吹砂压力与加热温度对DD406单晶高温合金再结晶的影响

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• 英文论文题名：Effects of Grit Blasting Pressure and Heating Temperature on the Recrystallization Microstructure of Single Crystal Superalloy DD406
• 论文作者：熊继春 ; 李嘉荣
• 英文论文作者：Xiong Jichun ; Li Jiarong ; Science and Technology on Advanced High Temperature Structural Materials Laboratory ; Beijing Institute of Aeronautical Materials
• 年：2015
• 作者机构：北京航空材料研究院先进高温结构材料重点实验室;
• 论文关键词：吹砂压力 ; 加热温度 ; 单晶高温合金 ; DD406 ; 再结晶组织
• 英文论文关键词：grit blasting pressure ; heating temperature ; single crystal superalloy ; DD406 ; recrystallization microstructure
• 会议召开时间：2015-05-20
• 会议录名称：第十三届中国高温合金年会论文集
• 英文会议录名称：Proceedings of the 13th China Superalloys Conference
• 语种：中文
• 分类号：TG132.3
• 学会代码：ZGJS
• 会议名称：第十三届中国高温合金年会
• 会议地点：中国北京
• 主办单位：中国金属学会高温材料分会
• 学会名称：中国金属学会
• 页数：5
• 文件大小：3617k
• 原文格式：O
• 会议级别：全国

摘要

研究了吹砂压力与加热温度对第二代单晶高温合金DD406再结晶组织的影响规律。结果表明:吹砂处理后,DD406合金表层的γ′相发生了扭曲变形;随着吹砂压力增大,变形组织的厚度明显增加,γ′相的变形程度增大;在相同的加热条件下,随着吹砂压力增加,DD406合金再结晶组织厚度增加。在相同的吹砂压力条件下,随着加热温度的升高,DD406合金再结晶形态由胞状再结晶过渡到胞状再结晶与等轴再结晶同时存在的混合型再结晶组织,进而过渡到等轴再结晶组织。
The effects of grit blasting pressure and heating temperature on the recrystallization microstructure of single crystal superalloy DD406 were investigated.The results show that the γ' phase in the surface of the DD406 alloy is distorted in the cold worked region by grit blasting.With the increase of grit blasting pressure,the depth of distorted microstructure increases obviously.And degree of deformed γ' phase also increases.At the same heating temperature,with the increase of grit blasting pressure,the depth of recrystallization zone increase.On the contrary,at the same grit blasting pressure,with the increase of heating temperature,the configuration of recrystallization microstructure change from cellular recrystallization to mixed recrystallization,and then to equiaxed recrystallization.

引文

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