粉末冶金技术2024，Vol.42Issue(3)：275-282,8.DOI:10.19591/j.cnki.cn11-1974/tf.2022070015
粉末锻造Al2O3颗粒增强Fe-Ni-Mo-C-Cu复合材料的组织与性能
Microstructure and properties of alumina ceramic particle reinforced Fe-Ni-Mo-C-Cu composites prepared by powder forging
张旭 1史思阳 1张腾雨 1田谨 1吴亚科 1王邃 1赵振智 2江峰1
作者信息
- 1. 西安交通大学金属材料强度国家重点实验室,西安 710049
- 2. 西北工业集团有限公司计量理化二中心,西安 710043
- 折叠
摘要
Abstract
The Fe-Ni-Mo-C-Cu(Q61)composites reinforced by Al2O3 particles with different contents were prepared by powder forging.The microstructure and properties of the tempered and quenched Q61 composites were studied.The results show that,when the mass fraction of Al2O3 is 0.15％,the Al2O3 particles are distributed homogeneously in the matrix.Compared with the single Q61 without reinforced particles under the same state,the hardness and yield strength of the tempered composites are increased from HRC 38 and 1106 MPa to HRC 39.8 and 1121 MPa,respectively,while the elongation is decreased from 12％to 6.5％;the hardness of the quenched Q61 composites is enhanced from HRC 61.5 to HRC 63.2,and the wear rate is reduced from 5.27×10-6 mm3·m-1·N-1to 3.08×10-6 mm3·m-1·N-1,lower than that of the typical 40Cr gear materials(3.34×10-6 mm3·m-1·N-1).However,the Al2O3 particles are aggregated gradually when the Al2O3 addition content is more than 0.15％.Though the yield strength is still improved,the plasticity is reduced significantly for the tempered composites,and the wear rate is greatly increased for the quenched composites,showing the degraded wear resistance.In summary,the Q61 composites with 0.15％Al2O3 particles show the higher comprehensive mechanical properties in the tempered state and the good wear resistance in the quenched states,respectively.关键词
粉末锻造/Fe-Ni-Mo-C-Cu复合材料/微观组织/力学性能/摩擦/磨损Key words
powder forging/Fe-Ni-Mo-C-Cu composites/microstructure/mechanical properties/friction/wear分类
矿业与冶金引用本文复制引用
张旭,史思阳,张腾雨,田谨,吴亚科,王邃,赵振智,江峰..粉末锻造Al2O3颗粒增强Fe-Ni-Mo-C-Cu复合材料的组织与性能[J].粉末冶金技术,2024,42(3):275-282,8.
