处理后的强度、硬度较高，但冲击韧度较低。
The strength and hardness is higher, but the toughness is lower after heat treatment.
室温冲击韧度随时效时间的延长整体下降，为韧性断裂；
Room temperature impact ductility decreased with the aging time increasing.
热处理后，材料的硬度和强度均有提高，但冲击韧度下降。
Through heat treatment, material hardness and strength increase, but impact toughness decreases.
结果表明：随着终轧温度的降低，角钢的冲击韧度逐渐降低；
The results show that, with the decrease of finishing temperature, the low-temperature impact ductility decreases gradually.
试验结果发现冻土的冲击韧度随冲量的增加而呈非线性增加趋势。
The results show that the impact toughness of frozen silt increases in nonlinear with the increase of pendulum impulse.
随奥氏体化温度的升高，实验钢的硬度和冲击韧度先升高后降低；
The hardness and impact toughness increase at first and then drop down with the increases of quenching temperature.
而夹杂物尺寸和形态的不同，对钢的强度和冲击韧度影响也不同。
While, the inclusions had a certain effects on strength and impact with size and shape.
结果表明：随着淬火和回火冷却速率的减慢，材料的冲击韧度下降；
The impact toughness decreased with decreasing the cooling speed of quench and temper.
高强度的高级淬火低温回火后具有良好的综合力学性能和低温冲击韧度。
Advanced high strength after quenching and tempering has good mechanical properties and low temperature impact toughness.
回火温度偏低及回火冷却速度偏缓等，是零件冲击韧度不足的另一原因。
The other reasons were lower tempering temperature and slower temper cooling rate.
随硅含量的增加，材料的硬度逐渐增大，抗拉强度逐渐减小，冲击韧度逐渐降低；
The addition of Si decreases the tensile strength and impact toughness of the composite. But the hardness of the composite increases.
另外，随着加铋后石墨球的细化，低温冲击韧度数值波动变小，性能变得更加稳定。
Additionally, the fluctuations in low-temperature toughness are reduced by adding Bi to refine graphite sphere, the performance becomes more stable.
结果显示，适量的铋可以减小石墨球径，增加石墨球数量，提高球铁的低温冲击韧度。
The results show that appropriate amount of Bi can decrease the diameter of graphite sphere, increase the number of graphite sphere, strengthen the low-temperature toughness.
当稀土加入量为0.01%时，重轨钢的奥氏体晶粒尺寸明显细化，冲击韧度显著改善。
When the content of RE addition is 0.01%, the grain size of austenite can be obviously fined, and the impacting toughness of heavy rail steel can be obviously improved.
此外，变质处理对高硼低碳铁基合金硬度无明显影响，但明显提高抗弯强度和冲击韧度。
Furthermore, the modification has no obvious influence on the hardness of high boron and low carbon ferroalloy, but increases its impact toughness and bending strength obviously.
利用光镜、显微硬度计研究了铬含量对低碳合金钢组织、硬度、冲击韧度及耐均匀腐蚀性的影响。
The influences of chromium content on the hardness, impact toughness and corrosion resistance of low carbon alloy steel were studied using om and hardness tester.
调整微合金含量和种类，可增加钢中碳化物数量、种类和弥散度，从而提高钢的硬度和冲击韧度。
The amount, kind and dispersity of carbide in steel can increase by regulating the content and kind of microalloying elements. So its hardness and impact toughness can be increased.
发现洁净度对钢材冲击韧度的影响要高于对强度的影响，提高洁净度可以大幅度提高钢材的冲击韧度。
It was found that the purity had greater influence on impact toughness than on strength. The impact toughness had been obviously improved with the increase of purity.
结果表明：稀土变质及热处理均能改善碳化物的形貌，提高其冲击韧度，且两者的综合作用效果更明显。
The results show that rare earth modification and heat treatment all can improve eutectic carbide morphology and increase the impact toughness, and both comprehensive result is more noticeable.
结果发现，失效件的硅含量偏高、硬度值很不均匀，冲击韧度和伸长率远低于材质要求，因而导致脆断。
The results shows that the failure parts has high silicon content and uneven hardness , the impact toughness and elongation is far below the specification of the material.
结果表明：热处理后组织与铸态组织相比，碳化物分布趋于弥散细小，冲击韧度和硬度都有较大的提高。
The results indicate that, compared with those of the as-cast Cr28, carbides disperse more uniformly and finer, and the hardness and impact toughness increase significantly.
为了研究不同冲击速度条件下块煤冲击韧度的变化特征，以及块煤节理方向性对块煤冲击韧度的变化特性。
In order to understand the properties of impact toughness of coal with different impact speeds and the change of impact toughness of lump coal to joint directivity of lump coal.
随着热强碱腐蚀时间的延长，高锰钢的冲击韧度明显降低，碱脆开裂是造成高锰钢冲击韧度下降的主要原因。
With increasing corrosion time the impact toughness of high Mn steel obviously decreased. The major mechanism was effect of the caustic embrittlement cracking.
随着热强碱腐蚀时间的延长，高锰钢的冲击韧度明显降低，碱脆开裂是造成高锰钢冲击韧度下降的主要原因。
The high Mn steel caustic embrittlement cracking was distinct in corrosion. With increasing corrosion time the impact toughness of high Mn steel obviously decreased.
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。
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.
复合变质中锰奥氏体钢的冲击韧度、裂纹形成功和裂纹扩展功分别比原来提高了263%、288%和232%。
The impact toughness, crack forming energy and crack extension energy of complex modified medium manganese austenitic steel. Are increased by 263%? 288% and 232% respectively.
结果表明：当锻造产生了白点和过热缺陷时，牙轮牙爪的力学性能明显下降，尤其是塑性指标和冲击韧度降低明显。
It is of vital process step that the temperature of rolled products when inceptively charged into soaking pit for preventing steel from having flakes and internal crack, etc.
采用浸泡腐蚀试验和腐蚀前后的冲击试验并借助于扫描电镜观察，研究了热强碱介质中高锰钢的腐蚀速率和冲击韧度。
The corrosion weight loss rate and impact toughness of high Mn steel in hot concentrated caustic solution were studied by using immersed corrosion, impact test and SEM.
采用真空控时急冷技术对H13钢热作模具进行淬火，可使之得到细小的马氏体组织，从而显著提高热作模具的冲击韧度。
Hot working dies of H13 steel vacuum quenched by the use of the time-controlled sudden cooling technology will obtain fine martensite.
采用真空控时急冷技术对H13钢热作模具进行淬火，可使之得到细小的马氏体组织，从而显著提高热作模具的冲击韧度。
Hot working dies of H13 steel vacuum quenched by the use of the time-controlled sudden cooling technology will obtain fine martensite.
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