铸造技术2018，Vol.39Issue(5)：980-983,991,5.DOI:10.16410/j.issn1000-8365.2018.05.009
微合金Ti元素对35Cr45NiNb合金炉管组织与力学性能影响
Effect of Ti Additions on Microstructure and Mechanical Properties of 35Cr45NiNb Alloy Furnace Tube
摘要
Abstract
The influence of 0.011％～0.204％Ti on microstructure and mechanical properties were investigated by centrifugal casting 35Cr45NiNb alloy ethylene pyrolysis furnace tube. The results show that the addition of microalloying element Ti can significantly influence the microstructure and high temperature endurance of 35Cr45NiNb alloy furnace tube. When the content is 0.011％Ti, there is no Ti carbide precipitation; When the content is 0.101％ Ti, (NbTi)C is precipitated out in the grain boundary of austenite. From the results of room temperature tensile and high temperature endurance properties, the Ti content is 0.08％ ～0.12％, and the 35Cr45NiNb alloy furnace tube has good room temperature and high temperature endurance properties.关键词
35Cr45NiNb合金炉管/Ti/微观组织/高温持久性能Key words
35Cr45NiNb alloy/Ti/microstructure/high temperature endurance properties分类
金属材料引用本文复制引用
叶娟,陈学东,陈涛,刘春娇,连晓明..微合金Ti元素对35Cr45NiNb合金炉管组织与力学性能影响[J].铸造技术,2018,39(5):980-983,991,5.基金项目
国家高技术研究发展计划(863 计划)(2015AA034402) （863 计划）
安徽省杰出青年科学基金(1708085J05) （1708085J05）
