摘要
采用合金化方法研究了微量Sb对185mm大截面A型和D型石墨的水平连铸灰铸铁型材基体组织及断面敏感性的影响。结果表明,微量Sb合金化可有效提高大断面D型或A型石墨铸铁型材基体组织中的珠光体含量,有利于提高型材断面硬度绝对值、抗拉强度,降低型材断面的硬度差,改善铸件的断面敏感性。
Matrix microstructure and section sensitivity of HCC gray iron bars with diameters of 185 mm containing A type graphite or D type graphite were investigated by adding trace antimony. The results reveal that trace Sb addition can greatly increase the content of pearlite in the microstructure of gray iron matrix containing A type graphite or D type graphite,which is favorable for the increase of cross section hardness and tensile strength and the decrease of difference in cross section hardness as well as improvement of section sensitivity.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2010年第6期501-503,共3页
Special Casting & Nonferrous Alloys
基金
凝固技术国家重点实验室开放课题(SKLSP210002)
陕西省重点学科建设专项资金资助项目
