中国激光, 2003, 30 (5): 471, 网络出版: 2006-06-27
激光诱导自蔓延反应合成非晶 复合材料组织与性能
Microstructure and Properties of Amorphous-based Composite Fabricated by Laser-induced Self-propagating Reaction Synthesis
非晶材料 激光诱导自蔓延反应 放热反应 大块非晶合金 复合材料 Zr基合金 noncrystal materials laser induced self-propagating reaction exothermic reaction bulk amorphous alloy composite material Zr-based alloys
摘要
利用构成Zr基大块非晶合金体系的主要组元之间具有很大的负混合焓而能发生很强放热反应的特点,设计了激光诱导自蔓延反应合成大块非晶合金的工艺。针对Zr Al Ni Cu合金体系的初步研究表明,合成产物主要是由非晶,Zr3Al2及Zr2Cu型金属间化合物所构成。随着掺杂(Zr,C)含量的增加,合成产物中非晶比例降低,而硬度及耐磨性增加。
Abstract
Noticing that strong exothermic reaction due to large negative enthalpy of mixing can occur among major components of bulk metallic glass forming alloy systems, a new technique to fabricate an amorphous based composite material using laser induced self propagating reaction synthesis (LSRS) is developed. The LSRS for Zr Al Ni Cu alloy system shows that the products mainly consist of amorphous, Zr 3Al 2 and Zr 2Cu phases. With increasing of impure (Zr,C) in raw powder mixtures, the amount of amorphous phase in products decreases, while microhardness and wear resistance of products increase.
王存山, 夏元良, 李刚, 高林辉, 王彦芳, 董闯. 激光诱导自蔓延反应合成非晶 复合材料组织与性能[J]. 中国激光, 2003, 30(5): 471. 王存山, 夏元良, 李刚, 高林辉, 王彦芳, 董闯. Microstructure and Properties of Amorphous-based Composite Fabricated by Laser-induced Self-propagating Reaction Synthesis[J]. Chinese Journal of Lasers, 2003, 30(5): 471.