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low temperature temper embrittlement
相关语句
  低温回火脆性
     INVESTIGATION ON LOW TEMPERATURE TEMPER EMBRITTLEMENT OF 20Cr2Ni4A STEEL
     20Cr2Ni4A钢低温回火脆性探讨
短句来源
     The present investigation is concerned with the origin of low temperature temper embrittlement in the 20Cr2Ni4A steel. Both optical microscopy and scanning electron microscopy were used.
     用光学金相及扫描电镜分析方法研究了20Cr2Ni4A钢的低温回火脆性机理.
短句来源
  相似匹配句对
     The Low Temperature Electrochemistry
     低温电化学
短句来源
     Low Temperature Plasma
     低温等离子体聚合反应
短句来源
     ON TEMPERATURE
     谈谈温度
短句来源
     T is temperature, ℃.
     T为温度,℃。
短句来源
     (c) low temperature and high stress;
     在较低温度、较高应力的蠕变过程中,晶界强度则有比较显著的提高。
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The present investigation is concerned with the origin of low temperature temper embrittlement in the 20Cr2Ni4A steel. Both optical microscopy and scanning electron microscopy were used. It is concluded that the observed temper embrittlement arises while this steel is ageel at 250-350℃. The reason is the combined action of carbides precipitation on the interphase boundaries of Martensite/Austenite and impurity segregation on original austenitic grain boundaries, the later facilitates intergranular...

The present investigation is concerned with the origin of low temperature temper embrittlement in the 20Cr2Ni4A steel. Both optical microscopy and scanning electron microscopy were used. It is concluded that the observed temper embrittlement arises while this steel is ageel at 250-350℃. The reason is the combined action of carbides precipitation on the interphase boundaries of Martensite/Austenite and impurity segregation on original austenitic grain boundaries, the later facilitates intergranular fracture along the prior austenite grain boundaries. Meanwhile, the proper temperature range for low temperature tempering of 20Cr2Ni4A steel has been shown.

用光学金相及扫描电镜分析方法研究了20Cr2Ni4A钢的低温回火脆性机理.研究结果表明,该钢在250~350℃区间回火时出现低温回火脆性,其原因与碳化物沿奥氏体-马氏体相界面析出及杂质元素偏聚于原奥氏体晶界有关,后者易导致沿晶断裂.提出了适宜的低温回火温度范围.

 
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