1、

prefabricating original cracks in refractory specimens for fracture toughness test using high temperature static fatigue method

高温静疲劳法预制耐火材料断裂韧性试件原生裂纹

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2、

Analysis of the Impact Toughness Test and Fracture of Rail Thermit Welding Joints at Low Temperature

低温下铁路钢轨铝热焊缝接头冲击韧性试验与断口分析

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3、

The author used the chevron notched short-rod specimen for fracture toughness test suggested by ISRM in his experiment. The specimen is Kallax gabbro from Sweden with diameter of 71.4mm.

本实验研究采用国际岩石力学学会建议的V型切口短棒岩石断裂韧度试件,岩石为瑞典的卡莱克思(Kallax)辉长岩,试件直径为71.4mm。

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4、

The microstructure, impact toughness are analyzed by using optical microscope and toughness test.

用光学金相显微镜和冲击试验研究了双金属材料的显微组织和冲击韧性.

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5、

a new method of prefabricating original cracks in refractory material specimens for fracture toughness test using high temperature static fatigue technique is presented in this paper.

提出了一种预制耐火材料断裂韧性测试试件原生裂纹的新方法&高温静态疲劳法。

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6、

The test results show that the tensile strength and the impact toughness at low temperature of the welding joint are both slightly lower than that of the base metal.

实验结果表明,焊接接头的抗拉强度和低温冲击韧性都略低于母材值。

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7、

On the basis of MTS 810. 15 universal tester, a set of test installation for plain-strain crack-arrest fracture toughness ( K_ ( ia)) testing was established. The test of K_ ( ia) of natural gas transporting pipes was carried out.

建立起以MTS810.15万能材料试验机为主体的材料止裂韧性试验装置,对石油天然气输送管材进行了平面应变止裂韧性(K(la))测试。

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8、

The influence of temperature on impact toughness increases with increase of impulse, and is quite smaller than the influence of impulse in the range of test temperature.

温度对冲击韧度的影响随冲量的增加而加大。在试验温度范围内温度的影响远远小于冲量对冲击韧度的影响。

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9、

Test and discussion of crack arrest toughness of thin steel plate

薄钢板止裂韧性试验及讨论

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10、

Prediction Between Instrumented Impact Test and Three-Point Bending Fracture Toughness Using Local Approach

基于局部法示波冲击与三点弯曲断裂韧性相互预测

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11、

Room temperature fracture toughness was measured by three-point bending test and the KQ value for the DS condition was much higher than that for the as-cast condition. The maximum fracture toughness was 19.7MPam~ ( 1/ 2).

三点弯曲试验表明,定向凝固后试样的室温断裂韧性也得到了明显的提高,K Q最高达到了19.7MPam~(1/2)。

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12、
13、

Test of performance parameters of KZ type of high toughness rolling mill

KZ型高强度轧机性能参数测试的研究

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14、

The impact test to angle iron at different temperatures showed that the impact energy reduced with the temperature decreased and the rolling process affected the low-temperature toughness greatly in addition to the composition of alloying elements.

在不同温度下的角钢冲击实验结果表明,随着温度的降低,冲击功逐渐降低。除了合金元素的成分对低温韧性的影响外,轧制工艺对低温韧性的影响也很大。

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15、

And research the effect of the steel fiber length, the max coarse aggregate size and specimen size on the fracture toughness of SFRC by contrast test.

并作对比试验,研究钢纤维长度、粗骨料最大粒径以及试件尺寸等对混凝土断裂韧度的影响。

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16、

Meanwhile, the change of microcrack zone due to the stress slackness is studied and some advises for normalized test of determining fracture toughness are presented.

进而研究了因应力松驰引起的微裂区的改变.提出了对混凝土断裂韧性测试中制订标准化试验方法的看法。

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17、

In this paper, by weld thermo-simulation test with different peak temperatures, the variation of HAZ charpy impact toughness of Cr-Al steel was determined.

本研究采用模拟焊接热循环试验方法,测定了Cr-Al钢被加热到不同峰值温度后热影响区冲击韧性的变化。

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19、

By using thermo-simulation, Auger analysis and Charpy V impact test and with observation of the microstructures in which the cleavage crack initiated, the morphology and toughness of the local brittle zone of C-Mn and Cr-Ni-Mo multipass weld metals have been investigated.

以C-Mn,Cr-Ni-Mo手工多层焊缝为研究对象,采用示波冲击,俄歇分析,启裂源组织观察及热模拟实验,对薄弱环节组织的形态,韧性及对焊缝韧性的影响进行了研究。

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20、

This article introduces the full size anti-crack burst test was conducted during the construction of Canadian Alliance Gas Transmitting Pipeline, and the result shows that the actual anti-crack toughness value inosculated to the calculated value from TCM hyperbolic model and Leis modification method in Battelle Research Institute, USA.

本文介绍了加拿大建设Alliance输气管道时进行的全尺寸止裂爆破试验,实验结果表明,实际止裂韧性值与用美国Battelle研究所的TCM双曲线模型和Leis修正方法计算出的预测值相吻合。

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