[1]宋国栋,张聪惠.核用锆合金加工过程织构调控研究现状[J].中国材料进展,2026,45(11):060-69.
　SONG Guodong,ZHANG Conghui.An Overview of Recent Advances in Texture Regulation during the Manufacture of Nuclear Zirconium Alloys[J].MATERIALS CHINA,2026,45(11):060-69.
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核用锆合金加工过程织构调控研究现状()

中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
45
期数:
2026年11
页码:
060-69
栏目:
出版日期:
2026-10-31

文章信息/Info

Title:
An Overview of Recent Advances in Texture Regulation during the Manufacture of Nuclear Zirconium Alloys
作者:
宋国栋; 张聪惠
西安建筑科技大学 冶金工程学院，陕西 西安 710055
Author(s):
SONG Guodong; ZHANG Conghui
Xi’an University of Architecture and Technology，School of metallurgical engineering，Xi’an 710055, China
关键词:
核用锆合金; 织构调控; 核燃料组件; 热机械加工; 塑性变形机制
Keywords:
Nuclear zirconium alloys; Texture regulation; Nuclear fuel assembliesThermomechanical processing; Plastic deformation mechanisms
文献标志码:
A
摘要:
锆合金因其中子吸收截面低、耐蚀性优异及高温力学性能良好，被广泛用于制造核反应堆燃料组件的包壳管、定位格架和压力管等关键结构部件。围绕核用锆合金在热机械加工全流程中的织构调控问题，系统梳理了合金体系演变与典型工艺路线，并从相变晶体学特征、位错滑移与孪生行为、动态再结晶机制三个层面，深入分析了塑性变形对微观组织及织构演化规律的内在影响。分别针对定位格架用板材、压力管和包壳管三类主要产品，重点论述了织构调控的工艺策略与演化特征。板材可通过调节热轧温度与变形量实现基面双峰织构向TD织构的转变，进而控制FND织构组分，并经冷轧进一步降低FND以获取目标织构；挤压管的高FTD织构组分主要取决于热挤压工艺参数，优化条件约为800 ℃（α:β≈1:1）配合10:1挤压比；包壳管的织构则主要由皮尔格冷轧的Q值（减壁量与减径量之比）决定，首道次应以减径为主（Q<1），最终道次需减壁优先（Q>1），从而形成理想的径向织构。最后，针对当前研究中多场耦合机制不清、全流程定量预测不足等问题，指出了未来的研究方向，包括构建多尺度物理模型、开发新型合金成分体系以及引入机器学习驱动的智能化工艺设计等。
Abstract:
Zirconium(Zr) alloys are used in nuclear reactor core components (cladding，grids，pressure tubes) due to their low neutron absorption，corrosion resistance，and hightemperature strength.Focusing on the issue of texture regulation during the entire thermomechanical processing of Zr alloys for nuclear service，this paper systematically reviews the evolution of alloy systems and typical process routes.This paper analyzes in depth the intrinsic influences of plastic deformation on microstructure and texture evolution，addressing three key aspects:phase transformation，dynamic recrystallization，dislocation slip and twinning.This paper highlights the process strategies and texture evolution characteristics for three main product types，namely spacer grid，pressure tubes，and cladding tubes.For sheets，texture regulation is achieved through adjusting hotrolling temperature and reduction to convert the basal bimodal texture into a TD texture，thus controlling the FND component，followed by additional cold rolling to further reduce FND and obtain the desired texture.For extruded tubes，the high FTD texture component mainly depends on the hot extrusion parameters，with the optimized conditions being approximately 800? ℃ (α:β ≈ 1:1) combined with an extrusion ratio of 10:1.For cladding tubes, the texture is largely governed by the Qratio in Pilger cold rolling.The first pass should be diameter reduction dominant (Q?< 1)，while the final pass needs to prioritize wall reduction (Q?>?1)，so as to eventually form the desired radial texture.Finally，in view of the current deficiencies such as unclear multifield coupling mechanisms and insufficient quantitative prediction over the entire process chain，this paper points out future research directions，including the construction of multiscale physical models，the development of novel alloy compositions，and the introduction of machinelearningdriven intelligent process design.
更新日期/Last Update: 2026-09-28