摘要
针对高强船板D36拉伸试验后出现断口异常分离现象,利用金相显微镜、扫描电镜、能谱仪、电子探针(EPMA)对出现分离断口的试验钢板和拉伸断口进行了组织、成分的检测和分析,认为拉伸试样中心出现异常分离断口的现象与钢板的中心偏析、粗大的珠光体带(低温产物带)、硫化锰夹杂有关。
To analysis the abnormal separated fracture on tensile sample of D36 high strength ship plate, metallurgical microscope, energy spectrometer, electron probe microanalysis and electronic scanner microscope were used to detect and analyze the microscopic structure and chemical elements of the abnormal plate. The results indicate that the center segregation, pearlitic band, manganese sulfide inclusions and micro-cracks are the causes of separated fracture on tensile sample of high strength ship plate D36.
出处
《热加工工艺》
CSCD
北大核心
2009年第14期160-163,共4页
Hot Working Technology
关键词
高强船板
中心偏析
分离断口
夹杂物
裂纹
high strength ship plate
center segregation
separated fracture plane
inclusion
micro-crack
