Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Layer-net structure TiCN/W18Cr4V high-speed steel composite material and preparation method thereof
The invention discloses a TiCN/W18Cr4V high-speed steel composite material and a preparation method thereof. The preparation method of the composite material comprises the following steps: preparing a three-dimensional ordered TiCN layered porous ceramic skeleton by using a bidirectional freezing mold, and completely immersing the W18Cr4V high-speed steel into the TiCN layered porous ceramic skeleton by adopting air pressure infiltration to obtain the TiCN/W18Cr4V high-speed steel cutter composite material with the layer-net structure. Due to multiple toughening mechanisms such as ceramic/metal layer synergistic plastic deformation, ligament bridging, crack passivation and multi-crack propagation caused by a layer-net structure, the composite material provided by the invention has good fracture toughness, also shows high hardness and excellent wear resistance, and is an ideal material for manufacturing high-toughness cutting tools.
本发明公开了一种TiCN/W18Cr4V高速钢复合材料及其制备方法。该复合材料的制备方法，包括如下步骤：使用双向冷冻模具制备三维有序的TiCN层状多孔陶瓷骨架，采用气压浸渗将W18Cr4V高速钢完全浸入TiCN层状多孔陶瓷骨架中，得到层‑网结构TiCN/W18Cr4V高速钢刀具复合材料。由于层‑网结构所引起的如陶瓷/金属层协同塑性变形、韧带桥接、裂纹钝化和多裂纹扩展等多种增韧机制，本发明提出的复合材料具有良好的断裂韧性，还表现出高硬度和优异的耐磨性，是制作高强韧切削刀具的理想材料。
Layer-net structure TiCN/W18Cr4V high-speed steel composite material and preparation method thereof
The invention discloses a TiCN/W18Cr4V high-speed steel composite material and a preparation method thereof. The preparation method of the composite material comprises the following steps: preparing a three-dimensional ordered TiCN layered porous ceramic skeleton by using a bidirectional freezing mold, and completely immersing the W18Cr4V high-speed steel into the TiCN layered porous ceramic skeleton by adopting air pressure infiltration to obtain the TiCN/W18Cr4V high-speed steel cutter composite material with the layer-net structure. Due to multiple toughening mechanisms such as ceramic/metal layer synergistic plastic deformation, ligament bridging, crack passivation and multi-crack propagation caused by a layer-net structure, the composite material provided by the invention has good fracture toughness, also shows high hardness and excellent wear resistance, and is an ideal material for manufacturing high-toughness cutting tools.
本发明公开了一种TiCN/W18Cr4V高速钢复合材料及其制备方法。该复合材料的制备方法，包括如下步骤：使用双向冷冻模具制备三维有序的TiCN层状多孔陶瓷骨架，采用气压浸渗将W18Cr4V高速钢完全浸入TiCN层状多孔陶瓷骨架中，得到层‑网结构TiCN/W18Cr4V高速钢刀具复合材料。由于层‑网结构所引起的如陶瓷/金属层协同塑性变形、韧带桥接、裂纹钝化和多裂纹扩展等多种增韧机制，本发明提出的复合材料具有良好的断裂韧性，还表现出高硬度和优异的耐磨性，是制作高强韧切削刀具的理想材料。
Layer-net structure TiCN/W18Cr4V high-speed steel composite material and preparation method thereof
一种层-网结构TiCN/W18Cr4V高速钢复合材料及其制备方法
LIN BO (Autor:in) / XIAO HUAQIANG (Autor:in) / NIE MENG (Autor:in) / JIANG YUN (Autor:in) / WANG XUEJIAN (Autor:in) / MO TAIQIAN (Autor:in)
16.05.2023
Patent
Elektronische Ressource
Chinesisch
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