CAJ | 학술논문

从一系列铜基粉末冶金材料配方中选出几种具有代表性的配方进行实验,研究铝含量对铜基粉末冶金材密度、抗压强度、摩擦磨损等性能的影响.结果表明:在铜基粉末冶金材料中添加铝元素后,材料的密度、抗压强度摩擦因数都降低,磨损率明显下降;随着铝含量的增加,材料的磨损率大幅下降,但摩擦因数变化不明显;在铜基粉冶金中加入铝元素后,在显微组织中有新相生产,使基体组织细化,因而铜基粉末冶金的整体材料性能得到提高.
종일계렬동기분말야금재료배방중선출궤충구유대표성적배방진행실험,연구려함량대동기분말야금재밀도、항압강도、마찰마손등성능적영향.결과표명:재동기분말야금재료중첨가려원소후,재료적밀도、항압강도마찰인수도강저,마손솔명현하강;수착려함량적증가,재료적마손솔대폭하강,단마찰인수변화불명현;재동기분야금중가입려원소후,재현미조직중유신상생산,사기체조직세화,인이동기분말야금적정체재료성능득도제고.
Several typical formulae were selected from a series of copper powder alloy material formulae,and the experi-ments were carried out to study the effects of aluminum content on the density,hardness,compressive strength and tribolog-ical properties of copper based powder alloy materials. The results show that the material density,compressive strength and friction coefficient are decreased,the wear rate is decreased obviously when adding aluminum element in the copper based powder alloy materials. With the increase of aluminum content,the wear rate is decreased greatly,while the friction coeffi-cient changes not obvious. A new phase is produced in the microstructure when adding aluminum element in the copper based powder alloy materials,which results in the refinement of matrix microstructure and improves the performances cop-per based powder alloy materials.