The effect of rare earth on impact fatigue property of cast semi steel was studied.
研究了稀土元素对半钢冲击疲劳性能的影响。
The effect of rare earth on impact fatigue property of cast semi steel was studied.
研究了稀土及热处理对半钢组织中碳化物的形貌与力学性能的影响。
The impact fatigue property of cemented carbide was studied by impact bending test in this paper.
采用冲击弯曲试验研究了硬质合金的冲击疲劳性能。
By our new way of double aging, on which we have done research since 2002, the impact fatigue life can be prolonged by 35.
在抗张强度没有明显降低的条件下，新创立的双时效比正常时效的冲击疲劳寿命与动态断裂韧性分别延长和提高了35 。
The effect of re modification and heat treatment on impact fatigue property of low chromium cast semi steel was studied by means of impact fatigue test.
利用冲击疲劳试验，研究了稀土变质及热处理对低铬半钢抗冲击疲劳性能的影响。
Common measure and experiment, impact fatigue experiment with large 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。
The micro morphology of low carbon steel cyclic deformed with low cycle impact fatigue was investigated it was found that the cycle deformation is caused by slipping.
观察了低碳钢在低周冲击疲劳过程中循环形变的显微特征。结果表明：循环形变主要由滑移引起。
The results show that hot-forged cast dies take thermal wear, plastic deformation, thermal fatigue, impact fatigue fracture and brittle fracture as predominant failure patterns.
结果表明，精铸热锻模的主要失效形式为热磨损、塑性变形、热疲劳裂纹、冲击疲劳破断和脆性断裂。
The effect of carbon and chromium content on the impact fatigue resistance and impact abrasion resistance of pearlitic low chromium cast iron has been investigated in this paper.
研究了碳、铬含量对珠光体基体低铬铸铁冲击疲劳抗力及冲击磨损性能的影响。
The results show that the impact fatigue life-time of the specimen will increase by means of high-temperature temper and shot-peening after EDM with the water-base working fluid.
结果表明，采用水基工作液电火花加工，电火花加工后高温回火处理及喷丸强化等措施，都可提高试样的冲击疲劳寿命。
The influence of heating temperature on morphology of eutectic carbide and impact fatigue property of low alloy wear resistant cast iron were studied by OM, SEM and impact fatigue tester.
采用金相、扫描电镜和力学性能分析方法研究了加热温度对含稀土低合金耐磨铸铁冲击韧性的影响。
They speculate that CPAP may impact fatigue in patients with OSA by reducing inflammation, noting that increases in inflammatory markers in OSA patients have been related to elevated fatigue.
他们推测，CPAP可能是通过减少炎症发生来影响阻塞性睡眠呼吸暂停患者的疲劳度，因为他们记录到阻塞性睡眠呼吸暂停患者的炎性标志物的增加与疲劳度的升高具有相关性。
It is indicated that retained austenite in microstructure can inhibit the initiation and propagation of fatigue crack, improve the resistance to impact fatigue and decrease impact fatigue wear.
试验得出，残余奥氏体可阻止疲劳裂纹的萌生和扩展，提高冲击疲劳抗力，降低冲击疲劳磨损。
The experimental results show that adding rare earth into cast semi steel can defer the time of forming fatigue crack, reduce the speed of crack propagating and increase the impact fatigue resistance.
结果表明，稀土能推迟裂纹萌生的时间，降低裂纹扩展速率，提高其冲击疲劳抗力。
While fibromyalgia does not damage the joints or organs, the constant aches and fatigue can have a significant impact on daily life.
虽然纤维肌痛并不会损害关节或器官，但持续的疼痛和疲劳会对日常生活产生严重影响。
MIM fabrication is ideal where near-full density, high impact toughness, fracture toughness, and fatigue and corrosion resistance are required.
MIM制造是理想，要求接近全密度、高冲击韧性、高断裂韧性、耐疲劳和耐腐蚀性。
They are mainly concerned with the tensile and compressive behavior, energy absorption, dynamic impact, failure criterion and constitutive relation, creep, fatigue and fracture of these materials.
这些工作主要讨论了金属泡沫材料的拉伸、压缩、能量吸收、动态冲击、失效准则、本构关系、蠕变、疲劳和断裂等力学性能。
The thought of this paper is to discuss on and analysis to dynamic response of HSMS under impact load, and estimate its mean life based on noted stress fatigue design method.
本文的主导思想是讨沦和分析冲击载荷下螺旋弹簧质量系统的动态响应，并应用名义应力疲劳设计方法估计其平均寿命。
The secondary impact acceleration pulse which is produced by the drop-test can influence the testing parameters and cause fatigue and damage of components.
凸轮式跌落冲击台产生的次冲击能够影响试件的测试参数和性能，并能造成试件的疲劳损伤与失效。
While symptoms like blurred vision or eye fatigue should fade when eyes are rested, there are also concerns about the long-term impact of too much screen time.
尽管在眼睛得到休息后，视力模糊或者视觉疲劳的症状会消失，但人们仍然担心看屏幕太久的长期影响。
The mechanical properties such as fatigue, transverse impact toughness and anisotropic properties of steels treated with Ba-containing alloys are remarkably improved.
经含钡合金处理的钢材力学性能，如疲劳、横向冲击韧性和各向异性可得到显著改善。
The paper points out that reed failures result from the synthetical action of vibrating wear, grain wear, fatigue damage and last, impact action-the most dreadful damage.
文中指出，钢筘的失效是振动磨损、磨粒磨损、疲劳破坏和冲击损坏综合作用的结果，其中冲击损坏的危害作用最大。
On mechanical properties, the strength was raised obviously, fatigue property was unchanged, impact toughness and ductility were reduced.
在性能方面，强度被显著地提高，机械疲劳性能变化不明显，冲击韧性和塑性降低。
In the present study, tensile and repeated impact as well as rotated-bending fatigue tests were carried out.
本研究进行了渗硼试样的拉伸、多次冲击以及旋转弯曲疲劳试验，并与未渗硼试样进行比较。
This paper presents the structural features and characteristics of the radial impact tester, torsional fatigue tester, rotary bending tester and radial load tester used for the tests.
本文介绍了用于该试验的径向冲击试验机、扭转疲劳试验机、旋转弯曲疲劳试验机和径向载荷疲劳试验机的结构形式及性能特点。
Cast steel cooling stave has favorable impact toughness and cyclic-temperature loading fatigue, and it has no thermal resistance of coat and gas gap witch exist in ductile iron cooling stave.
铸钢作为冷却壁的材料具有良好的冲击韧度和耐热疲劳性能，并且结构上完全去除了球墨铸铁冷却壁的防渗碳涂层和冷却水管与本体之间的间隙热阻。
Cast steel cooling stave has favorable impact toughness and cyclic-temperature loading fatigue, and it has no thermal resistance of coat and gas gap witch exist in ductile iron cooling stave.
铸钢作为冷却壁的材料具有良好的冲击韧度和耐热疲劳性能，并且结构上完全去除了球墨铸铁冷却壁的防渗碳涂层和冷却水管与本体之间的间隙热阻。
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