摘要
比较四种热处理方法下蠕墨铸铁试样的断裂韧度。试验结果表明,蠕墨铸铁的断裂韧度受不同基体组织的影响比较明显;受不同石墨形态的影响显著,与结构钢不同,蠕墨铸铁的断裂韧度随材料的屈服强度增大而增大,随石墨颗粒的长厚比增加会急剧下降。
The fracture toughness values of vermicular graphite east iron specimen subjected to four different heat treatment methods were tested and compared. The results indicate that the fracture toughness is influenced markedly by the different base structure of vermicular east iron and by the form of graphite; unlike steel, the fracture toughness of vermicular cast iron increases with the yielding strength, while drops drastically with the increase of ratio of graphite grain length to thickness.
出处
《机械强度》
EI
CAS
CSCD
北大核心
2007年第2期310-314,共5页
Journal of Mechanical Strength
关键词
蠕墨铸铁
断裂韧度
试验研究
Vermicular graphite cast iron
Fracture toughness
Experimental study
