铸造技术2024，Vol.45Issue(4)：342-348,7.DOI:10.16410/j.issn1000-8365.2024.3318
液压支架缸筒材料的耐蚀性研究
Research on the Corrosion Resistance of Hydraulic Bracket Cylinder Barrel Materials
摘要
Abstract
With the development of comprehensive coal mining technology,the development and research of high corrosion-resistance materials are urgently needed.To clarify the main factors affecting the corrosion resistance of cylinder barrel materials,an electrochemical corrosion method was used to study the corrosion resistance of hydraulic bracket cylinder barrel material A and B,combined with the alloy composition,inclusion composition,microstructure and postcorrosion morphology to analyse the key factors affecting the corrosion resistance of material B.The results show that the electrochemical performance of material A is better than that of domestic material B,and a large number of"pockmarks"appear on the surface of material B after electrochemical corrosion.The mechanical properties of the material are improved as a result of the addition of C,Cr and Nb in material B together with grain refinement.However,high-density CaS-Aloxide-MnS composite inclusions are formed in the matrix due to the introduction of Ca and S during the smelting process,which deteriorates the corrosion resistance of the material.关键词
缸筒材料/微观组织/夹杂物/电化学腐蚀Key words
cylinder barrel materials/microstructure/inclusions/electrochemical corrosion分类
矿业与冶金引用本文复制引用
杨佳伟,田雷,杨磊,李小琳,兰志宇,王海丰,邓想涛..液压支架缸筒材料的耐蚀性研究[J].铸造技术,2024,45(4):342-348,7.基金项目
国家重点研发计划(2022YFB3705300) （2022YFB3705300）
国家自然科学基金(52374403,U23A20613,52004224) （52374403,U23A20613,52004224）
凝固技术国家重点实验室自主课题(2021-TS-10) （2021-TS-10）
西北工业大学测试中心基础研究开放测试基金(2022T009) （2022T009）
