航空材料学报2016，Vol.36Issue(5)：14-20,7.DOI:10.11868/j.issn.1005-5053.2016.5.003
变形温度及变形量对挤压态FGH96合金晶粒异常长大的影响
Effect of Deforming Temperature and Strain on Abnormal Grain Growth of Extruded FGH96 Superalloy
摘要
Abstract
Based on the experiments of isothermal forging wedge-shaped samples, Deform-3D numerical simulation software was used to confirm the strain distribution in the wedge-shaped samples. The effect of deforming temperature and strain on abnormal grain growth (AGG) in extruded FGH96 superalloy was examined. It is found that when the forging speed is 0. 04 mm/s,the critical AGG occurring temperature is 1100 ℃,and the critical strain is 2%. AGG does not occur within 1000-1070 ℃,but still shows the feature of‘critical strain’ ,and the region with strain of 5%-10% has the largest average grain size. AGG can be avoided and the uniform fine grains can be gained when the strain is not less than 15%.关键词
FGH96合金/楔形试样/临界变形温度/临界变形量/晶粒异常长大Key words
FGH96 superalloy/wedge-shaped sample/critical deforming temperature/critical strain/abnormal grain growth分类
矿业与冶金引用本文复制引用
王超渊,东赟鹏,宋晓俊,方爽,于秋颖,李凯,王淑云..变形温度及变形量对挤压态FGH96合金晶粒异常长大的影响[J].航空材料学报,2016,36(5):14-20,7.基金项目
航空科学基金(2014ZF21029) （2014ZF21029）
