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再结晶区     
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  recrystallization region
     The effect of rolling parameters such as 35.0%~52.0% reduction rate in recrystallization region, 60.2%~70.3% reduction rate in non-recrystallization region, cooling rate (20~38 ℃/s) on structure and mechanical properties of 0.06C-0.31Mo V-Nb-Ti-B microalloying steel has been studied by Gleeble thermal simulation machine.
     用Gleeble热模拟试验机研究了0.06C-0.31MoV-Nb-Ti-B微合金化钢再结晶区压下率(35·0%~52·0%)、非再结晶区压下率(60·2%~70·3%)、冷却速度(20~38℃/s)等轧制参数对钢的组织和机械性能的影响。
短句来源
     The continuous cooling transformation behavior and microstructure for a Mn-Cr gear steel were investigated at different deformation temperatures in recrystallization region of austenite using a Gleeble 1500 hot simulator.
     使用Gleeble 1500热模拟实验机研究了Mn-Cr齿轮钢在奥氏体再结晶区不同温度变形后的连续冷却相变行为及相变组织.
短句来源
     This article makes study of the effect of raising reduction amount ( percent reduction ) of 4200mm mill of Wuyang Steel in austenitic complete recrystallization region (high temperature region) on product properties.
     本文研究了提高舞钢4200mm轧机在奥氏体完全再结晶区(高温区)压下率对产品性能的影响.
短句来源
     Grain Variation Characteristic in Complete Recrystallization Region Under Multi-Pass Deformation
     完全再结晶区多道次变形时晶粒的变化
短句来源
     The paper puts emphasis on study of effect of rolling start temperature in non recrystallization region and accumulative reduction ratio on structure and properties so as to find out rational process parameters,to provide basis for refine the grain fo the steel in order to enhance strength and toughness.
     在此着重研究了未再结晶区的开轧温度和累积压下率对组织和性能的影响 ,以求找出合理的工艺参数 ,为细化钢的晶粒提高其强韧性提供了依据。
短句来源
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  recrystallization zone
     By controlled rolling in austenite recrystallization zone at 1 000 ℃ and cooled with 6~10℃/sec after rolled, the fine pearlite with little ferrite in spring steel 60Si2Mn could be obtained, to decrease the decarbonization and obviously increase the impact energy of spring steel.
     弹簧钢 60Si2Mn经奥氏体再结晶区 1 0 0 0℃控轧 ,轧后以 6~ 1 0℃ /s的冷速进行控制冷却 ,可获得细小的珠光体 +少量铁素体组织 ,同时减少了脱碳 ,显著提高了弹簧钢的冲击韧性。
短句来源
     The results indicate that the width of dynamic recrystallization zone of friction welding joint between TC4 Ti alloy and LD10 Al alloy increases under the electromagnetic field.
     结果表明:外加电磁场作用使TC4钛合金与LD10铝合金摩擦焊接头铝合金侧动态再结晶区宽度增大;
短句来源
     The effect of deformation temperature and strain rate on σ ε curves and transformation characteristics of non tempered and quenched steel 30Mn2V during the deformation of austenite at non recrystallization zone had been studied.
     研究了奥氏体未再结晶区 ,形变温度与形变速率对其 σ- ε曲线以及相变特征的影响。
短句来源
     EFFECT OF CONTROLLED ROLLING IN NON RECRYSTALLIZATION ZONE ON MICROSTRUCTURE AND MECHANICAL PROPERTY OF HQ60
     未再结晶区控轧工艺对HQ60钢的显微组织与力学性能的影响
短句来源
     STRUCTURE CHANGE DURING MULTIPASS DEFORMATION IN PARTIAL RECRYSTALLIZATION ZONE OF AUSTENITE
     奥氏体部分再结晶区多道次变形组织变化规律的研究
短句来源
更多       
  recrystallize zone
     The results show that then the workers use controlled rolling in Austenite recrystallize zone and by controlled cooling at 6-10C/s,after rolling for 60Si2Mn steel,the workers may obtain structure of minute ball Peralite plus a little Ferrites,so that strength and toughness of steels can be increased,at the same time reducting decarburization.
     研究表明:60Si_2Mn钢采用奥氏体再结晶区控轧,轧后以6~10℃/s冷却速度控制冷却,可获得球团细小且均匀的珠光体加少量铁素体组织,热轧钢材的强韧性显著提高,同时减少了脱碳。
短句来源
     The results show that then the workers use controlled rolling in Austenite recrystallize zone and by controlled cooling at 6~ 10℃/s,after rolling for 60Si2Mn steel,the workers may obtain structure of minute ball Peralite plus a little Ferrites,so that strength and toughness of steels can be increased,at the same time reducting decarburization.
     研究表明:60 Si_2Mn钢采用奥氏体再结晶区控轧,轧后以6~10℃/s冷却速度控制冷却,可获得球团细小且均匀的珠光体加少量铁素体组织,热轧钢材的强韧性显著提高,同时减少了脱碳。
短句来源
     Taking 60Si2Mn steel for example, this paper had a study of controlled rolling and cooling processes on Si-Mn spring steel. The results indicated that structure of minute ball Peralite with a little Ferrites could be obtained if 60Si2Mn steel was controlledly rolled in Austenite recrystallize zone and controlledly cooled with a speed of 6~10℃/sec after being rolled, that decarbonization was reduced and its hot-rolling performance was remarkably enhanced.
     以60Si_2Mn钢为例,对硅锰弹簧钢进行了控轧控冷研究,结果表明,60Si_2Mn钢经奥氏体再结晶区控轧,轧后以6~10℃/sec的冷速进行控制冷却,可获得球团细小的珠光体加少量铁素体组织,同时减少了脱碳,显著提高了硅猛钢材的热轧性能。
短句来源
  recrystallized zone
     CONTROLLED ROLLING TEST FOR HIGH STRENGTH AND DUCTILITY H-BEAM IN RECRYSTALLIZED ZONE
     高强韧性H型钢的再结晶区控制轧制试验研究
短句来源
     The results shown there were fiber zone, partially recrystallized zone, fine grain zone, coarse grain zone and unequilibrium microstructure zone in the as-welded joint.
     结果表明,接头焊态组织可分母材纤维组织区、部分再结晶区、细晶区、粗晶区及熔核中的非平衡组织区;
短句来源
     Applying the controlled rolling and controlled cooling theory of steel,the authors took simulation rolling of microalloyed H-beam in austenite recrystallized zone using Gleeb-2000,and analyzed the metallographic structure of experimental samples. The affect of heat temperature and rolling pass reduction on final organization and grain size was discussed. Based on the results of simulation test,the reasonable controlled rolling process is worked out for developing high strength and ductility H-beam product.
     应用钢的控制轧制理论,在Gleeble-2000热模拟实验机上进行了H型钢的奥氏体再结晶模拟轧制,并配合必要的金相组织实验,研究了加热温度和再结晶区轧制道次变形量对最终组织及晶粒度的影响规律,为现场生产制订出比较合理的控轧工艺,开发出高强韧性H型钢产品。
短句来源
     This article is specific to Nb-bearing microalloyed steel,simulates the existing production process in Medium Plate Plant in Anyang Iron and Steel Co. Ltd,uses TEM technology,makes a study under laboratory conditions by means of controlled rolling of test specimens through single pass and multiple passes in recrystallized zone and unrecrystallized zone of the metal,explores the effect of controlled rolling and controlled cooling process on precipitation law of secondary phase particles within carbonitride of Nb-bearing steel.
     针对含Nb微合金化钢,模拟安钢中板厂现有生产工艺,利用透射电镜技术,研究在试验室条件下,通过对试样进行单道次及多道次金属再结晶区和未再结晶区的控制轧制,探讨控轧控冷工艺对Nb碳氮化物第二相粒子析出规律的影响,并结合安钢轧制工艺现状,提出建议。
短句来源
     The results show that for two-phase rolling,the structure with mixed crystals is formed in product due to rolling in partially recrystallized zone caused by the effect of rolling piece thickness increment on deformation temperature of non-recrystallized zone,and as the result,the low temperature impact strength of product is reduced.
     研究表明,在采用两阶段轧制时,由于中间坯的厚度较大,从而对未再结晶区的变形温度产生影响,易于产生在部分再结晶区轧制的现象,使钢板中出现混晶现象,从而造成钢板低温冲击值较低。
短句来源

 

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  recrystallization region
Based on the tested data, the flow stress model of F40MnV steel was established in dynamic recovery region and dynamic recrystallization region, respectively.
      
It has been demonstrated that, for the specimens quenched with a cooling rate higher than 20°C/sec, it may seem to be appropriate to adjust the FRT as low as possible in the non-recrystallization region.
      
The velocity exhibited a slight increase in the recovery region followed by a sharp and continuous decrease in the recrystallization region and reached saturation on completion of recrystallization.
      
  recrystallization zone
It was shown that light isotope 24 Mg enrichment occurs at the crystal end to which the recrystallization zone moves.
      
The equiaxed grains in the dynamic recrystallization zone (DRZ) increase and the equiaxed characteristic of recrystallization grains in the DRZ is enhanced.
      
Therefore, the altitudinal belt over the 6000 m, we determined as recrystallization zone where melt does not occur.
      
  recrystallized zone
Results have shown a boron-induced secondary recrystallized zone at the bond line in MA957 which acts as a barrier to further grain growth across the bond line on subsequent zone annealing.
      
In friction-stir-welded Al 6061-T651 alloy, the stress corrosion cracks occur only locally in the boundary region between the dynamically recrystallized zone (DXZ) and the heat affected zone (HAZ) regions.
      
The dynamically recrystallized zone (DXZ) of a polished and etched FSW cross section exhibits contrasting bands (the "onion-ring" structure), the origins of which are unclear.
      
The failure mechanism was creep/fatigue-induced mixed intergranular and transgranular cracking in the recrystallized zone, but it was dominated by transgranular thermal fatigue failure beyond the recrystallized zone.
      
When the lower temperature extreme was raised from -40°C to 0°C, no recrystallized zone was detected and the failure was due to intergranular cracks.
      
  其他


The suitability of controlled rolling technique to the 20g steel plate has been determined th-rough studying the influence of controlled rolling on the micro-structure and properties.The in-fluence of rolling pass and reduction on the recrystallization and grain size of deformed austeniteis discussed.The experimental results show that the grain size of hot rolled austenite gets smallerand smaller as the rolling pass increases,but the first and second rolling passes have the greatesteffect on reduction in the...

The suitability of controlled rolling technique to the 20g steel plate has been determined th-rough studying the influence of controlled rolling on the micro-structure and properties.The in-fluence of rolling pass and reduction on the recrystallization and grain size of deformed austeniteis discussed.The experimental results show that the grain size of hot rolled austenite gets smallerand smaller as the rolling pass increases,but the first and second rolling passes have the greatesteffect on reduction in the grain size;afterwards,the refining effect per pass reduces gradually.Whenthe plate was rolled with 20% reduction per pass,except the first and the fourth passes,the defor-med austenite recrystallized completely;as the plate was rolled with 10% reduction per pass,re-crystallization occured only partly.Therefore,20% reduction per pass is better than 10%.The effectof rolling pass and reduction on the size of ferritic grains of hot rolled 20g boiler plate indicatesthat the reduction per pass in the recrystallization range of austenite and the finish rolling tempe-rature are the important technological parameters to determine the size of ferritic grains.Accordingto the experimental results,suitable technological parameters for controlled rolling have been deter-mined.

本文通过研究控制轧制对钢的组织和性能的影响,确定了控制轧制技术对20g钢板的适宜性。研究轧制道次及压下率对变形奥氏体的再结晶和晶粒大小的影响结果表明:热轧奥氏体晶粒是逐道细化的,但前两道轧制细化作用最大,随后道次细化作用逐渐减弱;在以20%的道次压下率轧制时,除第一、四道外,变形奥氏体都发生充分的再结晶,而在以10%的道次压下率轧制时,在所有道次中都只发生部分再结晶,20%的道次压下率要比10%为好。轧制道次及压下率对20g钢板轧后铁素体晶粒尺寸的影响规律表明:奥氏体再结晶区轧制的道次压下率及终轧温度是决定轧后铁素体晶粒大小的主要工艺参数。根据本实验结果拟定了适宜的轧制工艺参数。

The kinetics,the morphology,the substructure and orientation relation-ship of bainite transformed from hot deformed recrystallized austenite andhot deformed unrecrystallized austenite of three HSLA steels have beeninvestigated.The effects of hot deformed austenite on the bainite transfor-mation has been analyzed.

研究了三种低合金高强度钢在奥氏体再结晶区及未再结晶区热形变对粒状贝氏体转变的动力学、组织形貌、亚结构、晶体位向关系等方面的作用,并根据形交奥氏体的结构特点分析了对贝氏体转变的作用。

This paper gives austenite microstructure developed during multipass deformation in partial re-crystallization zone. The deformation was carried out at constant temperature, constant pass reduc-tion and constant interval between reductions in Gleeble machine. It was found that during multi-pass deformation in partial recrytallization zone of austenite, partial recrystallization can be cha-nge into complete recrystallzation under adequate conditions. This results in the improvement ofinhomogereous austenite produced...

This paper gives austenite microstructure developed during multipass deformation in partial re-crystallization zone. The deformation was carried out at constant temperature, constant pass reduc-tion and constant interval between reductions in Gleeble machine. It was found that during multi-pass deformation in partial recrytallization zone of austenite, partial recrystallization can be cha-nge into complete recrystallzation under adequate conditions. This results in the improvement ofinhomogereous austenite produced by partial recrystallized deformation and ill decrease of avaragcaustenite grain size. The rational rolling schedule must be able to complete one or more times tran-formation from partial recrystallization to complete recrystallization during multipass deformationin partial recrystallization zone.

在热模拟试验机上,以恒温、恒道次变形量和恒变形间隔时间的办法,研究了在奥氏体部分再结晶区多道次变形时的组织变化规律。研究证明,奥氏体部分再结晶区多道次变形可有条件地转化成完全再结晶组织,其结果可使因奥氏体部分再结晶区变形而产生的奥氏体组织不均得到改善,奥氏体平均晶粒尺寸减小。在奥氏体部分再结晶区轧制的合理工艺是,保证在该区的变形实现一次或多次的向奥氏体完全再结晶组织的转变。

 
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