Modification of AISI 304 Stainless Steel Surface by the Low Temperature Complex Salt Bath Nitriding at 430^|^deg;C

DOI Web Site 参考文献45件
  • Wang Jun
    School of Manufacturing Science and Engineering, Sichuan University State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
  • Lin Yuanhua
    State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
  • Yan Jing
    Southwest Oil and Gasfield Company Research Institute of Natural Gas
  • Zeng Dezhi
    State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
  • Huang Runbo
    School of Manufacturing Science and Engineering, Sichuan University
  • Hu Zejing
    School of Manufacturing Science and Engineering, Sichuan University

書誌事項

タイトル別名
  • Modification of AISI 304 Stainless Steel Surface by the Low Temperature Complex Salt Bath Nitriding at 430°C

この論文をさがす

説明

Salt bath nitriding of type 304 austenite stainless steels conducted at low temperature, 430°C, using a complex salt bath heat-treatment. Microstructure and the properties of the nitrided surface were systematically evaluated. Experimental results revealed that when 304 stainless steel subjected to complex salt bathing nitrided at such temperature less than 4 hours, the main phase of the nitrided modify layer was the expanded austenite (S phase) generally. When the treatment times prolonged up to 8 hours and more, S phase was formed and subsequently transformed partially into CrN, and then the secondary CrN phase precipitated. All treatments can effectively increase the surface hardness. And the nitrided layer depth thickened intensively with the increasing nitriding time. The growth of the nitrided layers took place mainly by nitrogen diffusion according to the expected parabolic rate law. Low temperature nitriding can improve the corrosion resistance against diluted hydrochloric acid. After nitriding for 16 hours, the sample has the best corrosion resistance than others though there are many CrN transformed in the layer.

収録刊行物

参考文献 (45)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ