含硫过多的铁和钢都是热脆性的。
乙烯基水槽也能够成为在极端热脆性和寒气候。
Vinyl gutters can also become brittle in extreme hot and cold climates.
出现再热脆性的主要原因是晶界粗大碳化物的析出和晶内二次硬化。
The authors suggest that the primary factors of the reheat embrittlement are precipitation of coarse carbide along the grain boundary and secondary hardening in the grain.
残余铜含量越高，晶界与基体界面氧化腐蚀越严重，热脆性倾向越大；
The more the content of residual copper in steel, the more severely the oxidation corrosion occurs on grain boundary and matrix, the greater the hot brittleness tendency;
合理地改善热加工时间和温度，可以减轻钢中残余铜元素所导致的热脆性。
Improving the time and temperature of hot-working process rationally, the hot brittleness caused by residual copper is lightened.
因此，辊子表面有极高的硬度、脆性及热不稳定性。另外，由于高的硬度使之具有高的裂纹敏感性。
Therefore, the roll surface is extremely hard and brittle and it is thermally unstable. In addition, it is highly crack sensitive because of the high hardness.
在一定的断裂韧度前提下，随着局部脆性区尺寸的增加，焊接热影响区的脆断概率增加。
At a certain fracture toughness value, fracture probability of weldments increases with increase of the local brittle zone size.
对反应器壳体在热壁条件下可能发生的腐蚀和回火脆性进行了分析。
The corrosion and temper embrittlement of reactor shell probably occurred under hot wall condition were analyzed.
因此，辊子表面有极高的硬度、脆性及热不稳定性。
Therefore, the roll surface is extremely hard and brittle and it is thermally unstable.
前轮对处于脆性温度区间的焊缝金属施加一个横向挤压塑性应变，减小甚至抵消致裂的拉伸应变，防止了焊接热裂纹的产生。
The front impact roller causes transverse plastic compression strain in the weld which is in the brittle temperature range, which counteracts the tensile strain which leads to hot cracking.
韧性剪切带形成以后，区内主要经历了热蚀变和脆性变形，韧性变形很弱。
After the formation of ductile shear zones, there is no strong ductile shear deformation in the region, except some thermal alterations and brittle deformation.
一个主要原因是车轮在钢轨上由于制动滑动产生的脆性马氏体所导致的踏面热损伤和蠕变。
One of important reasons is that the generation of brittle martensite due to brake sliding of wheels on rails leads to tread damage and its creep.
前两种为脆性断裂方式，热解炭基体的断裂应变是这类材料强度的控制因素。
The former two types are brittle ones, and the fracture strain of pyrolytic carbon matrix is the controlling factor of the strength.
介绍了硬脆性泥页岩稳定性评价的几种新方法——改进的热滚分散法、泥饼强度测试法及动滤失试验法。
New evaluation methods for fragile shale are introduced, including improved hot rolling test, filter cake strength tester, and dynamic filtration test.
钢中的残余有害元素致使钢材产生红脆性表面裂纹和具有回火脆性倾向，并使耐热钢的热强性降低。
The residual deleterious elements in steel lead to products occurring red brittleness surface crack and temper brittleness, and lead to hot strength of heat resistant steel decreasing.
经不同温度下的拉伸试验，考察了几种热作工具钢的中温脆性。
The medium temperature embrittlement of several hot-working tool steels has been investigated by tensile tests at various temperatures.
用改进的热滚分散法探讨了含水量对硬脆性泥页岩稳定性的影响。
The effect of moisture content on shale stability was investigated by hot rolling test.
钢中的残余有害元素致使钢材产生红脆性表面裂纹和具有回火脆性倾向，并使耐热钢的热强性降低。
The residual deleterious elements in steel lead to the products occurring red surface brittleness crack and temper brittleness, and lead to the hot strength of heat resistant steel decreasing.
结果表明，钢丝热浸镀时走速过快和镀层不均匀是导致扭转脆性断裂的主要原因。
And quick wire movement during hot-dipping and inhomogeneous coating was identified as the main cause.
从最弱链模型的物理本质出发，探讨了影响焊接热影响区脆性断裂的主要因素。
In this paper, the brittle fracture probability of weldments and the fracture toughness of heat affected zone (HAZ) were investigated according to the principle of the weakest link theory.
结果表明，在连接杆焊缝附近的热影响区中存在大量针状马氏体组织，在低应力的作用下，导致材料发生脆性断裂。
The result shows that the fracture mode is low stress brittle fracture. The fracture is mainly caused by needle type martensite in the heat affected zone of the weld joint.
结果表明，精铸热锻模的主要失效形式为热磨损、塑性变形、热疲劳裂纹、冲击疲劳破断和脆性断裂。
The results show that hot-forged cast dies take thermal wear, plastic deformation, thermal fatigue, impact fatigue fracture and brittle fracture as predominant failure patterns.
基于均匀化方法给出低孔隙率脆性岩石在热—力耦合荷载作用条件下的各向异性损伤模型和有效热传导特性模型。
An anisotropic damage model and an effective thermal conductivity model were presented based on homogenization techniques for low-porosity brittle rocks subjected to mechanical and thermal loadings.
此外，还研究了焊接热输入量对局部脆性区断裂韧性的影响，并通过定性、定量的金相显微组织评定对试验结果进行了分析。
In addition, the effect of welding heat input was studied. Qualitative and quantitative metallographic examination of the simulated microstructures was made to assist t...
从最弱链模型的物理本质出发，探讨了影响焊接热影响区脆性断裂的主要因素。
The fatigue crack growth (FCG) behavior of the weld heat-affected zone of 14MnNbq bridge steel was systematically investigated in this paper.
从最弱链模型的物理本质出发，探讨了影响焊接热影响区脆性断裂的主要因素。
The fatigue crack growth (FCG) behavior of the weld heat-affected zone of 14MnNbq bridge steel was systematically investigated in this paper.
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