• Thermal cycle is the most usual and the most efficient screening mode of ESS.

    温度循环是环境应力筛选中最常用、最有效的筛选模式。

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  • The peak temperature of the thermal cycle reduces with the increase of welding speed.

    焊接热循环的峰值温度随焊接速度的增大而降低。

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  • Thermal cycle is an important parameter to influence the mechanical properties of the welded joint.

    焊接热循环对焊接接头的性能影响至关重要。

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  • The microstructures of weld metal and HAZ under different thermal cycle are analyzed correspondingly.

    分析了在不同焊接热循环条件下相应的部分易淬火钢焊缝及热影响区的显微组织。

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  • Weld thermal cycle simulation was used to reproduce the structure in the HAZ of single run and multi-layer welding.

    采用焊接热模拟再现了单道焊和多层焊haz的组织。

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  • If the constrained thermal cycle stopped upon heating, the unloading stress strain curves exhibit a plateau immediately.

    如果在加热过程中停止加热并卸载,则卸载应力-应变曲线立即出现应力平台。

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  • The result show that the microstructure formed after thermal cycle was mainly lath bainite and granular bainite in CGHAZ .

    结果表明:在不同的焊接热循环条件下,焊接粗晶区组织主要是板条贝氏体和粒状贝氏体。

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  • The dissertation showed that PCR chip system has some advantages such as low sample consumption, low power consumption and rapid thermal cycle.

    本论文研究表明,PCR芯片系统具有体积小、功耗低、扩增时间短等优点。

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  • This multilayer structure is then heated and fired in a single thermal cycle to remove any binder materials and sinter, respectively, the fuel cell.

    然后,在一单一热循环中对该多层结构进行加热并燃烧,从而除去任何粘结剂材料;并相应地对该燃料电池进行烧结。

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  • Welding thermal simulation technique is adopted to study the influences of twice thermal cycle on the structure and properties of X80 pipeline steel.

    采用模拟焊接热循环的方法,研究了二次热循环对X80级管线钢焊接热影响区组织和性能的影响。

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  • Welding thermal simulation technique is adopted to study the influences of twice thermal cycle on the structure and properties of X80 pipeline steel.

    通过焊接热模拟试验和冲击韧性试验,研究了不同预热温度对X80级管线钢组织性能的影响。

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  • Further, according to thermal cycle calculated by the finite element method, the thickness of reaction layer was predicted in the case of different heat input.

    进一步,通过有限元数值模拟方法计算了界面不同位置的热循环曲线,进行了不同热输入条件下反应层厚度的预测。

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  • The influences of welding process parameter and twice thermal cycle on the microstructure and properties of X80 pipeline steel are also investigated in this paper.

    本文还研究了焊接工艺参数和二次热循环峰值温度对实验钢x 80组织性能的影响规律。

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  • This harmonization reduces and minimizes the temperature gradient within the cell such that the structure can be uniformly heated and fired during the thermal cycle.

    所述协调使电池内的温度梯 度减小且最小化,结果是所述结构在所述热循环其间能够进行均匀加热和燃烧。

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  • Similarly, the unloading stress-strain curves exhibited a linear elastic response followed by a stress plateau if the constrained thermal cycle stopped upon cooling.

    与之相似,如果在约束态冷却过程中停止冷却并卸载,卸载应力-应变曲线首先呈线弹性关系,然后才出现应力平台。

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  • The results indicated that after machining the stress is re arranged and the residual stress decreases; the effect of thermal cycle stress relief treatment is little.

    结果表明:加工以后使应力重新分布和使残余应力降低或均匀化,冷热循环去应力处理效果很小。

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  • Moreover, it is revealed that the deformation resistance in the thermal cycle process is related to the increase of its tensile stress and the decrease of yield strength.

    研究进一步表明,材料变形的难易程度又与变温循环过程,热疲劳试样拉伸应力的增加和材料屈服强度的降低有关。

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  • Based on the analysis of the real engine's working process, a new model of irreversible thermal cycle for heat engine is proposed by using the finite time thermodynamics.

    在分析实际发动机工作过程的基础上,利用有限时间热力学理论方法,建立了一种新的不可逆热机热力循环模型。

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  • The toughness of weld metal is the highest while the coarse grained region in the HAZ is the lowest because of welding thermal cycle and formation of brittle microstructure.

    试验钢由针状铁素体和少量块状铁素体组成,焊缝为典型的针状铁素体组织,焊接热影响区粗晶区以粒状贝氏体为主。

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  • The results show a certain time thermal cycle can cause the fracture mechanism change. It varies from original pure shear fracture to microvoid coalescence fracture gradually.

    结果表明,一定时间的热循环会造成LF6铝合金焊接接头断裂机理的改变,由未经热循环时的纯剪切型断裂,逐渐过渡成微孔聚集型断裂。

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  • The welding thermal cycle and section dimensions of the welding seam were measured in the condition of the simulated welding process parameters for checking simulation results.

    采用模拟时的焊接工艺参数进行钨极氩弧焊平板对接焊,测定焊接热循环曲线和焊缝截面尺寸,对模拟结果加以验证。

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  • A new type of computer-aided testing and analyzing system for welding thermal cycle is presented in this paper. The system adopts computer technology and data processing methods.

    采用计算机软、硬件技术和数据处理方法,研究和开发了一种新型焊接热循环测试与分析系统。

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  • The results showed that thermal cycle caused residual dimensional changes of the specimens, and with the fiber contents increasing, the extents of dimensional changes decrease obviously.

    研究结果表明,热循环能导致样品的尺寸发生变化。随着纤维体积分数的增加,样品的尺寸变形程度明显降低。

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  • The influence of welding thermal cycle on structure and properties in grain-coarsening region of X80 pipeline steel was investigated by weld thermal simulation technique and the charpy test.

    采用焊接热模拟试验和冲击试验,研究了X80管线钢焊接热循环对粗晶区组织性能的影响。

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  • If the constrained thermal cycle stopped upon cooling while the forward martensitic transformation was in progress, the loading stress strain curves exhibited the stress plateau immediately.

    如果在冷却过程中发生正相变的时候停止冷却并加载,则加载应力-应变曲线只出现应力平台。

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  • The efficiency of a coal-fired thermal plant is typically in the range of 30%-35%. In a combined cycle gas turbine system running on natural gas, the maximum efficiency is in the range 45%-50%.

    烧煤的热电厂的效率通常在30%到50%之间,使用天然气的联合循环燃气轮机系统最大效率在45%到50%之间,而很多专家认为高温燃料电池的效率可达到80%至85%。

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  • La Nina is a natural 3-6-year cycle, and the cold stretch of a periodic thermal oscillation in ocean surface temperatures that occurs throughout the tropical Pacific.

    拉尼娜每隔3到6年发生一次,太平洋热带地区海水温度会随之发生周期性的异常变冷。

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  • La Nina is a natural 3-6-year cycle, and the cold stretch of a periodic thermal oscillation in ocean surface temperatures that occurs throughout the tropical Pacific.

    拉尼娜每隔3到6年发生一次,太平洋热带地区海水温度会随之发生周期性的异常变冷。

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