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模拟热循环
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  “模拟热循环”译为未确定词的双语例句
     It is investigated in this paper that weldability of the 40MnV(Ti)microalloyed non-quenched and tempered steel,by such as the slit type cracking test,the hot tensile test,the synthet-ic weld thermal cycle test and the welded joint performance test.
     用斜Y型坡口焊接裂纹试验、热拉伸试验、模拟热循环试验、焊接接头试验等方法,研究了40MnV(Ti)微合金非调质钢的焊接住。
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     Microstructure and properties of HAZ in an Ultr-low Carbon Bainitic(ULCB)steel were investigated by welding simulation on a Gleeble-1500 thermal simulator.
     用Gleeble-1500热模拟机研究了超低碳贝氏体(ULCB)钢,在不同焊接模拟热循环条件下HAZ的组织与性能。
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     The test results showed a significant influence of peak temperature on the toughness of simulated HAZ.
     试验结果表明,模拟热循环峰值温度对HQ 100热影响区韧性有明显影响。
短句来源
     As the peak temperature of thermal simulation, which was higher than Ac3, increased, the prior austenite grain size and the martensite lath size increased, and consequently the impact toughness depressed.
     模拟热循环的峰温高于Ac_3时,随着峰温的提高,奥氏体晶粒明显长大,马氏体板条尺寸也相应增大,因此冲击韧性相应下降。
短句来源
     When the steels thermal-simulated to the peak temperatures below Ac3, the well-performed precipitation of carbides from the martensite matrix occured, which could soften the matrix and therefore increase the ductility.
     模拟热循环的峰温低于Ac_3时,高温下马氏体板条内的碳进一步析出,基体软化,塑性提高;
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     HEAT TRANSFER MATHEMATICAL MODELING OF LADLE IN PRODUCTION CYCLE
     钢包热循环过程热状态的数学模拟
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     Simulation of distillation process
     精馏过程的模拟
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     Statistical Simulation
     统计模拟
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     Study on the Simulation Formula of Welding Thermal Cycles at Weld Bead Boundaries
     焊缝熔合区焊接热循环模拟计算公式的研究
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  simulated thermal cycles
The effect of reheating by following passes on the hydrogen embrittlement of MAG weld metal for HT780 class steels has been investigated by using specimens subjected to simulated thermal cycles.
      
Effect of simulated thermal cycles on the microstructure of the heat-affected zone in HSLA-80 and HSLA-100 steel plates
      
Effect of simulated thermal cycles on the microstructure of the heat-affected zone in HSLA-80 and HSLA-100 steel plates
      
After equipment repairs, three simulated thermal cycles were conducted without damage to the insulation.
      


An overall study on simulated and real HAZ toughness and microstructures of HQ100 steel was carried out. Imptant test, longitudinal varistraint cracking lest and T-type reheat cracking test were also utilized to evaluate the cracking susceptibility. The test results showed a significant influence of peak temperature on the toughness of simulated HAZ. The higher the peak temperature, the lower the toughness would be. A certain effect of the cooling time from 800℃ to 500℃ on toughness was also observed. The optimum...

An overall study on simulated and real HAZ toughness and microstructures of HQ100 steel was carried out. Imptant test, longitudinal varistraint cracking lest and T-type reheat cracking test were also utilized to evaluate the cracking susceptibility. The test results showed a significant influence of peak temperature on the toughness of simulated HAZ. The higher the peak temperature, the lower the toughness would be. A certain effect of the cooling time from 800℃ to 500℃ on toughness was also observed. The optimum toughness of overheated HAZ was obtained only when the cooling time from 800℃ to 500℃ was limited about 10 seconds. The same tendency of the peak temperature effect on real HAZ toughness could also be found, but the toughness of the latter was about twice that of the former. It is considered that the above-mentioned may be attributed to the large differences in microstructure and prior austenite grain size. It is also demonstrated that HQ100 steel has good resistance to hot cracking and reheat cracking. It also shows lower cold cracking susceptibility, which can be avoided as long as the welding conditions are properly controlled e. g. electrode-baking preheating and interpass temperature not lower than 130℃.

本文研究了HQ 100钢模拟及实际焊接热影响区各部位的韧性及组织变化,并用插销试验、纵向可调拘束裂纹试验和T型坡口再热裂纹试验对HQ 100钢的裂纹敏感性进行了评定。试验结果表明,模拟热循环峰值温度对HQ 100热影响区韧性有明显影响。随峰值温度升高,冲击韧性下降。Δt 8/5对韧性也有一定影响,当Δt 8/5为10 s时,过热区韧性最佳。实际热影响区峰值温度对韧性的影响也具有同样的规律性,但其韧性比模拟热影响区高一倍左右。组织和晶粒度的不同是造成上述变化的重要原因。抗裂性试验结果表明,HQ 100钢具有良好的抗热裂纹,再热裂纹性能。冷裂敏感性也较低,只要严格控制焊条烘干条件,预热和层温不低于130℃,便不会产生冷裂纹。

r By using simulated weld thermal cycle tests, the variations of HAZ Charpy impact toughness of a Cr-Al steel heated to different peak temperatures were determined. The fractographic appearance, metallographic microstructure' prior austenite grain size and precipitation behavior of the simulated HAZ were also observed and identified. The results showed that the HAZ impact toughness decreased with the increase in peak temperature and hence the fractographic appearance changed from dimple pattern to cleavage or...

r By using simulated weld thermal cycle tests, the variations of HAZ Charpy impact toughness of a Cr-Al steel heated to different peak temperatures were determined. The fractographic appearance, metallographic microstructure' prior austenite grain size and precipitation behavior of the simulated HAZ were also observed and identified. The results showed that the HAZ impact toughness decreased with the increase in peak temperature and hence the fractographic appearance changed from dimple pattern to cleavage or quasi-cleavage pattern. As the peak temperature of thermal simulation, which was higher than Ac3, increased, the prior austenite grain size and the martensite lath size increased, and consequently the impact toughness depressed. When the steels thermal-simulated to the peak temperatures below Ac3, the well-performed precipitation of carbides from the martensite matrix occured, which could soften the matrix and therefore increase the ductility. Furthermore, the curvature of martensite lath boundaries and the aggregation and globurization of carbides are considered to be responsible for the improvement of HAZ impact toughness.

本文采用模拟焊接热循环试验方法,测定了不同峰值温度下Cr-Al钢冲击韧性的变化,并对各峰温下的断口形貌、金相组织、晶粒度及析出物等进行了观察和鉴定。结果表明,随着峰值温度的提高,冲击韧性下降,断口形貌由韧窝状变成解理或准解理状。模拟热循环的峰温高于Ac_3时,随着峰温的提高,奥氏体晶粒明显长大,马氏体板条尺寸也相应增大,因此冲击韧性相应下降。模拟热循环的峰温低于Ac_3时,高温下马氏体板条内的碳进一步析出,基体软化,塑性提高;马氏体板条变得弯曲,碳化物聚集成球状,致使冲击韧性明显提高。

It is investigated in this paper that weldability of the 40MnV(Ti)microalloyed non-quenched and tempered steel,by such as the slit type cracking test,the hot tensile test,the synthet-ic weld thermal cycle test and the welded joint performance test.It is shown that 40MnV(Ti) steelhas good resitance to cold cracking and liquation cracking,there isn't embrittlement in HAZ. Thewelded joint compared with base metal is higher in strength and in absorbed energy.

用斜Y型坡口焊接裂纹试验、热拉伸试验、模拟热循环试验、焊接接头试验等方法,研究了40MnV(Ti)微合金非调质钢的焊接住。试验结果表明,40MnV(Ti)钢具有良好的抗冷裂性和抗液化裂纹的能力,HAZ没有明显的脆化倾向,焊接接头与母材相比具有较高的强度和韧性。

 
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