表面技术2017，Vol.46Issue(11)：248-253,6.DOI:10.16490/j.cnki.issn.1001-3660.2017.11.034
机械合金化制备Ti(Al,C)复合粉末组织结构研究
Microstructure of Ti(Al,C) Composite Powder Prepared by Mechanical Alloying
摘要
Abstract
The work aims to prepare Ti(Al,C) composite powder in in-situ synthesis method. Ti(Al,C) composite powder was fabricated in mechanical alloying method for different ball milling time. Mole ratio of Ti/Al was 1:1. In order to study the effects of different ball milling time on phase evolution, microstructure and inter-particle interface bonding state of the compo-site power as-prepared, microstructure and phase of ball milled Ti(Al,C) composite powder were analyzed with scanning elec-tron microscopy (SEM) and X-ray diffractometer (XRD), respectively. During the process of ball milling, grain size of the powder decreased as the milling time prolonged, and ductile Al powder particle flattened and its surface area enlarged as the ball milling time increased to a certain extent, and fractured Ti particles were continuously inserted into Al particles to constitute Ti(Al) solid solution. Al peak in the Ti(Al,C) composite powder gradually decreased, indicating that Al element continuously diffused into Ti to form certain amount of Ti(Al) solid solution. Ti(Al) solid solution can be successfully in-situ synthesized for certain period of time in ball milling method, it shows that interdiffusion between Ni and Al facilitates formation of Ti(Al) solid solution.关键词
机械合金化/Ti(Al,C)/复合粉末/组织结构/固溶体/SEMKey words
mechanical alloying/Ti(Al/C)/composite particle/microstructure/solid solution/SEM分类
矿业与冶金引用本文复制引用
陈枭..机械合金化制备Ti(Al,C)复合粉末组织结构研究[J].表面技术,2017,46(11):248-253,6.基金项目
九江市科技计划项目([2015]64号) Supported by the Science and Technology Project of Jiujiang City (No. [2015]64) （[2015]64号）
