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38crmoal gang yi zhuang duan kou ji qi duan zao lie wen de dian jing yan jiu
Author(s): 
Pages: 50-53
Year: Issue:  4
Journal: Ordnance Material Science and Engineering

Keyword:  CrMoAl沿晶断裂非金属夹杂电镜研究选区电子衍射透射电子显微镜碱性平炉表面裂纹复型奥氏体晶界;
Abstract: <正> 我厂碱性平炉冶炼的38CrMoA1钢,在锻造时产生裂纹,其纵向断口是变形能力较差、呈致密而较平坦的灰白色大块岩石形异状断口,使横向机械性能(尤其是δ、φ、α_k值)显著降低。通过对异状断口二次复型进行了大量透射电子显微镜观察,发现异状断口区存在大量非金属夹杂引起沿晶断裂;经选区电子衍射分析,确定其为AIN夹杂。这
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