for heavy duty gear steels.
齿轮钢要求具有高的弯曲疲劳强度和接触疲劳强度。
Fatigue of grid structure with bolt-sphere joints mainly behaves fatigue in joints, the critical of which is fatigue of high strength bolt.
螺栓球节点网架的疲劳主要是节点的疲劳，而节点的疲劳关键是高强螺栓的疲劳。
Through laboratory test, the fatigue property of different high bending strength pavement concrete is studied, which is contrasted with different concrete under the same stress level and load.
通过室内试验研究了不同种类高抗折强度路面混凝土的疲劳性能，并在相同应力水平以及相同荷载作用下与不同类型混凝土的疲劳性能进行了对比分析。
The studies were carried out of the test of fatigue crack growth rate and relative to the microscopic morphology of fracture surface in certain high-strength steels.
本文用宏观和微观方法测量了几种高强度钢的疲劳裂纹扩展速率，用金相和断口复型法观察了疲劳断口的微观形态以及与显微组织的关系。
Features: High strength, high modulus, low extensibility, good anti-fatigue and anti-tearing performance. resistant to high-temperature track, delaying and decreasing crack reflection.
特点：高强度、模量，低延伸率、疲劳开裂，耐高温车辙，延缓减少反射裂缝。
It has been shown that the high cycle and the low cycle fatigue strength can be obviously improved by shot peening.
结果指出，喷丸引起表面形变层内的上述变化，能够有效地提高粉末合金高温下的高周和低周疲劳性能。
It has been shown that the high cycle and the low cycle fatigue strength can be obviously improved by shot peening.
结果指出，喷丸引起表面形变层内的上述变化，能够有效地提高粉末合金高温下的高周和低周疲劳性能。
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