空冷后高温回火产生回火脆性。
However, a temper brittleness has appeared after high temper.
引起脆性断裂的原因是成型模产生了回火脆性。
The fracture is brittle fracture, and the reason is that material of forming dies takes place the temper brittleness.
经过对材料的分析试验，发现其具有高温回火脆性。
By analytical testing the material discovered that it has high temperature temper embrittlement.
经过对材料的分析试验，发现其具有高温回火脆性。
The results show that ZGMn13 steel has low temperature brittleness.
改变杂质水平，看出显微组织的影响与回火脆性无关。
Varying impurity level, it was found that this microstructural effect is independent of temper embrittlement.
试验还证明，工作应力对粗晶区回火脆性的影响不大。
The tests prove that the working stress has little effect on the temper embrittlement of the coarse grained region.
通过热处理试验对t 23钢的回火脆性进行了研究。
The temper brittleness of T23 steel was studied through heat treatment experiment.
研究了合金元素对一种多元合金钢可逆回火脆性的影响。
Effect of alloying elements of a multicomponent alloy steel on the temper embrittlement is investigated.
结果表明：随淬火温度提高，低温回火脆性区向高温区漂移。
The results show with increasing quenching temperature the brittle temperature of the steel tempered at low temperature brittle temperature moves upwards.
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.
在服役过程中，建议避开临界时间加载，从而预防回火脆性的发生。
When steels employed, the critical time should be avoid to prevent appearance of temper embrittlement.
结果表明，螺栓断裂原因是因材料发生回火脆性，提出了改进方法，从而杜绝了类似情况的发生。
The result showed that the reason of fracture was the temper brittleness of material. In order to avoiding the fracture, the improving method was proposed.
其高温回火脆性是晶界上m_6c碳化物的析出长大和由此所产生的晶界磷偏聚共同作用的结果。
The tempering embrittlement results from the precipitation and growth of M_6Ccarbides particles and the segregation of phosphorus at prior austenite grain boundaries.
对开裂的发动机排气歧管垫片进行了失效分析，发现产生第一类回火脆性是导致垫片开裂的原因。
The results show that the one-step temper embrittlement (OSTE) is the main factor to cause the crack of engine exhaust pipe washers.
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.
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.
用基于风险检验评估方法分析了石化装置中运行的高温设备发生脆性断裂失效的可能性，介绍了利用回火脆化损伤因子确定最低升压温度的计算方法，为装置安全生产提供了可靠依据。
The method to determine the minimum upset temperature by means of the damage factor of temper embrittlement was introduced, and the dependable basis for equipment safe operation was offered.
通过宏观和微观分析，证实模板的断裂属脆性断裂，导致模板断裂的主要原因是热处理时回火不足，模板磨削不当是断裂的外部原因。
After macroscopic and microscopic analysis, the type of the fracture belongs to brittle fracture is confirmed. Insufficient tempering is the main factor and the improper grinding is the outer factor.
通过宏观和微观分析，证实模板的断裂属脆性断裂，导致模板断裂的主要原因是热处理时回火不足，模板磨削不当是断裂的外部原因。
After macroscopic and microscopic analysis, the type of the fracture belongs to brittle fracture is confirmed. Insufficient tempering is the main factor and the improper grinding is the outer factor.
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