铸造2023，Vol.72Issue(12)：1568-1572,5.
吹砂条件对DZ125合金再结晶和蠕变性能的影响
Effect of Sand Blowing Conditions on Recrystallization and Creep Properties of DZ125 Alloy
孙颖 1刘军和 1王福德 1张明俊2
作者信息
- 1. 空军装备部驻沈阳地区某军事代表室,辽宁沈阳 110043
- 2. 中国航发沈阳黎明航空发动机有限责任公司,辽宁沈阳 110043
- 折叠
摘要
Abstract
DZ125 alloy was treated with different sand blowing conditions.The effect of sand blowing strength,sand blowing medium and heat treatment regime on recrystallization and creep properties was studied in detail.The results showed that the thickness of recrystallization layer increases with the increase of sand blowing strength under the same heat treatment process and sand blowing medium conditions.Furthermore,the recrystallization layer of standard heat-treated alloy is the thickest,followed by solution-treated alloy,and the recrystallization layer of homogenization-treated alloy is the thinnest under the same conditions of sand blowing medium and strength.Under the condition of 0.4 MPa and 1 min,the recrystallization layer of wet sand is the thinnest,followed by dry sand,and river sand is the thickest.The creep test results of DZ125 alloy at 980℃/235 MPa showed that the creep lives of recrystallized samples are obviously lower than that of standard heat-treated samples without recrystallization,and the creep lives of DZ125 alloy at different sand blowing strengths are similar,which indicates that the damage effect of recrystallization layer is similar when the thickness of recrystallization layer exceeds a certain value.Moreover,the recrystallization have no obvious effect on the creep properties of samples with wall thickness of 2 mm to 4 mm.关键词
DZ125合金/再结晶/吹砂处理/蠕变性能Key words
DZ125 alloy/recrystallization/sand blowing/creep property分类
矿业与冶金引用本文复制引用
孙颖,刘军和,王福德,张明俊..吹砂条件对DZ125合金再结晶和蠕变性能的影响[J].铸造,2023,72(12):1568-1572,5.
