铸造技术2011，Vol.32Issue(12)：1669-1672,4.
Ni对高锰奥氏体球墨铸铁组织和性能的影响
Effect of Ni on Microstructures and Properties of High-Mn Austenite Ductile Cast Iron
摘要
Abstract
In order to decrease the nickel content in austenite cast iron and reduce alloy cost, the Fe-13Mn-3.5C-3Si-3Cu-xNi (x = 8%,4%,0) high-Mn austenite ductile cast iron with three different nickel contents were prepared and studied. The results show that, after solution treatment, as the nickel content decreases, the carbide amount in austenite matrix increases and the tensile strength, elongation, flexural strength and impact toughness all declines. When the nickel content is 4% and 8%, the cast irons possess excellent comprehensive mechanical properties, and the high strength and plasticity results from TWIP effects in the process of deformation. As nickel content decreases from 8% to 0, the friction coefficient and the wear rate of the cast irons increase first, and then decrease, the main wear mechanism changes from adhesive wear to abrasive wear. A few content nickel in the alloy should be kept for ensuring the comprehensive properties of the ductile cast iron.关键词
高锰奥氏体球铁/镍含量/力学性能/摩擦磨损/耐腐蚀性Key words
High-Ma austenite nodula/ Nickel content/ Mechanical property/ Friction and wear? Corrosion resistance分类
矿业与冶金引用本文复制引用
黄芬芬,朱定一,王明杰,颜炜鑫..Ni对高锰奥氏体球墨铸铁组织和性能的影响[J].铸造技术,2011,32(12):1669-1672,4.基金项目
福建省高校产学合作科技重大项目(2011H6012) （2011H6012）
福建省自然科学基金(2011J01292). （2011J01292）
