Development of metal powder composite materials by fusion processing technologies

利用熔融加工技术开发金属粉末复合材料

基本信息

批准号：
62850136
负责人：
ARAKI Takao
金额：
$ 2.88万
依托单位：
EHIME University (1989)Osaka University (1987-1988)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1989
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62850136/
关键词：
Composite materials Metal powder Carbide powder Plasma transfer arc method Laser cladding Abrasion resistance non-fused particles Oxidation resistance at high temperature レ-ザ-法耐磨耗性末溶融粒子接合性複合合金粉末遷移金属炭化物粉体強化粉体プラズマ粉体肉盛溶接複

项目摘要

The purpose of the study is to develop the metal powder composite materials having a new functional properties. The combination and mixing ratio of metal powders and carbide powders were selected, designed a compositions and prepared a suitable size of particle to get the new functional properties, which are a corrosion resistance, a heat resistance, a abrasion resistance, a oxidation resistance at high temperature.The composite materials were produced on some structural steel substrate using various metal powders and carbide powders by fusion processing technologies such as plasma transfer are method, plasma spraying laser cladding process and others. As the structural steel using as substrate was overlaid the layer of composite alloy by above method, it's surface has new functional property. This hybridization of materials will be benefit of improvement for problems encountered in many industrial areas.The composite materials produced are as follows. (1) Al-Zn-Si sytem composite mate … More rials Several mixing ratio of Al, Zn and Si metal powders were selected and mixed in a organic solution paste. The paste was applied on HT50 steel plate and melted at low temperature to make a composite alloy layer on the surface of steel plate substrate. The surface of the composite alloy layer for 50%Al more, 30-40%Zn and 10-20%Si has good corrosion resistance for sea water and heat resistance at low temperature region. (2) Cr sytem composite materials Pure Cr metal powder was deposited on mild steel and SUS304L steel plate by using plasma transfer arc method. The surface of the composite alloy layer on SUS304L steel plate consisted of the Cr non-fused particles in the Fe-Cr-Ni solid solution and has good corrosion resistance folacid and abrasion resistance (3) Carbide dispersed composite materials 6 types of carbide powders such as TiC, NbC were deposited together with 4 types of alloy powders such as Co base alloy powder on mild steel plate by using plasma transfer arc method. The composite alloy layer also, consisted of the carbide non-fused particles in the matrix. The carbide non-fused particles have good abrasion resistance than matrix. (4) NiCrAlY composite materials NiCrAlY powder was deposited on Ni base super alloy plate by plasma transfer arc method, plasma spraying, laser cladding process. The alloy layer by laser cladding process has good oxidation resistance at high temperature than other process. Less

研究的目的是开发具有新功能特性的金属粉末复合材料，选择金属粉末和碳化物粉末的组合和混合比例，设计成分并制备合适的颗粒尺寸以获得新的功能特性。以各种金属粉末和碳化物粉末为原料，采用等离子转移法、等离子体法等熔融加工技术，在某些结构钢基体上制备出具有耐腐蚀、耐热、耐磨、抗高温氧化等性能的复合材料。喷涂激光由于以结构钢为基体通过上述方法覆盖了一层复合合金，因此这种材料的杂化将有利于改善许多工业领域遇到的问题。 (1) Al-Zn-Si 系复合材料试验选择几种 Al、Zn 和 Si 金属粉末的混合比例，将其混合在有机溶液浆料中，然后将浆料涂覆在 HT50 钢板上。低温熔化在钢板基体表面形成复合合金层，该复合合金层表面含有50%以上的Al、30-40%的Zn和10-20%的Si，对海水和海水具有良好的耐腐蚀性。 (2)Cr系复合材料采用等离子转移电弧法在低碳钢和SUS304L钢板表面沉积纯Cr金属粉末。 SUS304L钢板由Fe-Cr-Ni固溶体中的Cr非熔合颗粒组成，具有良好的耐蚀性和耐磨性。 (3)碳化物分散复合材料 TiC、NbC等6种碳化物粉末与TiC、NbC等6种碳化物粉末一起沉积采用等离子转移电弧法在低碳钢板上制备的Co基合金粉末等4种合金粉末，也是由基体中的碳化物非熔合颗粒组成的复合合金层。 (4)NiCrAlY复合材料采用等离子转移电弧法、等离子喷涂、激光熔覆工艺在Ni基高温合金板材上沉积NiCrAlY粉末，经激光熔覆工艺得到的合金层具有良好的抗氧化性。耐高温能力比其他工艺低。