Transactions of Materials and Heat Treatment

Title：Inheritance of texture and its relationship with resistance directionality during thin strip preparation process of NiCrAlFe alloy

Authors： Li Yamin1 2 Fan Shutong1 Wu Xianyin1 Liu Hongjun1 2

Unit： 1. Department of Materials Science and Engineering Lanzhou University of Technology 2. State Key Laboratory of Advanced Processing and Reuse of Nonferrous Metals Lanzhou University of Technology

KeyWords： NiCrAlFe precision resistance alloy thin strip texture inheritance resistance directionality orientation density

ClassificationCode：TG132.2

year,vol(issue):pagenumber：2024,49(11):62-69

Abstract：

The texture has a significant impact on the resistance directionality of NiCrAlFe precision resistance alloy. Therefore, the genetic law of texture in different preparation stages of alloy thin strip was studied by using electron backscatter diffraction (EBSD) technology. The results indicate that the deformation texture and recrystallization texture in the alloy are inherited and undergo mutual transformation in different preparation stages. Copper texture {112}<111>, S texture {123}<634> and R texture {124}<211> significantly increase the resistance directionality of alloy in the 45° and 65° directions, and S texture and R texture have a greater impact on the resistance directionality of quenched and tempered alloys. The electrical properties of NiCrAlFe precision resistance alloy are highly sensitive to the processing technology. Considering the inheritance and mutual transformation of texture in different preparation stages, the hot rolling, cold rolling, quenching and tempering processes in the preparation of alloy thin strips should be formulated synergistically. Hot rolling process is used as much as possible for the thinning of the alloy, while cold rolling process aims to control the surface quality and thickness deviation. Quenching and tempering processes should control the orientation density of S texture and R texture.

Funds：

甘肃省教育科技创新项目（2023A-028）

作者简介：李亚敏（1973-），女，博士，副教授 E-mail：leeyamin@163.com

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