PET纤维-甲胺系统的化学应力开裂被归结为一种高聚物断裂破坏现象。
The chemical stress cracking of PET fiber-methylamine system is considered to be a fracture phenomenon of polymers.
该文归纳、分析了木材化学应力松弛的测定基础、实验装置及研究现状 。
Theoretical basis, testing equipment, and current topics of chemical stress relaxation of wood are discussed in this review.
作者从高聚物断裂的微观机理解释了所有实验结果并提出PET -甲胺系统化学应力开裂机理。
Authors inter-prete all experimental results of the work with the molecular mechanism of fracture behaviour of polymers and propose the mechanism of chemical stress cracking of PET-methylamine system.
应用综合分析方法研究了聚碳酸酯(PC)薄壁件分层开裂及其起因，发现了分层的化学应力开裂机制。
Delamination and cause of polycarbonate (PC) thin-wall component were studied by comprehensive analysis methods and chemical stress cracking mechanism of PC delamination was found.
对受影响的后代注射类似多巴胺的化学药剂引起了应激激素的分泌两提高，说明老鼠的应力控制系统被损坏了。
Exposing the affected offspring to a chemical that mimics dopamine induced elevated secretion of a stress hormone, suggesting that the rats' stress control systems had been impaired.
由循环应力和化学腐蚀同时作用导致的一类失效。
Corrosion fatigue. A type of failure that results from the simultaneous action of a cyclic stress and chemical attack.
应力了很多，今天我的第一篇论文是化学。
研究结果表明，碳纤维的损伤包括了化学损伤、高温损伤和热应力物理损伤。
The results show that the damage of carbon fibers includes chemical damage, heat damage and physical damage of thermal stress.
研究了直流等离子体化学汽相沉积（CVD）法合成的金刚石膜内应力随甲烷浓度、沉积温度的变化关系。
The internal stress in diamond thin films deposited by DC plasma CVD was studied as a function of methane concentration and deposited temperature.
采用递增应力流变学方法将弹性、塑性、断裂变形结合并与流体和化学耦合起来。
The elastic strain, plastic strain and fracturing are integrated and coupled with fluid and chemistry using an incremental stress rheological approach.
采用宏、微观、扫描电镜、化学分析、应力测定及计算等方法对断裂螺母进行了分析。
The fracture analysis was made by means of microstructure, macrostructure, SEM, chemical composition, stress measurement and calculation.
管路所用材料的材质状况(化学成分、显微组织等)不佳，是造成应力腐蚀破坏的主要因素。
The low quality of pipe material (chemical component, microstructure) is the main reason to result in stress corrosion damage.
其中热-化学模型可采用完全耦合的形式求解，而应力模型则可采用单向耦合的形式求解。
The model was numerically solved by FEM, fully coupled for thermal-chemical model and one way coupled for the stress model.
本工作通过电化学，恒载荷应力腐蚀和再钝化试验，对碳钢在碱溶液中的应力腐蚀破裂进行了研究。
The stress corrosion cracking(SCC) of carbon steels in aqueous alkali was studied by electrochemical technique, stress corrosion test under constant load and repassivation test.
耐火材料损坏除了化学侵蚀以外，还有热机械应力。
Thermal and mechanical stress besides chemical corrosion is the main wear mechanism of refractories.
介绍了邢钢预应力SWRH82B盘条的生产工艺，盘条的化学成分、力学性能、显微组织等均达到了标准要求。
The production process of pre-stressed SWRH82B wire bar in Xing Steel is introduced, its chemical composition, mechanical properties and micro-structure all meet the standard.
研究表明，气体地球化学的这几项指标能确切地反映地壳深处应力变化的信息。
The studies show that the indicators of geochemical gas changes could reflect the information of stress in the deep crust.
结果表明，导柱材料化学成分超标，同时存在严重的铸造缺陷组织，增加了材料应力集中的程度，降低了材料的力学性能，从而导致导柱零件在淬火时产生开裂。
The results showed that the stress concentration is increased, the mechnical property is lowed, the chemical compositions overran and the serious cast defects is existed in the plunger.
对于裂隙岩体来说，化学溶液的腐蚀则主要体现在断裂应力的减小和裂隙的增大。
For fracture rock, the fracture stress will be reduced and the crack length will increase under the chemical corrosion.
用慢应变速率拉伸(SSRT)技术研究了7075铝合金在应力腐蚀过程中的力学与电化学交互作用。
The interaction between mechanics and electrochemistry during the stress corrosion cracking (SCC) of 7075 aluminum alloy was studied using slow strain rate tension (SSRT) technique.
裂隙中的粘土充填物在地下水物理、化学的作用下，力学性能不断弱化，使岩体裂隙的临界应力强度因子不断降低，裂隙扩展具有时间效应，导致底板裂隙的滞后突水。
The mechanic capability of the crevice clay filling falls because the physiology and chemistry of the groundwater, which lags the crevice spreading and leads to the lagging floor water bursting.
钢的化学成分、强度、服役应力和预应变处理显著影响其微塑性服役行为。
The chemical composition, strength, cyclic stress and pre-cyclic-strain have a remarkable influence on the micro-plasticity behavior of the steels.
地震前地壳中的应力变化会引起在一定区域范围内的地球物理场与地球化学场变化。
The stress variations in the crust prior to earthquake can cause variations of geophysical and geochemical fields in the region near the epicenter.
传质速率及壁面剪切应力的测量采用电化学方法。
Mass transfer rates and wall shear stresses are measured by the electrochemical method.
采用切环测量法及X射线应力分析方法对化学气相沉积制备的开裂钨管进行测量与分析。
Cracked tungsten tubes prepared by chemical vapor deposition were investigated by ring machine cutting method and X? Ray stress analysis system.
化学蚀刻是消除铍材机加应力的有效方法。
The chemical etching was an effective way for relieving of machining residual stress.
该气田腐蚀主要有硫化物应力腐蚀和酸性气体的电化学失重腐蚀两类。
In this gas field, there are mainly two kinds of corrosion-sulfide stress corrosion and electrochemical weightlessness corrosion by sour gas.
提高金刚石薄膜与铜衬底附着力的关键是减小沉积结束后降温过程中产生的膜基热应力和提高膜基间化学键结合。
Reducing the thermal stress between film and substrate during the descent temperature process and improving chemical bonds combination is a key problem to enhance thee adhesion.
提高金刚石薄膜与铜衬底附着力的关键是减小沉积结束后降温过程中产生的膜基热应力和提高膜基间化学键结合。
Reducing the thermal stress between film and substrate during the descent temperature process and improving chemical bonds combination is a key problem to enhance thee adhesion.
应用推荐