铸造2013，Vol.62Issue(7)：666-669,4.
返回熔炼对K414合金组织及性能的影响
Effect of Returns Smelting on Structure and Mechanical Properties of K414 Alloy
满延林 1王宇飞 1王兴雅 1杨刚 1倪伟1
作者信息
- 1. 沈阳黎明航空发动机(集团)有限责任公司精密铸造厂,辽宁沈阳110043
- 折叠
摘要
Abstract
The Ni-based superalloy K414 was melted by using of 100％ returns,and the returns was recycled 4 times.The chemical composition,mechanical properties and the microstructure of green and reverted alloy were investigated.The results show that with the returns smelting times increasing,the main chemical compositions of the reverted alloy was stable basically,the gas element contents did not distinctly increase,and it was not necessary to add B and Ce elements to the melt during the melting process; there was no substantial difference between reverted alloy and green alloy in morphology;,with the return times increasing the tensile properties of reverted alloy at room temperature show a slight downtrend,while their elongation and impact toughness were increased compared to the green alloy;,the tensile strength properties increased slightly,reduction of necking area decreased slightly at 600 ℃,while their creep rupture life were reduced compared to the green alloy,and the mechanical properties and creep rupture life time for these reverted alloys are clearly better than the current standard requirements for K414 alloy.The quality of reverted alloy is similar to the green alloy.关键词
K414/返回料/显微组织/力学性能Key words
K414/ returns/ microstructures/ mechanical properties分类
矿业与冶金引用本文复制引用
满延林,王宇飞,王兴雅,杨刚,倪伟..返回熔炼对K414合金组织及性能的影响[J].铸造,2013,62(7):666-669,4.
