查询词典 fatigue of metal

In this paper, the fatigue damage of eutectoid structure in welded metal has been also studied for the first time.

位错密度随载荷次数的增加形成了位错的纠结而构成了高位密度条带及低位错密度区。

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Fatigue Property of Metal Materials and Shot Peening Technology .

刘锁编著。金属材料的疲劳性能与喷丸强化工艺。

In this paper, the strength theory is adopted to analyze the stress of the pressure component of boiler, and the calculation method of metal fatigue and creep is adopted to estimate the life loss of the boiler. Meanwhile, the short-cut calculation method is put forward which can meet the requirement of on-line monitoring. On the basis of above, the on-line monitoring and management system of boiler life is developed.

本文采用强度理论和疲劳、蠕变寿命计算方法，分别对电站锅炉的炉外、炉内主要承压部件进行了应力分析和寿命计算，并提出满足在线监测要求的简化计算方法，在此基础上，开发了锅炉承压部件的寿命在线监测和管理系统。

Laser shock peening is a well-known method for extending the fatigue life of metal components by introducing near-surface compressive residual stress.

激光冲击硬化通过在材料的近表面产生残余压应力来提高材料的表面硬度和抗疲劳寿命。

Strength is the ability of a metal to as tensile strength,bending strength,compressive strength,torsional strength,shear strength and fatigue strength.

强度对于金属而言的能力就可以说是拉伸强度，弯曲强度，抗压强度，扭转强度，剪切强度和抗疲劳强度。

TCK Wire Rope Non-destructive Inspection System adopts the TCK unique technology of "weak magnetism",by means of quantitative inspection on loss rate of effective cross-sectional areal of actual bearing metal,arising from wire rope's internal or external breakages,abrasion,corrosion and fatigue and other defects by use of TCK wire rope defectoscope

TCK钢丝绳探伤仪采用本公司独创的&弱磁检测&技术，以国际公认的钢丝绳安全承载能力的校核原则为检测和判定依据，通过对在线钢丝绳内外部断丝、磨损、锈蚀、疲劳等各种损伤导致的实际承载金属有效截面积损失率的定量检测，正确评估被测钢丝绳的剩余承载能力和使用寿命，为用户提供符合标准和规范要求的安全使用与合理更新的科学依据，是有效预防钢丝绳断绳事故、合理降低钢丝绳用绳成本和科学提高钢丝绳运行效率的高科技保障。

Based on the failure analysis of hot roll, this paper optimizedly adjusts alloy system and summarizes the experience of rolling wiresand improves ail processing properties. Then, it analyses the effects on some natural parameters such as alloy transfer coefficient, surfacing layers, welding current and arc voltage etc.. It confirms the fitting ageing technique. Also, it discusses the microscopic structural transformation back and forth ageing and the effects on hardness change of overlaying metal by some alloying elements including C, Cr, V, W, Mo, Ni, Mn, B, Re through OM, SEM and X-ray diffraction analyses. Finally the abrasive resistance, red hardness, thermal fatigue property and anti-high temperature oxidability are investigated in experimentation.

全文在热轧辊失效分析的基础上优化调整合金体系，总结了焊丝轧制的经验，改善各种工艺性能，分析了几个特性参数的影响，确定了适宜的时效工艺，并通过光学显微镜、扫描电镜和X-射线衍射对时效前后的显微组织转变以及部分合金元素如C、Cr、V、W、Mo、Ni、Mn、B、Re对堆焊层硬度变化的影响进行分析，最后通过试验考察了堆焊层金属的耐磨粒磨损性能、红硬性、耐热疲劳性和抗高温氧化性。

MALDINI State Key Laboratory for Fracture and Fatigue of Materials, Institute of Metal Research, Academia Sinica, Shenyang, Istituto Perla Tecnologia dei Materiali, Consiglio Nazionale Delle Ricerche, Italy

中国科学院金属研究所；材料疲劳与断裂国家重点实验室；意大利国家研究委员会特种材料研究所；意大利国家研究委员会特种材料研究所

By means of self-designed test method ,thermal-fatigue resistance and influence factor for surfacing metal of three self-produced flux-cored wires and one solid wire for roller hardfacing were studied deeply.The mechanisms of thermal-fatigue crack initiation and extension were investigated .

通过设计的热疲劳试验方法，对三种自制药芯焊丝和一种国产堆焊轧辊用实心焊丝的耐热疲劳性能及其影响因素进行了深入研究，同时对堆焊金属中热疲劳裂纹形成以及扩展机理做了进一步探讨。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。