首页|期刊导航|哈尔滨工业大学学报（英文版）|Hot compressive deformation behavior of an in-situ TiB whisker reinforced Ti matrix composite
哈尔滨工业大学学报（英文版）2004，Vol.11Issue(3)：245-249,5.
Hot compressive deformation behavior of an in-situ TiB whisker reinforced Ti matrix composite
Hot compressive deformation behavior of an in-situ TiB whisker reinforced Ti matrix composite
摘要
Abstract
An in-situ TiB whisker reinforced Ti matrix (TiBw/Ti) composite is fabricated by powder metallurgy technique followed by hot extrusion. Hot compressive deformation behavior of the composite, in which the TiB whiskers were oriented along the extruded direction, is investigated. The results indicate that the hot compressive resistance of the TiBw/Ti composite is higher than that of the unreinforced Ti, and hot compressive resistance of the composite in the direction parallel to the whisker orientation is higher than that in the direction perpendicular to the whisker orientation. The hot compressive resistance of the composite increases with increasing strain rate and decreasing temperature. With increasing test temperature, the rate of the decrement of the compressive flow stress of the composite is higher than that of the unreinforced Ti. With increasing amount of compressive deformation, more and more TiB whiskers rotate and break during deformation. The rotation of the whiskers is easier at higher temperature, while, at lower temperature it becomes more difficult and whisker breakage becomes much more serious.关键词
metals/composite materials/powder metallurgy/thermal propertiesKey words
metals/composite materials/powder metallurgy/thermal properties分类
通用工业技术引用本文复制引用
张杰,郭永良..Hot compressive deformation behavior of an in-situ TiB whisker reinforced Ti matrix composite[J].哈尔滨工业大学学报（英文版）,2004,11(3):245-249,5.基金项目
Sponsored by the Youth Foundation of Harbin(Grant No. 0081218003 ). （Grant No. 0081218003 ）
