CAJ | 학술논문

以浓硫酸处理过的粉煤灰颗粒为增强体,Al-20%Si合金粉为基体.采用粉末冶金法制得粉煤灰颗粒增强铝基复合材料,并对复合材料的微观形貌及力学性能进行了分析.结果表明:粉煤灰颗粒表面被腐蚀,比表面积大大增大;在复合材料中粉煤灰颗粒分布较均匀,有少量气孔存在;随着粉煤灰含量的提高,该材料硬度逐渐增大,而密度逐渐减小.
이농류산처리과적분매회과립위증강체,Al-20%Si합금분위기체.채용분말야금법제득분매회과립증강려기복합재료,병대복합재료적미관형모급역학성능진행료분석.결과표명:분매회과립표면피부식,비표면적대대증대;재복합재료중분매회과립분포교균균,유소량기공존재;수착분매회함량적제고,해재료경도축점증대,이밀도축점감소.
The powder metallurgy technique was used to prepare fly-ash-reinforced Al-Si alloy composites, and the microstructure and mechanical properties were analyzed. The results show that the surface of fly-ash particles were eroded; fly-ash in the composites distributes uniformly and a small amount of the gas hole comes into being in the composites. Hardness of the composites increases significantly and density decreases with the increase of fly ash particles content.