顶头钢成分对氧化行为及组织性能的影响  

Effect of Chemical Composition of Plug Steel on Oxidation Behavior and Microstructure and Properties

作　　者：程国祥 郑成明 卢磊 田青超[2] CHENG Guoxiang;ZHENG Chengming;LU Lei;TIAN Qingchao(Jiangxi Changhe Aircraft Industry Co.,Ltd.,Jingdezhen 333001,China;School of Materials Science and Engineering,Shanghai University,State Key Laboratory of Advanced Special Steel(Shanghai University),Shanghai 200444,China)

机构地区：[1]江西昌河飞机工业有限公司,江西景德镇333001 [2]上海大学材料科学与工程学院及省部共建高品质特殊钢冶金与制备国家重点实验室,上海200444

出　　处：《钢管》2024年第1期23-28,共6页Steel Pipe

摘　　要：在合金钢穿孔顶头表面制备合理结构的氧化膜对于延长其使用寿命具有重要意义。为了了解合金元素对氧化膜形成的影响,在1020℃的酒精和水混合溶液滴定气氛中对10Mn、15CrNiMoW2和316L进行了高温氧化,并利用扫描电子显微镜、X射线衍射仪、能谱仪、金相显微镜和显微硬度计等对氧化行为进行表征。研究发现:W促进了氧化膜尖晶石相的生长,提高了晶面间距,加剧了金属基体的内部氧化;随着Ni和Cr含量的增加,元素的分布呈现出不同的形态特征,316L中富Ni墙和富Cr氧化物墙的形成显著阻碍了O^(2-)从外部向内部氧化膜的扩散,从而有效地提高了材料的抗氧化性。Preparing a reasonably structured oxide film on the surface of the alloy steel piercing plug is of great significance for extending service life thereof.In order to identify the effect of relevant alloying elements on formation of the oxide film,high-temperature oxidation of the 10Mn,15CrNiMoW2,and 316L plugs is carried out at 1020℃in the atmosphere of drop-feeding of the mixed C2H5OH-H_(2)O solution.The oxidation behavior is characterized by means of using the SEM,the XRD,the EDS,the OM,and the microhardness tester.It is revealed via the research that the W promotes the growth of spinel phase of the oxide scale,increases the spacing of the crystal planes,and intensifies the internal oxidation of the metal matrix.The results show that as the contents of Ni and Cr increase,the distribution of relevant elements presents different morphological characteristics.The formation of Ni-enriched walls and Cr-enriched oxide walls in the 316L plug steel significantly hinder the diffusion of O^(2-) from the external oxide layer to the internal one so as effectively get the oxidation resistance of the steel improved.

关 键 词：穿孔 顶头 氧化行为 化学成分 组织 性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]