The Charpy impact properties of high strength pipeline steel with different microstructure were investigated.
研究了具有不同微观组织类型的高强度管线钢的夏比冲击韧性。
According to empirical equation between the Charpy impact energy and fracture toughness to estimate is common method.
常用的做法是根据管材的冲击韧性与断裂韧性之间的关系式进行估算。
The amount of energy required to fracture the material by a single blow is measured by means of a Charpy impact test.
单次冲击破坏材料所需的能量通过却贝摆锤冲击测试的方法测得。
The following table lists the minimum design temperatures for each pipe size, above which charpy tests are not required.
下表列出了每个管道的最小设计温度，超过它的冲击测试不需要。
The predicted Charpy impact energy from measured and predicted strength, was in good agreements with the measured values.
并分别采用实测与预测的强度值对夏比冲击吸收功进行了预报，预报结果和实测值吻合较好。
Such performances of material as tensile strength, yield strength, Charpy energy and COD fracture toughness are tested in experiment.
针对评价中所需要材料的性能数据，对材料做性能测试，测定出材料的拉伸性能、夏比冲击韧性和断裂韧性（COD值）。
In this paper, the dynamic fracture toughness measuring method for 921a shipbuilding steel is studied by instrumented Charpy impact test.
本文利用示波冲击试验，对船用921A钢动态断裂韧性的测试方法进行了研究。
The changing trend of separation with testing temperature and also the correlation between separation and Charpy Vnotch impact energy have been revealed.
分析了分离裂纹随试验温度的变化规律及其与冲击功的相关性。
By changing the nolch local ion of Charpy impact test specimens studied the effect of nolch location on toughness and cracking process in multi-layer welds.
通过改变焊缝夏比冲击试样的缺口取向，研究了缺口位向对多层焊缝金属韧性及断裂过程的影响。
The Charpy impact properties of high strength pipeline steel with different microstructures have been studied through a series of the instrumented impact tests.
采用示波冲击试验方法研究了具有不同微观组织高强度管线钢的夏比冲击性能。
The Charpy impact test of base metal, weld and heat affected zone of X80 grade pipeline steel of certain factory was conducted, and its effective grain was researched.
对某厂x 80高钢级管线钢母材、焊缝、热影响区进行了夏比冲击韧性试验，对其有效晶粒进行了研究。
CVN(Charpy V-notch) toughness and grain size number of J55 grade oil casings produced by Baotou Iron and Steel Company did not meet the reiative standards in the past.
本文针对包钢原来生产的J55石油套管冲击韧性不足，晶粒粗大的问题开展研究。
A series of notched Charpy bar impact tests were conducted on remolded Lanzhou silt on traditional impacting instrument, with different temperature, impulse and water content.
采用传统冲击试验机对冻结兰州黄土在不同温度、不同冲量和不同含水量全过程条件下进行了有缺口冲击试验研究。
Charpy impact test (V gap) : the specified height of pendulum of the one-time blow to V notched specimens in beam state, test specimen is broken by the impact absorbing energy.
夏比(V型缺口)冲击试验：用规定高度的摆锤对处于简支梁状态的V型缺口试样进行一次性打击，测量试样折断时冲击吸收功的试验。
Oscilloscope Charpy impact curve corresponds well with fractographic characteristic, hardness curve and the microstructures, therefore is the effective toughness analyzing method.
示波冲击曲线与断口形貌和硬度以及组织有良好的对应关系，是韧性分析的有效方法之一。
For the same grain size and hardness in the unembrittled conditions, martensite has lower yield strength higher Charpy fracture energy and lower FATT due to finer mean carbide size.
在同样晶粒度和硬度，不添加杂质的条件下，马氏体有较低的屈服强度、较高的冲击断裂功以及较低的塑脆转变温度，这些都由于较细的平均碳化物尺寸引起。
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。
For Charpy impacts tests, where the results from a set of three specimens do not comply with the requirements, with only one lower value below 70 %, three additional specimens shall be taken.
对夏比摆锤式冲击试验，一组三个试样的试验结果不符合要求，仅一个较低值低于70%，应取三个试样进行附加试验。
Via a series of contrast experiments, the machine's main parameters accorded to the international standard of ISO 14556:2000 (e) "Steel-charpy V-notch impact test - Instrumented test method".
通过一系列对比试验，证明主要指标达到国际标准ISO 14556： 2000 (E)《钢材V型缺口冲击试验——仪器实验方法》的要求。
In the 4th chapter, the BP neural networks is used to study the sample data, thus realize the mapping from absorbing energy of Charpy Experiment to fracture toughness on the basis of probability.
第四章主要是应用神经网络算法学习由数值计算得到的样本，实现了由夏比吸收能量值到断裂韧性值的在概率基础上的映射。
The influence of pre-heating temperature on organization and performance of X80 pipeline steel was investigated by weld thermal simulation technique and the instrumented Charpy impact toughness test.
采用焊接热模拟技术和显微分析方法，研究了回火焊道热处理对X80级管线钢焊接热影响区韧性的影响规律。
The influence of pre-heating temperature on organization and performance of X80 pipeline steel was investigated by weld thermal simulation technique and the instrumented Charpy impact toughness test.
文章分析了自保护药芯焊丝的主要成分及作用，介绍了天津市金桥焊材集团有限公司研制的X80管道钢用自保护药芯焊丝的力学性能试验结果。
The influence of pre-heating temperature on organization and performance of X80 pipeline steel was investigated by weld thermal simulation technique and the instrumented Charpy impact toughness test.
文章分析了自保护药芯焊丝的主要成分及作用，介绍了天津市金桥焊材集团有限公司研制的X80管道钢用自保护药芯焊丝的力学性能试验结果。
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