Scholarlink

<p>Surface modification of 2205 duplex stainless steel has been conducted using electron beam surface remelting (EBSR) with varying electron beam parameters, (including beam current and scanning speed. The macroscopic morphology, microstructural characteristics (crystal types), and elemental composition of the samples have been examined using scanning electron microscopy (SEM) to investigate the influence of EBSR beam current and scanning speed on the microstructure and macroscopic properties of 2205 duplex stainless steel. The hardness of the remelted samples has been measured using a microhardness tester and compared with that of the original material. This material not only exhibits excellent resistance to chloride stress corrosion cracking (SCC), but also possesses outstanding pitting and crevice corrosion resistance, leading to its wide application in seawater desalination and chemical production. Hence, its tribological performance in 3.5% NaCl solution was investigated. The results indicate that EBSR treatment induces significant alterations in the surface morphology of the stainless steel, characterized by reduced surface roughness and increased dislocation density. The predominant texture types observed are S {123} &lt; 643 &gt; , R {124} &lt; 211 &gt; , and Brass R {236} &lt; 385 &gt; . Comparative experiments reveal that the beam current exerts a significantly greater influence on the properties of the stainless steel than the scanning speed. The maximum surface hardness of 309 HV, along with the lowest wear volume and wear rate during wear testing, is achieved at a scanning speed of 350&#xa0;mm/min and a beam current of 17&#xa0;mA.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of remelting treatment on the friction and wear properties of 2205 duplex stainless steel in 3.5% NaCl solution

  • 期刊论文

  • 发表日期：

    2026年4月27日

查看全文
  • Guanghui Zhao,
  • Yanfei Wu,
  • Qi Wang,
  • Juan Li,
  • Yugui Li,
  • Yufang Wang

摘要

Surface modification of 2205 duplex stainless steel has been conducted using electron beam surface remelting (EBSR) with varying electron beam parameters, (including beam current and scanning speed. The macroscopic morphology, microstructural characteristics (crystal types), and elemental composition of the samples have been examined using scanning electron microscopy (SEM) to investigate the influence of EBSR beam current and scanning speed on the microstructure and macroscopic properties of 2205 duplex stainless steel. The hardness of the remelted samples has been measured using a microhardness tester and compared with that of the original material. This material not only exhibits excellent resistance to chloride stress corrosion cracking (SCC), but also possesses outstanding pitting and crevice corrosion resistance, leading to its wide application in seawater desalination and chemical production. Hence, its tribological performance in 3.5% NaCl solution was investigated. The results indicate that EBSR treatment induces significant alterations in the surface morphology of the stainless steel, characterized by reduced surface roughness and increased dislocation density. The predominant texture types observed are S {123} < 643 > , R {124} < 211 > , and Brass R {236} < 385 > . Comparative experiments reveal that the beam current exerts a significantly greater influence on the properties of the stainless steel than the scanning speed. The maximum surface hardness of 309 HV, along with the lowest wear volume and wear rate during wear testing, is achieved at a scanning speed of 350 mm/min and a beam current of 17 mA.