Experiment and Analysis of Compatibility between New Phase Change Mixed Molten Salt and 316L Stainless Steel

作     者：REN Chenxing ZHENG Chenghang GAO Xiang 

作者机构：State Key Laboratory of Clean Energy UtilizationZhejiang University Institute of Carbon NeutralityZhejiang University Baima Lake LaboratoryZhejiang University 

出 版 物：《Journal of Thermal Science》 (热科学学报(英文版))

年 卷 期：2024年第33卷第6期

页      面：2259-2273页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：the financial support by the "Pioneer" and "Leading Goose" R&D Program of Zhejiang Province (Grant No.2023C03008) the National Natural Science Foundation of China(Grant No.42341208) 

主　　题：316L stainless steel corrosion resistance heat treatment molten salt 

摘      要：Molten salt is considered as a promising heat storage and heat transfer medium due to its efficient thermophysical *** order to study the compatibility of five new mixed molten salts obtained with KNO3,NaNO3,K2CO3,Ca（NO3）2·4H2O,ZnCl2,NaF,Na2CO3,NaCl and MgO as materials and 316L stainless steel,corrosion weight loss,scanning electron microscopy,elemental analysis and XRD were used to analyze the compatibility of 316L stainless steel in the new mixed molten salt at different time and *** corrosion behavior under the conditions was studied and *** compatibility data was obtained,and the corrosion mechanism of 316L stainless steel in mixed molten salts was *** results show that the corrosion weight of 316L stainless steel increases,and the corrosion degree of grain,crystal crack depth and oxidation degree increase gradually with the increase of temperature and *** corrosion of molten salt on alloy is mainly caused by the selective diffusion loss and corrosion of Cr,Fe and other elements,and is accompanied by the formation of different metal *** formation of metal oxides can slow down metal corrosion and loss to a certain *** corrosion results under different working conditions show that 316L stainless steel has good compatibility with the new mixed molten salt,and has certain application value in the field of heat transfer and energy storage.