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GH4169合金楔横轧加工过程中动态再结晶及织构演变
Dynamic recrystallization and texture evolution of GH4169 alloy during cross wedge rolling

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甘洪岩 1,2   程明 1   宋鸿武 1   陈岩 1   张士宏 1 *   Vladimir Petrenko 3  
文摘 为研究GH4169合金楔横轧加工过程中动态再结晶及织构演变规律,采用金相显微镜(OM)和电子背散射衍射(EBSD)对30%,50%两种断面收缩率下GH4169合金楔横轧件表层与心部的微观组织、晶体取向及织构进行分析。结果表明:GH4169合金楔横轧加工过程中,随着动态再结晶的发生,晶体取向逐渐变得随机化分布;轧制表层大角度晶界数量较轧件心部多,轧件表层织构强度变化不大,心部织构强度明显增强;经过楔横轧变形后织构发生转动,原始态织构类型为{001}〈110〉,{111}〈110〉,{111}〈011〉,轧制后主要织构类型为{001}〈010〉,{112}〈110〉,{110}〈111〉,{110}〈112〉;GH4169合金楔横轧件动态再结晶及织构演变规律是由楔横轧特殊变形特点决定的。
其他语种文摘 To study the dynamic recrystallization and texture evolution of GH4169 alloy during the cross wedge rolling processing,the microstructure,crystal orientation and texture in the surface and core of the GH4169 alloy with the area reduction of 30% and 50% were analyzed by the metallographic microscope(OM)and electron backscatter diffraction(EBSD),respectively.The results show that the crystal orientation gradually tends to be random with the occurrence of dynamic recrystallization during the cross wedge rolling process of GH4169 alloy.There are more high-angle grain boundaries in the rolled surface than those in the core.No evident change of the texture intensity in the rolled surface can be observed,while the core texture intensity increases obviously.The textures have rotated after the cross wedge rolling and the previous types of{001}〈110〉,{111} 〈110〉,{111}〈011〉change to the types of{001}〈010〉,{112}〈110〉,{110}〈111〉,{110}〈112〉.The dynamic recrystallization and texture evolution of GH4169 alloy are dominated by the special deformation characteristics of the cross wedge rolling.
来源 材料工程 ,2020,48(2):114-122 【核心库】
DOI 10.11868/j.issn.1001-4381.2018.001277
关键词 GH4169合金 ; 楔横轧 ; 动态再结晶 ; 织构
地址

1. 中国科学院金属研究所, 沈阳, 110016  

2. 中国科学技术大学材料科学与工程学院, 沈阳, 110016  

3. 白俄罗斯科学院物理技术研究所, 白俄罗斯, 明斯克, 220141

语种 中文
文献类型 研究性论文
ISSN 1001-4381
学科 金属学与金属工艺
基金 国家自然科学基金国家杰出青年科学基金
文献收藏号 CSCD:6675539

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引证文献 4

1 田伟 冷轧变形量和热处理状态对GH4169合金板材组织及硬度的影响 航空材料学报,2023,43(2):33-41
CSCD被引 1

2 邹志鹏 34CrNi3MoV合金钢的动态再结晶行为 金属热处理,2023,48(5):32-40
CSCD被引 2

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