W 颗粒增强 Ti 基金属-金属复合材料的准静态和动态力学行为

李谋; Rui 周睿; 杜萌; 曹远奎; 刘彬; 刘咏

doi:10.11817/j.ysxb.1004.0609.2021-37881

W 颗粒增强 Ti 基金属-金属复合材料的准静态和动态力学行为

Translated title of the contribution: Quasi-static and dynamic behavior of W particle reinforced Ti matrix metal-metal composite

李谋
, 周睿
, 杜萌
, 曹远奎
, 刘彬
, 刘咏^*

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

Ti matrix metal-metal composites exhibit good comprehensive properties such as strength and plasticity. The quasi-static and dynamic behavior of W particle reinforced Ti matrix metal-metal composites (Ti-W) were investigated by scanning electron microscopy (SEM), X-ray diffractometry (XRD), material mechanical properties test, split Hopkinson pressure bar (SHPB) and MATALAB software. The results show that Ti-W composites exhibit a dual phase heterostructure composed of β-Ti and β-W. When the content of element W in the composite is greater than 25% (mole fraction), fine W-rich phase is precipitated in the tissue. The maximum yield strength and ultimate strength of Ti-W composites can reach 1567 MPa (Ti-30W) and 1726 MPa (Ti-30W) under quasi-static condition. The maximum yield strength and ultimate strength can reach 2148 MPa (Ti-15W) and 2908 MPa (Ti-30W) under dynamic condition. Therefore, Ti-W composites exhibit obvious strain strengthening effect. By comparing the applicability of the modified Johnson-Cook (JC) constitutive model and Back-Propagation (BP) neural network model to the mechanical behavior of Ti-W composites, it is found that BP neural network can better describe the quasi-static and dynamic behavior of Ti-W composite.

Translated title of the contribution	Quasi-static and dynamic behavior of W particle reinforced Ti matrix metal-metal composite
Original language	Chinese (Simplified)
Pages (from-to)	66-75
Journal	中国有色金属学报
Volume	32
Issue number	1
Online published	20 Aug 2021
DOIs	https://doi.org/10.11817/j.ysxb.1004.0609.2021-37881
Publication status	Published - Jan 2022

Research Keywords

Ti-W 金属−金属复合材料
应变速率强化
Johnson-Cook (JC) 本构模型
Back-Propagation (BP) 神经网络模型
Ti-W metal-metal composite
strain rate strengthening
Johnson-Cook (JC) constitutive model
Back-Propagation (BP) neural network model

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@article{9a30f65aa7ed478184e770df431d6d06,

title = "W 颗粒增强 Ti 基金属-金属复合材料的准静态和动态力学行为",

abstract = "Ti 基金属-金属复合材料具有良好的强度和塑性等综合性能。采用扫描电子显微术 (SEM)、X射线衍射(XRD)、材料力学性能试验、分离式霍普金森压杆(SHPB)、MATALAB 软件等分析技术研究了 W 颗粒增强 Ti 基金属-金属复合材料 (Ti-W) 在准静态和动态下的力学行为。结果表明: Ti-W复合材料具有 β-Ti 相和 β-W 相组成的双相异质结构; 当 W 元素含量大于 25\% (摩尔分数) 时, 组织中析出细小的富W相。Ti-W 复合材料在准静态下的最高屈服强度和极限强度可达1567 MPa (Ti-30W) 和 1726 MPa (Ti-30W); 动态下最高屈服强度和极限强度可达2148 MPa ( Ti-15W) 和 2908 MPa (Ti-30W)。因此, Ti-W复合材料具有明显的应变速率强化效应。比较了改进的 Johnson-Cook (JC) 本构模型和 Back-Propagation(BP) 神经网络模型对 Ti-W 复合材料力学行为的适用性, 发现BP神经网络能更好地描述 Ti-W 复合材料在准静态和动态下的力学行为。",

keywords = "Ti-W 金属−金属复合材料, 应变速率强化, Johnson-Cook (JC) 本构模型, Back-Propagation (BP) 神经网络模型, Ti-W金屬-金屬復合材料, 應變速率強化, Johnson-Cook（JC）本構模型, Back-Propagation（BP）神經, Ti-W 金属−金属复合材料, 应变速率强化, Johnson-Cook (JC) 本构模型, Back-Propagation (BP) 神经网络模型, Ti-W metal-metal composite, strain rate strengthening, Johnson-Cook (JC) constitutive model, Back-Propagation (BP) neural network model",

author = "李谋 and 周睿 and 杜萌 and 曹远奎 and 刘彬 and 刘咏",

year = "2022",

month = jan,

doi = "10.11817/j.ysxb.1004.0609.2021-37881",

language = "繁体中文",

volume = "32",

pages = "66--75",

journal = "中国有色金属学报",

issn = "1004-0609",

publisher = "Central South University",

number = "1",

}

TY - JOUR

T1 - W 颗粒增强 Ti 基金属-金属复合材料的准静态和动态力学行为

AU - 李谋, null

AU - 周睿, null

AU - 杜萌, null

AU - 曹远奎, null

AU - 刘彬, null

AU - 刘咏, null

PY - 2022/1

Y1 - 2022/1

N2 - Ti 基金属-金属复合材料具有良好的强度和塑性等综合性能。采用扫描电子显微术 (SEM)、X射线衍射(XRD)、材料力学性能试验、分离式霍普金森压杆(SHPB)、MATALAB 软件等分析技术研究了 W 颗粒增强 Ti 基金属-金属复合材料 (Ti-W) 在准静态和动态下的力学行为。结果表明: Ti-W复合材料具有 β-Ti 相和 β-W 相组成的双相异质结构; 当 W 元素含量大于 25% (摩尔分数) 时, 组织中析出细小的富W相。Ti-W 复合材料在准静态下的最高屈服强度和极限强度可达1567 MPa (Ti-30W) 和 1726 MPa (Ti-30W); 动态下最高屈服强度和极限强度可达2148 MPa ( Ti-15W) 和 2908 MPa (Ti-30W)。因此, Ti-W复合材料具有明显的应变速率强化效应。比较了改进的 Johnson-Cook (JC) 本构模型和 Back-Propagation(BP) 神经网络模型对 Ti-W 复合材料力学行为的适用性, 发现BP神经网络能更好地描述 Ti-W 复合材料在准静态和动态下的力学行为。

AB - Ti 基金属-金属复合材料具有良好的强度和塑性等综合性能。采用扫描电子显微术 (SEM)、X射线衍射(XRD)、材料力学性能试验、分离式霍普金森压杆(SHPB)、MATALAB 软件等分析技术研究了 W 颗粒增强 Ti 基金属-金属复合材料 (Ti-W) 在准静态和动态下的力学行为。结果表明: Ti-W复合材料具有 β-Ti 相和 β-W 相组成的双相异质结构; 当 W 元素含量大于 25% (摩尔分数) 时, 组织中析出细小的富W相。Ti-W 复合材料在准静态下的最高屈服强度和极限强度可达1567 MPa (Ti-30W) 和 1726 MPa (Ti-30W); 动态下最高屈服强度和极限强度可达2148 MPa ( Ti-15W) 和 2908 MPa (Ti-30W)。因此, Ti-W复合材料具有明显的应变速率强化效应。比较了改进的 Johnson-Cook (JC) 本构模型和 Back-Propagation(BP) 神经网络模型对 Ti-W 复合材料力学行为的适用性, 发现BP神经网络能更好地描述 Ti-W 复合材料在准静态和动态下的力学行为。

KW - Ti-W 金属−金属复合材料

KW - 应变速率强化

KW - Johnson-Cook (JC) 本构模型

KW - Back-Propagation (BP) 神经网络模型

KW - Ti-W金屬-金屬復合材料

KW - 應變速率強化

KW - Johnson-Cook（JC）本構模型

KW - Back-Propagation（BP）神經

KW - Ti-W 金属−金属复合材料

KW - 应变速率强化

KW - Johnson-Cook (JC) 本构模型

KW - Back-Propagation (BP) 神经网络模型

KW - Ti-W metal-metal composite

KW - strain rate strengthening

KW - Johnson-Cook (JC) constitutive model

KW - Back-Propagation (BP) neural network model

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U2 - 10.11817/j.ysxb.1004.0609.2021-37881

DO - 10.11817/j.ysxb.1004.0609.2021-37881

M3 - RGC 21 - Publication in refereed journal

SN - 1004-0609

VL - 32

SP - 66

EP - 75

JO - 中国有色金属学报

JF - 中国有色金属学报

IS - 1

ER -

W 颗粒增强 Ti 基金属-金属复合材料的准静态和动态力学行为

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