一种新型高强高塑性球墨铸铁的研究
|
摘要
介绍了球墨铸铁的合金成分设计,阐述了高强高塑性球墨铸铁的制备方法。通过添加合金元素与痕量元素,改进球化孕育工艺,可提高球墨铸铁的球化率,细化石墨,使珠光体和铁素体得到合理搭配,在强度提高的同时得到高塑性,远高于对应的国家标准。该球墨铸铁在常温条件下抗拉强度达到750 MPa,屈服强度达到560 MPa,伸长率达到7.5%以上。
The design of the alloy composition of ductile iron was introduced, and the preparation method of high-strength and high-plasticity ductile iron was described in detail. The results show that, adding alloying elements and trace elements and improving the spheroidization process, the spheroidizing rate of theductile iron can be improved and the graphite refined. Thus, the pearlite and ferrite in the structure get a reasonable match, and the strength and plasticity are enhanced simultaneously, which are much higher than the corresponding national standards. The tensile strength of the ductile iron reaches 750 MPa at room temperature, the yield strength reaches 560 MPa, and the elongation is more than 7.5%.
The design of the alloy composition of ductile iron was introduced, and the preparation method of high-strength and high-plasticity ductile iron was described in detail. The results show that, adding alloying elements and trace elements and improving the spheroidization process, the spheroidizing rate of theductile iron can be improved and the graphite refined. Thus, the pearlite and ferrite in the structure get a reasonable match, and the strength and plasticity are enhanced simultaneously, which are much higher than the corresponding national standards. The tensile strength of the ductile iron reaches 750 MPa at room temperature, the yield strength reaches 560 MPa, and the elongation is more than 7.5%.
引文
[1]Millis K D.The Invention of Ductile Iron[J].Modern Casting,1998(10):41-44.
[2]张扬扬,孙有平,周学浩,等.球墨铸铁QT800-6正火处理工艺研究[J].铸造技术,2017,38(1):65-67.
[3]申志清.球墨铸铁石墨球核心组成及热力学分析[D].济南:山东大学,2012.
[4]蔡启舟,王敬华,张斗,等.Y和Sb对厚大断面球墨铸铁石墨形态的影响[J].现代铸铁,2010(2):37-41.
[5]胡勇.Mn、Cu对球墨铸铁组织性能的影响[J].兵器材料与工程,2012,35(4):5-7.
[6]日本金属学会铸造分科会.球墨铸铁的理论和实践[M].东京:丸善株式会社,1966.
[7]雷富军.球墨铸铁球化及其孕育处理研究进展[J].热加工工艺,2008,37(13):2-4.
[8]Sheng Da,Liu Jincheng.Cast Iron containing Rare Earths[M].北京:清华大学出版社,2000:103-141.
[9]沈阳铸造研究所,大连工学院,上海科学技术协会.球墨铸铁[M].北京:机械工业出版社.
[10]张伯明.蠕墨铸铁最新发展[J].现代铸铁,2006(1):12-19.
[11]王峰,严增男.球墨铸铁的球化与孕育处理工艺[J].现代铸铁,2012(4):2-6.
[12]李玉和,苟淑云,冯向琴.V_Ti球墨铸铁轮毂生产试制[J].铸造技术,2017,38(2):1-4.
[13]周亘.稀土镁球墨铸铁的起源及早期发展[J].现代铸铁,2005(1):22-28.
[14]钱红武.关于球墨铸铁球化处理工艺的探讨[J].铸造技术,2017,38(3):732-733.
[15]余学文.球墨铸铁球化率超声波检测系统设计及实验验证[J].铸造技术,2017,38(2):485-487.
[16]尚庆宝,李化强.汽车发动机排气管用球墨铸铁抗生长性探讨[J].铸造技术,2016,37(4):634-365,641.
[2]张扬扬,孙有平,周学浩,等.球墨铸铁QT800-6正火处理工艺研究[J].铸造技术,2017,38(1):65-67.
[3]申志清.球墨铸铁石墨球核心组成及热力学分析[D].济南:山东大学,2012.
[4]蔡启舟,王敬华,张斗,等.Y和Sb对厚大断面球墨铸铁石墨形态的影响[J].现代铸铁,2010(2):37-41.
[5]胡勇.Mn、Cu对球墨铸铁组织性能的影响[J].兵器材料与工程,2012,35(4):5-7.
[6]日本金属学会铸造分科会.球墨铸铁的理论和实践[M].东京:丸善株式会社,1966.
[7]雷富军.球墨铸铁球化及其孕育处理研究进展[J].热加工工艺,2008,37(13):2-4.
[8]Sheng Da,Liu Jincheng.Cast Iron containing Rare Earths[M].北京:清华大学出版社,2000:103-141.
[9]沈阳铸造研究所,大连工学院,上海科学技术协会.球墨铸铁[M].北京:机械工业出版社.
[10]张伯明.蠕墨铸铁最新发展[J].现代铸铁,2006(1):12-19.
[11]王峰,严增男.球墨铸铁的球化与孕育处理工艺[J].现代铸铁,2012(4):2-6.
[12]李玉和,苟淑云,冯向琴.V_Ti球墨铸铁轮毂生产试制[J].铸造技术,2017,38(2):1-4.
[13]周亘.稀土镁球墨铸铁的起源及早期发展[J].现代铸铁,2005(1):22-28.
[14]钱红武.关于球墨铸铁球化处理工艺的探讨[J].铸造技术,2017,38(3):732-733.
[15]余学文.球墨铸铁球化率超声波检测系统设计及实验验证[J].铸造技术,2017,38(2):485-487.
[16]尚庆宝,李化强.汽车发动机排气管用球墨铸铁抗生长性探讨[J].铸造技术,2016,37(4):634-365,641.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |