镍系低温用钢缺口韧性的研究

Study on toughness of steel notch for nickel-base in low temperature

通过对材料的试验检测及金相与电子断口分析 ,总结出调质工艺、正火 +调质及不同的加热与回火温度对LF3锻钢和LC3铸钢低温韧性的影响 ,为改善这

Though testing and inspection of the material and notch analysis of metallography and electronics,the summary is given that different heat treatment such as hardening and tempering process,normalizing plus hardening and tempering,as well as temper temperature have influenced on the toughness of low temperature of LF3 forge steel and LC3 cast steel. Provide better methods for improving stability of the toughness of low temperature of the two kinds of steel.