时钟135&#x000b0;轧制Ni-15%Pt合金靶材的动态再结晶动力学模型和变形行为

徐鑫; 许瑞; 冯国芳; 李伟; 申邦坡; 马胜灿

doi:10.19976/j.cnki.43-1448/TF.2025069

粉末冶金材料科学与工程 >

2026 , Vol. 31 >Issue 1: 48 - 61

DOI: https://doi.org/10.19976/j.cnki.43-1448/TF.2025069

理论研究

时钟135°轧制Ni-15%Pt合金靶材的动态再结晶动力学模型和变形行为

徐鑫 ,
许瑞 ,
冯国芳 ,
李伟 ,
申邦坡 ,
马胜灿

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1.江西理工大学稀土学院金属磁性材料及器件江西省重点实验室/赣州市稀土磁性功能材料与物理重点实验室,赣州 341000;
2.国家稀土功能材料创新中心/国瑞科创稀土功能材料(赣州)有限公司,赣州 341000;
3.江西理工大学分析测试中心,赣州 341000;
4.江西理工大学材料冶金化学学部材料科学与工程学院,赣州 341000

*视为共同一作

马胜灿,教授,博士。电话：18779140882;E-mail: mashengcan@jxust.edu.cn

收稿日期: 2025-09-09

修回日期: 2025-11-10

网络出版日期: 2026-03-10

基金资助

国家自然科学基金资助项目(52561035,52461033); 金属磁性材料及器件江西省重点实验室资助项目(2024SSY05061); 赣州市重点研发计划项目(2025GPCY0001)

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Dynamic recrystallization kinetics model and deformation behavior in Ni-15%Pt alloy target under 135° clock rolling

XU Xin ,
XU Rui ,
FENG Guofang ,
LI Wei ,
SHEN Bangpo ,
MA Shengcan

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1. Jiangxi Provincial Key Laboratory of Magnetic Metallic Materials and Devices/Ganzhou Key Laboratory for Rare Earth Magnetic Functional Materials and Physics, College of Rare Earths, Jiangxi University of Science and Technology, Ganzhou 341000, China;
2. National Rare Earth Functional Material Innovation Center/Guorui Scientific Innovation Rare Earth Functional Materials Co., Ltd, Ganzhou 341000, China;
3. Technolopy Analysis and Testing Center, Jiangxi University of Science and Technology,Ganzhou 341000, China;
4. School of Materials Science and Engineering, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China

Received date: 2025-09-09

Revised date: 2025-11-10

Online published: 2026-03-10

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摘要

本文基于加工硬化率-应力(θ-σ)曲线,建立Ni-15%Pt(质量分数)合金靶材的动态再结晶临界应变模型及动力学模型。设计时钟135°同步轧制、时钟135°异步轧制及时钟135°蛇形轧制三种工艺,结合DEFORM-3D数值模拟,对比研究同步与异步轧制下轧件的金属流动速度、等效应变分布及轧制力,分析三种工艺下轧件芯部等效应变的演化规律,并对比研究不同偏移距离下时钟135°蛇形轧制的损伤值。结果表明：时钟135°异步轧制比同步轧制能诱发更深的变形层,获得更高的金属流动速度与等效应变。此外,异步轧制过程中最大轧制力降幅达22.21%,这是因为部分能量用于形成交叉剪切应力,降低了缺陷产生的风险。时钟135°蛇形轧制下,当偏移距为8 mm时可修正异步轧制产生的板材翘曲,获得最小损伤值(0.97)。本研究对金属及合金靶材热轧生产的工艺参数设定具有重要指导意义。

关键词： 动态再结晶动力学模型; 热轧; 时钟135°蛇形轧制;; 偏移距离; Ni-15%Pt合金靶材

本文引用格式

徐鑫 , 许瑞 , 冯国芳 , 李伟 , 申邦坡 , 马胜灿 . 时钟135°轧制Ni-15%Pt合金靶材的动态再结晶动力学模型和变形行为[J]. 粉末冶金材料科学与工程, 2026 , 31(1) : 48 -61 . DOI: 10.19976/j.cnki.43-1448/TF.2025069

Abstract

Based on the work hardening rate-stress (θ-σ) curves, the critical strain model and kinetics model for dynamic recrystallization were established for Ni-15%Pt (mass fraction) alloy target. Three rolling processes were designed, such as clock 135° synchronous rolling, clock 135° asynchronous rolling, and clock 135° snake rolling. Combined with DEFORM-3D numerical simulations, a comparative study was conducted on the metal flow velocity, equivalent strain distribution, and rolling force of the rolled pieces under synchronous and asynchronous rolling processes. The evolution of the equivalent strain at the core of the rolled pieces under the three processes was analyzed, and the damage values under clock 135° snake rolling with different offset distances were compared. The results indicate that clock 135° asynchronous rolling induces a deeper deformation layer and higher metal flow velocity and equivalent strain compared to synchronous rolling. Moreover, the maximum rolling force during asynchronous rolling is reduced by up to 22.21%, as part of the energy is utilized to generate cross shear stress, thereby reducing the risk of defect formation. Under clock 135° snake rolling, a minimum damage value of 0.97 is achieved at an offset distance of 8 mm, which effectively corrects the plate warping induced by asynchronous rolling. This study provides important guidance for the parameter setting of hot rolling processes for metal and alloy targets.

Key words： dynamic recrystallization kinetics model; hot rolling; clock 135° snake rolling; offset distance; Ni-15%Pt alloy target

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