Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Iron-based rare earth hard alloy, preparation method and application thereof, iron-based rare earth hard alloy reinforced form relieved tooth and preparation method thereof
The invention provides an iron-based rare earth hard alloy, a preparation method and application thereof, an iron-based rare earth hard alloy reinforced form relieved tooth and a preparation method thereof, and belongs to the technical field of form relieved teeth. The ultra-coarse WC powder is adopted as a hard phase and has good wear resistance, the iron-based powder is adopted as a binding phase, the wettability and strength of the binding phase are improved through the solid solution strengthening effect of alloying nickel and cobalt, so that a multi-element ordered solid solution is formed, meanwhile, the rare earth oxide La2O3 is added into the iron-based binding phase for binding phase component optimization, and the wear resistance of the alloy is improved. The toughening and grain boundary purifying effects of the rare earth La2O3 are exerted, and the coarse-grain iron-based rare earth hard alloy with high hardness and good wear resistance can be obtained; when the iron-based rare earth hard alloy is used for strengthening the relieved tooth, the cost of the strengthened relieved tooth can be reduced, and a good protection effect can be achieved, so that the maximum cost performance is obtained, and the problems of quick abrasion, frequent replacement, low cost performance and the like caused by low hardness of the relieved tooth of a key engineering part in the actual use process are solved.
本发明提供了一种铁基稀土硬质合金及其制备方法和应用、铁基稀土硬质合金强化铲齿及其制备方法，属于铲齿技术领域。本发明采用超粗WC粉作为硬质相，具有良好的耐磨性，铁基粉末作为粘结相，通过合金化镍、钴的固溶强化作用，改善粘结相的润湿性与强度，从而形成多元有序固溶体，同时在铁基粘结相中添加稀土氧化物La2O3进行粘结相成分优化，发挥稀土La2O3的增韧与净化晶界的作用，可获得硬度高、耐磨性好的粗晶铁基稀土硬质合金；利用该铁基稀土硬质合金强化铲齿，能降低强化铲齿的成本并获得良好的保护作用，从而获得最大性价比，解决了关键工程部件铲齿在实际使用过程中硬度低导致的磨损快、更换频繁和性价比低等问题。
Iron-based rare earth hard alloy, preparation method and application thereof, iron-based rare earth hard alloy reinforced form relieved tooth and preparation method thereof
The invention provides an iron-based rare earth hard alloy, a preparation method and application thereof, an iron-based rare earth hard alloy reinforced form relieved tooth and a preparation method thereof, and belongs to the technical field of form relieved teeth. The ultra-coarse WC powder is adopted as a hard phase and has good wear resistance, the iron-based powder is adopted as a binding phase, the wettability and strength of the binding phase are improved through the solid solution strengthening effect of alloying nickel and cobalt, so that a multi-element ordered solid solution is formed, meanwhile, the rare earth oxide La2O3 is added into the iron-based binding phase for binding phase component optimization, and the wear resistance of the alloy is improved. The toughening and grain boundary purifying effects of the rare earth La2O3 are exerted, and the coarse-grain iron-based rare earth hard alloy with high hardness and good wear resistance can be obtained; when the iron-based rare earth hard alloy is used for strengthening the relieved tooth, the cost of the strengthened relieved tooth can be reduced, and a good protection effect can be achieved, so that the maximum cost performance is obtained, and the problems of quick abrasion, frequent replacement, low cost performance and the like caused by low hardness of the relieved tooth of a key engineering part in the actual use process are solved.
本发明提供了一种铁基稀土硬质合金及其制备方法和应用、铁基稀土硬质合金强化铲齿及其制备方法，属于铲齿技术领域。本发明采用超粗WC粉作为硬质相，具有良好的耐磨性，铁基粉末作为粘结相，通过合金化镍、钴的固溶强化作用，改善粘结相的润湿性与强度，从而形成多元有序固溶体，同时在铁基粘结相中添加稀土氧化物La2O3进行粘结相成分优化，发挥稀土La2O3的增韧与净化晶界的作用，可获得硬度高、耐磨性好的粗晶铁基稀土硬质合金；利用该铁基稀土硬质合金强化铲齿，能降低强化铲齿的成本并获得良好的保护作用，从而获得最大性价比，解决了关键工程部件铲齿在实际使用过程中硬度低导致的磨损快、更换频繁和性价比低等问题。
Iron-based rare earth hard alloy, preparation method and application thereof, iron-based rare earth hard alloy reinforced form relieved tooth and preparation method thereof
一种铁基稀土硬质合金及其制备方法和应用、铁基稀土硬质合金强化铲齿及其制备方法
ZHANG FAN (Autor:in) / YANG SHUZHONG (Autor:in) / HONG KAN (Autor:in) / XIAO YINGYI (Autor:in) / TANG WEI (Autor:in) / PU JIAN (Autor:in) / LAN XIXIN (Autor:in) / ZHONG ZHAODONG (Autor:in) / JIANG JIAFA (Autor:in) / ZHOU XINHUA (Autor:in)
09.05.2023
Patent
Elektronische Ressource
Chinesisch
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