(太原理工大學表面工程研究所，太原030024)
摘 要: 利用雙層輝光離子滲金屬技術可在工業(yè)純鐵表面形成鐵、鎢、鉬、鈷時效合金。研究了形成這種合金的表面冶金工藝和滲層組織狀態(tài)、滲層成分分布以及滲金屬工藝參數改變對滲層厚度及滲層成分分布的影響。結果表明，表層W，Mo，Co含量可達到高Co時效合金W11Mo7Co23的水平，Co含量為1 8%～30%，W含量為7%～17%，Mo含量為5%～9%。
關鍵字: 時效硬化；合金；表面冶金
（Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P.R. China）
Abstract:Surface age-hardening alloy of Fe-W-Mo-Co may be formed on surface of industrial pure iron by use of double glow plasma surface alloying technique. Surface metallurgical technology of the surface alloy, structure and distribution of composition in alloying layer, and influence on change of technological parameter of thickness of alloying layer and distribution of composition were investigated. The results showed that the contents of W, Mo, Co in surface reach the content level of age-hardening alloy of W11Mo7Co23, contents of Co ranges from 18% to 30%, that of W ranges from 7% to 17% and that of Mo ranges from 5% to 9%.
Key words: age hardening; alloy; surface metallurgy
