Preparation and Interface Investigation of Fe/Al2O3P Composite Activated by Ni and Ti

被引：39
作者：
Tang, Shuli [1 ]
Gao, Yimin [1 ]
Li, Yefei [1 ]
Zheng, Qiaoling [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, 28 Xianning West Rd, Xian 710049, Shaanxi, Peoples R China
来源：
ADVANCED ENGINEERING MATERIALS | 2016年 / 18卷 / 11期
基金：
中国国家自然科学基金;
关键词：
METAL-MATRIX COMPOSITES; POROUS TI; ALUMINA; INFILTRATION; AL2O3; MICROSTRUCTURE; FABRICATION; BEHAVIOR;
D O I：
10.1002/adem.201600302
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ceramic particles preforms are synthesized by vacuum sintering reaction between Al2O3 particles and active elements Ti and Ni. The surface of preforms sintered by Al2O3 and Ti consists of block-shaped a-Ti and fibrous TiO. As the content of Ti in preforms increases, the compressive strength of preforms rises first and then falls and the porosity decreases gradually. The preforms sintered of Al2O3 and Ni-Ti have much higher compressive strength, because of the compact sintered shell outside Al2O3 and the sintered necks between particles. Then the preforms/high-Cr cast iron composite is fabricated by infiltration casting process. The three-body abrasive wear resistance of composite is over 12 times higher than Cr15, owing to the protection of extruded Al2O3 and tightly bonded composite interface.
引用
收藏
页码：1913 / 1920
页数：8
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