摘要
82B线材中元素偏析是造成其拉拔脆断和性能偏低的主要原因。采用金相显微镜、扫描电镜能谱仪、电子探针能谱仪及电子探针波谱仪对82B线材中元素偏析进行定性定量分析。结果表明:金相显微镜只能显示组织的显微偏析;扫描电镜能谱仪的定性面扫描图中,中心部位马氏体区Si的质量分数为0.19%～0.43%,Mn的质量分数为0.86%～1.46%,元素的偏析分布不明显;电子探针能谱仪在微区成分定量分析中,Si的质量分数为0.20%～0.35%,Mn的质量分数为1.46%～1.94%,Mn的质量分数显示偏高;电子探针波谱仪测定Si的质量分数为0.199%～0.245%,Mn的质量分数为1.388%～1.482%,电子探针波谱仪提供的结果更准确有效。
The 82B wire rod core element segregation is main reason that causes wire drawn fracture and low properties. 82B wire rod core element segregation qualitative and quantitative is analyzed by adopting microscope, Scanning Electron Microscope Energy Disperse Spectroscopy（ SEMEDS）, electron probe spectrometer EDS and electron probe spectrometer. Results show： microstructure analysis only shows microsegregation of structure. In the qualitative face scanning of SEMEDS, mass fraction of Si is 0.19% - 0.43%, mass fraction of Mn is 0.86% - 1.46% in core martensite area, element segregation distribution is unobvious. In micro area element quantitative analysis by adopting electron probe spectrometer EDS, mass fraction of Si is 0.20% -0.35% , mass fraction of Mn is 1.46% - 1.94% , mass fraction of Mn is higher. The mass fraction of Si tested by adopting electron probe spectrometer is 0. 199% - 0. 245%, mass fraction of Mn is 1. 388% - 1. 482%. The results supplied by electron probe spectrometer are more effective.
出处
《金属制品》
2011年第6期73-76,共4页
Metal Products
