低合金化铁素体耐热球墨铸铁的合金元素设计  

Alloying Element Design of Low Alloying Ferrite Heat Resistant Ductile Cast Iron

作　　者：刘志勇 吕士贵 LIU Zhiyong;LYU Shigui(Shandong Yuxin Csating Co.,Ltd.,Weifang 262506,China;School of mechanical and electrical engineering,Heze University,Heze 274015,China;Shandong RIFA Textile Machinery Ltd.,Liaocheng 252000,China)

机构地区：[1]山东宇信铸业有限公司,山东潍坊262506 [2]菏泽学院机电工程学院,山东菏泽274015 [3]山东日发纺织机械有限公司,山东聊城252000

出　　处：《铸造技术》2023年第9期867-872,共6页Foundry Technology

基　　金：山东省自然科学基金(ZR2021ME060);潍坊市科技发展计划(2022ZJ1216)。

摘　　要：本文从铁素体耐热球墨铸铁的抗氧化、抗生长、抗疲劳能力以及促进铁素体的形成和石墨球化方面研究了铁素体耐热球墨铸铁的主要合金元素种类及其使用范围。结合铁素体耐热球墨铸铁制备工艺,进一步对各合金元素在铁素体耐热球墨铸铁中的作用、合金元素间的匹配机理以及合金元素匹配用量进行分析。最终得到了合金成分(质量分数,%)为3.6 C,3.9 Si,3.0 Al,1.5 Cr,0.8 Mo,0.6 Ni的高性能低合金化铁素体耐热球墨铸铁。In this paper,the types and contents of the alloying elements in ferrite heat-resistant ductile cast iron were studied from the aspects of oxidation resistance,growth resistance,fatigue resistance,ferrite formation promotion and graphite spheroidization.The role of alloying elements and their matching content and matching mechanism were further systematically analysed in combination with the preparation process of ferrite heat resistant ductile iron.Finally,the alloying element design(mass fraction,%):3.6 C,3.9 Si,3.0 Al,1.5 Cr,0.8 Mo,0.6 Ni of the ferrite heat resistant ductile iron with excellent mechanical properties and low alloying was obtained.

关 键 词：铁素体 耐热球墨铸铁 合金元素 低合金化 

分 类 号：TG143.5[一般工业技术—材料科学与工程]