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材料工程  2020, Vol. 48 Issue (2): 114-122    DOI: 10.11868/j.issn.1001-4381.2018.001277
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
GH4169合金楔横轧加工过程中动态再结晶及织构演变
甘洪岩1,2, 程明1, 宋鸿武1, 陈岩1, 张士宏1, Vladimir Petrenko3
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, 明斯克 220141, 白俄罗斯
Dynamic recrystallization and texture evolution of GH4169 alloy during cross wedge rolling
GAN Hong-yan1,2, CHENG Ming1, SONG Hong-wu1, CHEN Yan1, ZHANG Shi-hong1, Vladimir Petrenko3
1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
2. School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China;
3. Physical Technical Institute, National Academy of Sciences of Belarus, Minsk 220141, Belarus
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摘要 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。
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甘洪岩
程明
宋鸿武
陈岩
张士宏
Vladimir Petrenko
关键词 GH4169合金楔横轧动态再结晶织构    
Abstract: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.
Key wordsGH4169 alloy    cross wedge rolling    dynamic recrystallization    texture
收稿日期: 2018-11-02      出版日期: 2020-03-03
中图分类号:  TG337.1  
通讯作者: 张士宏(1962-),男,研究员,博士,研究方向为塑性加工先进技术,联系地址:辽宁省沈阳市沈河区文化路72号中国科学院金属研究所(110016),E-mail:shzhang@imr.ac.cn     E-mail: shzhang@imr.ac.cn
引用本文:   
甘洪岩, 程明, 宋鸿武, 陈岩, 张士宏, Vladimir Petrenko. GH4169合金楔横轧加工过程中动态再结晶及织构演变[J]. 材料工程, 2020, 48(2): 114-122.
GAN Hong-yan, CHENG Ming, SONG Hong-wu, CHEN Yan, ZHANG Shi-hong, Vladimir Petrenko. Dynamic recrystallization and texture evolution of GH4169 alloy during cross wedge rolling. Journal of Materials Engineering, 2020, 48(2): 114-122.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2018.001277      或      http://jme.biam.ac.cn/CN/Y2020/V48/I2/114
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