should we perform all these test of each layer of functional graded material lets suppose Ti with ZIRCONIUM in different proportions, separately and then after graduation again as a whole....?
ASTM standard for MMC which I know is only for tensile test: ASTM D3552 - 12 "Standard Test Method for Tensile Properties of Fiber Reinforced Metal Matrix Composites"
ASTM indicate this book Metal Matrix Composites: Testing, Analysis, and Failure Modes, but I never read it.