张浩,李小亚,王禄越,苏一凡,唐鹏,任耀,黄宏军,石倩.AlWCrNiMo高熵涂层的阻扩散性能研究[J].表面技术,2025,54(2):127-136.
ZHANG Hao,LI Xiaoya,WANG Luyue,SU Yifan,TANG Peng,REN Yao,HUANG Hongjun,SHI Qian.Diffusion Barrier Performance of AlWCrNiMo High-entropy Coatings[J].Surface Technology,2025,54(2):127-136 |
| AlWCrNiMo高熵涂层的阻扩散性能研究 |
| Diffusion Barrier Performance of AlWCrNiMo High-entropy Coatings |
| 投稿时间：2024-02-01 修订日期：2024-08-25 |
| DOI：10.16490/j.cnki.issn.1001-3660.2025.02.010 |
| 中文关键词: 抗高温氧化涂层 AlWCrNiMo高熵涂层 阻扩散行为 抗氧化性能 氧化增重 元素互扩散 |
| 英文关键词:anti-temperature oxidation coating AlWCrNiMo high-entropy coating diffusion barrier behavior oxidation resistance oxidative weight gain elemental interdiffusion |
| 基金项目:广东省特支计划团队项目(2019BT02C629);广东省科技计划项目(2023B1212060045);广东省科学院专项项目(2022GDASZH- 2022010109) |
| 作者 | 单位 |
| 张浩 | 沈阳工业大学，沈阳 110870;广东省科学院新材料研究所 现代材料表面工程技术国家工程实验室 广东省现代表面工程技术重点实验室，广州 510651 |
| 李小亚 | 广东省科学院新材料研究所 现代材料表面工程技术国家工程实验室 广东省现代表面工程技术重点实验室，广州 510651 |
| 王禄越 | 广东省科学院新材料研究所 现代材料表面工程技术国家工程实验室 广东省现代表面工程技术重点实验室，广州 510651 |
| 苏一凡 | 广东省科学院新材料研究所 现代材料表面工程技术国家工程实验室 广东省现代表面工程技术重点实验室，广州 510651 |
| 唐鹏 | 广东省科学院新材料研究所 现代材料表面工程技术国家工程实验室 广东省现代表面工程技术重点实验室，广州 510651 |
| 任耀 | 空军装备部驻株洲地区军事代表室，湖南 株洲 412002 |
| 黄宏军 | 沈阳工业大学，沈阳 110870 |
| 石倩 | 广东省科学院新材料研究所 现代材料表面工程技术国家工程实验室 广东省现代表面工程技术重点实验室，广州 510651 |
|
| Author | Institution |
| ZHANG Hao | Shenyang University of Technology, Shenyang 110870, China;National Engineering Laboratory of Modern Materials Surface Engineering Technology,Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Institute of New Materials Guangdong Academy of Sciences, Guangzhou 510651, China |
| LI Xiaoya | National Engineering Laboratory of Modern Materials Surface Engineering Technology,Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Institute of New Materials Guangdong Academy of Sciences, Guangzhou 510651, China |
| WANG Luyue | National Engineering Laboratory of Modern Materials Surface Engineering Technology,Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Institute of New Materials Guangdong Academy of Sciences, Guangzhou 510651, China |
| SU Yifan | National Engineering Laboratory of Modern Materials Surface Engineering Technology,Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Institute of New Materials Guangdong Academy of Sciences, Guangzhou 510651, China |
| TANG Peng | National Engineering Laboratory of Modern Materials Surface Engineering Technology,Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Institute of New Materials Guangdong Academy of Sciences, Guangzhou 510651, China |
| REN Yao | Military Representative Office of the Air Force Armament Department in Zhuzhou, Hunan Zhuzhou 412002, China |
| HUANG Hongjun | Shenyang University of Technology, Shenyang 110870, China |
| SHI Qian | National Engineering Laboratory of Modern Materials Surface Engineering Technology,Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Institute of New Materials Guangdong Academy of Sciences, Guangzhou 510651, China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 解决NiAlHf涂层和镍基高温合金元素互扩散造成的抗氧化性能衰减问题。方法 采用磁控溅射技术在NiAlHf涂层与镍基高温合金N5之间沉积一层AlWCrNiMo高熵涂层作为扩散阻挡层，通过静态高温氧化测试和表征分析来评估涂层性能。结果 AlWCrNiMo具有单一的面心立方晶体结构，结构致密且与N5基体、NiAlHf面层结合良好。在1 100 ℃恒温氧化25 h后，无扩散障试样(NN)出现了连续的γʹ-Ni3Al贫铝区，而有扩散障试样(NAN)的扩散阻挡层较好地抑制了这种扩散现象。NAN试样的互扩散区+二次反应区(IDZ+SRZ)宽度为19.2 µm，远小于NN试样的30 µm。然而随着氧化时间的延长，NAN试样的阻挡性能发生衰减。50 h之后NAN试样的二次反应区(SRZ)宽度大于NN试样;100 h后扩散障被逐渐消耗变薄，200 h时彻底分解。结论 1 100 ℃恒温氧化25 h后，AlWCrNiMo高熵扩散障明显减缓了元素扩散，氧化50 h后，高熵合金中分解的W和Mo元素在一定程度上促进了TCP相的析出。在氧化初期，NAN试样优先实现了暂态氧化铝到稳态氧化铝的转变，为基体提供了良好的保护，其增重明显小于单一NN试样。 |
| 英文摘要: |
| To overcome the degradation of oxidation resistance caused by elemental interdiffusion between the NiAlHf coating and the nickel-based high-temperature alloy. A high-entropy coating of AlWCrNiMo was deposited as a diffusion barrier layer between the NiAlHf coating and the nickel-based high-temperature alloy N5 by magnetron sputtering, and static high-temperature oxidation experiments were carried out on the specimens after heat treatment. The diffusion barrier performance of the coating and the effect of the diffusion barrier layer on the antioxidant properties were evaluated by characterization means such as scanning electron microscopy, X-ray diffraction, and electron microprobe analysis. AlWCrNiMo had a single face-centered cubic crystal structure, which was dense and well-bonded with the N5 matrix and NiAlHf top layer. After oxidation at constant temperature of 1 100 ℃ for 25 h, a continuous γʹ-Ni3Al-poor zone appeared in the specimen without a diffusion barrier (marked as NN), which was well suppressed by the diffusion barrier layer in the specimen with a diffusion barrier (marked as NAN). The width of IDZ (interdiffusion zone) and SRZ (secondary reaction zone) for the NAN specimen was 19.2 µm, which was significantly smaller than the 30 µm of the NN specimen. However, as the oxidation time increased, the barrier performance of the NAN specimen declined. After 50 h, the SRZ width of the NAN specimen was greater than that of the NN specimen; The diffusion barrier was gradually consumed and thinned out after 100 hours, and the area of the γʹ-Ni3Al region of the NAN specimen was increased at this time; The diffusion barrier was reduced to 1.7 µm after 150 h, compared with 3.3 µm in the 25 h; And the diffusion barrier was completely disintegrated in 200 h, leading to its basic failure. The diffusion barrier was completely decomposed at 200 h, which led to its basic failure, and holes appeared at the interface of the diffusion barrier, and all the coatings were changed into the γʹ-Ni3Al phase. The oxidized weight gain of NN and NAN specimens was much smaller than that of the uncoated specimens; The weight gain of the uncoated specimens after oxidation at 1 100 ℃ for 150 h was 1.91 mg/cm2, that of the NN specimens after oxidation at 1 100 ℃ for 150 h was 0.42 mg/cm2, while that of the NAN specimens was only 0.375 mg/cm2. After 200 h of oxidation, the weight gain of the NAN specimen and the NN specimen was basically the same:0.521 mg/cm2 and 0.527 mg/cm2. After isothermal oxidation at 1 100 ℃ for 25 h, the AlWCrNiMo high-entropy diffusion barrier significantly slowed down elemental diffusion. After 50 h of oxidation, the decomposed W and Mo elements in the high-entropy alloy promoted the precipitation of TCP phases. At the early stage of oxidation, the NAN specimen preferentially realized the transition from transient alumina to steady-state alumina, which provided good protection for the substrate, and its weight gain was significantly smaller than that of the single NN specimen. After 200 h of oxidation, the high-entropy diffusion barrier decomposed and failed, and holes appeared at the diffusion barrier interface, which was detrimental to the bonding of the coating. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501715号