烧结W-10Re合金在不同条件下的变形行为及组织演变

IF 4.2 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-03-17 DOI:10.1016/j.ijrmhm.2025.107158

Ya-Feng Wang , Guo-Fan Li , Jiu-Xiong Chen , Lai-Ma Luo , Yong-Qiang Qin , Fei Sun , Di Dong , Yu-Cheng Wu

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引用次数: 0

摘要

在温度为1500 ~ 1600℃，应变速率为0.001 ~ 0.1 s−1的条件下，对烧结后W-10Re合金的高温压缩性能进行了研究。流动应力分析的实验结果表明，变形主要由动态恢复（DRV）控制，同时也观察到动态再结晶（DRX），特别是在应变速率为0.001 s−1时。在安全加工区域内，低角度晶界的比例随着温度的升高和应变速率的降低而降低。认为最佳加工条件为1600℃和1 s−1。合金中有再结晶核，随着温度的升高和应变速率的降低而增大。

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Deformation behaviors and microstructure evolution of sintered W-10Re alloy under different conditions

The high-temperature compressive properties of sintered W-10Re alloy were evaluated at temperatures of 1500–1600 °C and strain rates of 0.001–0.1 s⁻¹. The experimental results obtained from flow stress analysis indicate that deformation is primarily governed by dynamic recovery (DRV), with dynamic recrystallization (DRX) also observed, particularly at a strain rate of 0.001 s⁻¹. Within the safe processing region, the proportion of low-angle grain boundaries (LAGBs) was found to decrease with increasing temperature and decreasing strain rate. It is considered that the optimal processing condition is the 1600 °C and 1 s⁻¹. Recrystallization nuclei were observed in the alloy, growing with increasing temperature and decreasing strain rate.

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来源期刊

$International Journal of Refractory Metals & Hard Materials$

International Journal of Refractory Metals & Hard Materials 工程技术-材料科学：综合

CiteScore

7.00

自引率

13.90%

发文量

236

审稿时长

35 days

期刊介绍： The International Journal of Refractory Metals and Hard Materials (IJRMHM) publishes original research articles concerned with all aspects of refractory metals and hard materials. Refractory metals are defined as metals with melting points higher than 1800 °C. These are tungsten, molybdenum, chromium, tantalum, niobium, hafnium, and rhenium, as well as many compounds and alloys based thereupon. Hard materials that are included in the scope of this journal are defined as materials with hardness values higher than 1000 kg/mm2, primarily intended for applications as manufacturing tools or wear resistant components in mechanical systems. Thus they encompass carbides, nitrides and borides of metals, and related compounds. A special focus of this journal is put on the family of hardmetals, which is also known as cemented tungsten carbide, and cermets which are based on titanium carbide and carbonitrides with or without a metal binder. Ceramics and superhard materials including diamond and cubic boron nitride may also be accepted provided the subject material is presented as hard materials as defined above.