GH3535合金熔盐腐蚀长周期预测模型数据集

本数据集对应指标完成GH3535合金在熔盐中的长期腐蚀，包含GH3535合金在FLiBe和FLiNaK熔盐温差腐蚀回路最低温和最高温长周期腐蚀（1000小时）的腐蚀数据。基于多次、重复、不同条件的腐蚀评价，确定材料腐蚀与熔盐中含有的杂质种类和杂质量有关，确定了GH3535合金在氟化物熔盐中的腐蚀规律：在腐蚀初期，熔盐中杂质驱动材料发生快速腐蚀；随着腐蚀反应进行，杂质逐渐被消耗，材料腐蚀速率减缓，腐蚀深度达到一个恒定值。通过研究确定GH3535合金在满足堆用要求的氟化物熔盐中腐蚀200小时后，腐蚀深度会趋于恒定。因此基于此规律，进行了长周期的腐蚀评价，对各种元素在GH3535合金表面和截面中的分布进行研究，确定GH3535合金在氟化物熔盐（FLiBe和FLiNaK）中的腐蚀形态、腐蚀深度和腐蚀规律等。通过腐蚀评价，确定熔盐堆用镍基合金——GH3535在满足堆用要求的氟化物熔盐中具有优异的耐腐蚀性。

This dataset is intended for the long-term corrosion study of GH3535 alloy in molten salts. It includes 1000-hour long-term corrosion data collected at the lowest and highest temperature zones of a temperature-gradient corrosion loop for GH3535 alloy in FLiBe and FLiNaK molten salts, respectively. Based on multiple repeated corrosion evaluations under different conditions, it was determined that material corrosion correlates with the types and contents of impurities present in the molten salt, and the corrosion regularity of GH3535 alloy in fluoride molten salts was elucidated: during the initial corrosion stage, impurities in the molten salt induce rapid corrosion of the material; as the corrosion reaction progresses, impurities are gradually consumed, the corrosion rate of the alloy slows, and the corrosion depth stabilizes at a constant value. Further studies confirmed that after 200 hours of corrosion in fluoride molten salts meeting reactor service requirements, the corrosion depth of GH3535 alloy tends to stabilize. Accordingly, long-term corrosion evaluations were carried out based on this regularity, with the distribution of various elements on the surface and cross-section of GH3535 alloy investigated, to determine the corrosion morphology, corrosion depth, and corrosion regularity of GH3535 alloy in fluoride molten salts (FLiBe and FLiNaK). Through these corrosion evaluations, it was verified that GH3535, a nickel-based alloy for molten salt reactors, possesses excellent corrosion resistance in fluoride molten salts that meet reactor service requirements.

搜集汇总

背景与挑战

背景概述

该数据集提供了GH3535合金在FLiBe和FLiNaK熔盐中长达1000小时的腐蚀实验数据，用于长周期腐蚀预测模型研究。它揭示了合金在氟化物熔盐中的腐蚀规律：初期因杂质驱动快速腐蚀，随后速率减缓并趋于恒定深度。通过分析元素分布和腐蚀形态，数据集证实了GH3535合金在堆用要求熔盐中具有优异的耐腐蚀性能。