High-temperature oxidation and hot corrosion behavior of the Inconel 738LC coating with and without Al2O3-CNTs

IF 1.7 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI:10.1515/jmbm-2022-0294

Kadhim F. Alsultani, H. Majidi, Sara H. Abdulameer, M. Karkush

引用次数: 0

Abstract

Abstract The high-temperature corrosion of turbine blades poses a serious threat to the efficiency of electrical gas power stations, which results in heavy economic losses. In the present study, the Inconel 738 low-carbon steel utilized in the turbine blades was coated on alumina (Al2O3) in a variety of percentages of carbon nanotubes (4, 6, and 8 wt%) using the plasma spray technique. The behavior of the Inconel 738LC alloy with and without artificial ash (67 wt% H2SO4 and 33 wt% V2O5) at different temperatures (650, 750, 850, and 950°C) was investigated. The cycles of hot corrosion and oxidation were achieved in an electric furnace for 10 cycles of 5 h each. After each cycle, the weight changes were measured and recorded. The SEM and XRD achieved for all the specimens were noted, before and post the corrosion.

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添加和不添加Al2O3-CNTs的Inconel 738LC涂层的高温氧化和热腐蚀行为

燃气轮机叶片的高温腐蚀严重威胁着燃气电站的运行效率，造成巨大的经济损失。在本研究中，使用等离子喷涂技术将用于涡轮叶片的Inconel 738低碳钢涂覆在氧化铝(Al2O3)上，其碳纳米管的比例不同(4、6和8 wt%)。研究了在不同温度(650、750、850和950℃)下，添加和不添加人工灰分(67% H2SO4和33% V2O5)的Inconel 738LC合金的行为。在电炉中进行了热腐蚀和氧化循环，每次循环5 h，共10次。每个周期结束后，测量并记录体重变化。在腐蚀前后，记录了所有试样的SEM和XRD。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the Mechanical Behavior of Materials Materials Science-Materials Science (miscellaneous)

CiteScore

3.00

自引率

11.10%

发文量

审稿时长

30 weeks

期刊介绍： The journal focuses on the micromechanics and nanomechanics of materials, the relationship between structure and mechanical properties, material instabilities and fracture, as well as size effects and length/time scale transitions. Articles on cutting edge theory, simulations and experiments – used as tools for revealing novel material properties and designing new devices for structural, thermo-chemo-mechanical, and opto-electro-mechanical applications – are encouraged. Synthesis/processing and related traditional mechanics/materials science themes are not within the scope of JMBM. The Editorial Board also organizes topical issues on emerging areas by invitation. Topics Metals and Alloys Ceramics and Glasses Soils and Geomaterials Concrete and Cementitious Materials Polymers and Composites Wood and Paper Elastomers and Biomaterials Liquid Crystals and Suspensions Electromagnetic and Optoelectronic Materials High-energy Density Storage Materials Monument Restoration and Cultural Heritage Preservation Materials Nanomaterials Complex and Emerging Materials.