研究了预涂稀土涂层固体粉末渗硼工艺。
The technology of pack boronizing with precoating re layer is studied.
采用固体粉末包埋渗铝法，在K438高温合金表面制备渗铝涂层。
The aluminized coating on K438 superalloy was prepared by pack cementation.
研究了在高温合金K17表面上低压固体粉末包埋（LPPC）渗铝工艺。
The aluminizing process by low press packing cementation(LPPC) on the surface of K17 superalloy was investigated in this paper.
应用推荐