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期刊论文

Characteristics of residual stress in Mo-Ti functionally graded material with a continuous change of composition

杨中民Z.M. Yang ab* Z.G. Zhou a L.M. Zhang a

Materials and Engineering A358(2003)214-218,-0001,():

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摘要/描述

With the addition of the sintering additives Ni and Cu, highly dense Mo-Ti alloys with various Mo:Ti ratios were obtained byhot-pressing method. Under the same conditions a Mo-Ti green body with continuously graded com position, formed by the particle settling method, was sintered. The longitudinal and transverse ultrasonic velocities of Mo-Ti alloys were tested in order to calculate the residual stresses that develop during cooling of the Mo-Ti functionally graded material (FGM). By using an axisymmetric finite element method, the fabricated thermal stress in a disk-shaped Mo-Ti FGM was calculated. The results show that the residual stress continuously changes with the smooth change of graded composition and the maximum value of residual tensile stress is far lower than that of the bending strength of Mo-Ti alloys.

【免责声明】以下全部内容由[杨中民]上传于[2005年07月11日 23时28分42秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。

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