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06NiCuCrMoNb钢高温加热时表层铜的行为 被引量:6

Behavior of Copper in Surface Layer of 06NiCuCrMoNb at High Temperature
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摘要 将06NiCuCrMoNb钢试样在不同的加热温度保温不同时间后,观察并分析试样表层的形貌和成分。结果表明,在一定条件下铜会扩散进入表层奥氏体晶界,得到沿奥氏体晶界分布的富铜相,并在热变形加工时导致热脆。试验得到了沿奥氏体晶界分布的富铜相与加热温度和保温时间的关系。 After holding at different temperatures and for different times, the morphology and composition of surface layer of the specimens have been observed and analyzed. The results show that the copper enters the austenite grain boundaries in surface layer under some conditions, resulting in formation of copperrich phase around the austenite grain boundaries, making steel brittle during hot deformation. From the experiments, the interaction between the formation of copperrich grain boundaries, and heating temperature and holding time has been derived.
作者 蔡幼庆
出处 《钢铁研究学报》 CAS CSCD 北大核心 2003年第2期44-47,共4页 Journal of Iron and Steel Research
关键词 低合金高强度钢 加热温度 保温时间 扩散 晶界 HSLA steel heating temperature holding time diffusion grain boundary
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