Graded Structure in SHS Ceramic-Lined Layered Pipes

Abstract:

Aiming at ceramic-lined layered pipes employed under special conditions, layered structure of ceramic-lined pipes is redesigned by adding (TiO2+Al+C+Ni) subsystem with different contents in (CrO3+Al) main system，and the composite pipe with three-layer structure of steel substrate, the intermediate and ceramics is obtained. SEM images and EPMA analyses indicate that the intermediate is made of Cr-Ni-Fe-Al-Ti, in which Ti carbide particles or fine dendrites of Ti enrichment are embedded with graded distribution. Mechanical tests and SEM images show that as (TiO2+Al+C) subsystem and Ni metallic additive is up to 10% and 15% of whole combustion system respectively, compressive strength and compressive shear strength of the pipe simultaneously reach the maximum values.

• Periodical: Materials Science Forum (Volumes 475-479)
• Pages: 1559-1562
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.475-479.1559
• Online since: January 2005
• Authors: Long Zhang, Zhong Min Zhao, Yu Zhong Yang, Bao Hong Han
• Keywords: Ceramic-Lined Layered Pipes, Combustion Synthesis (CS), Graded Structure, Transient Bonding

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