Scholarlink

<p>The 34CrMo4 steel was coated with thin layers of C, Cr, Ni, and Ag using the magnetron sputtering method, respectively. The effects of these coatings on the hydrogen embrittlement resistance and mechanical properties of 34CrMo4 steel were systematically evaluated using the small punch test (SPT) and tensile testing. These coatings preserved the intrinsic mechanical properties of the steel by serving as effective hydrogen barriers. Compared with that of the uncoated specimen, the yield load of the C-, Cr-, Ni-, and Ag-coated 34CrMo4 steel after hydrogen charging increased by 17.7, 2.3, 17.1, and 7.1%, respectively. Coating type and adhesion strength strongly affect hydrogen embrittlement resistance. The maximum load, tensile strength, and strain capacity also increased substantially in the coated samples. These results demonstrate that surface coatings can effectively protect the steel from hydrogen damage.</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

Improving Hydrogen Embrittlement Resistance and Mechanical Properties of 34CrMo4 Steel via Surface Coating

  • 期刊论文

  • 发表日期：

    2026年1月5日

查看全文
  • Zhong Zhang,
  • Xia-Kang Ma,
  • Jia-Cheng Lyv,
  • Wencai Leng,
  • Hong-Liang Ge,
  • Ping-Zhan Si

摘要

The 34CrMo4 steel was coated with thin layers of C, Cr, Ni, and Ag using the magnetron sputtering method, respectively. The effects of these coatings on the hydrogen embrittlement resistance and mechanical properties of 34CrMo4 steel were systematically evaluated using the small punch test (SPT) and tensile testing. These coatings preserved the intrinsic mechanical properties of the steel by serving as effective hydrogen barriers. Compared with that of the uncoated specimen, the yield load of the C-, Cr-, Ni-, and Ag-coated 34CrMo4 steel after hydrogen charging increased by 17.7, 2.3, 17.1, and 7.1%, respectively. Coating type and adhesion strength strongly affect hydrogen embrittlement resistance. The maximum load, tensile strength, and strain capacity also increased substantially in the coated samples. These results demonstrate that surface coatings can effectively protect the steel from hydrogen damage.