O.Rezzik
Materials
- Sep 27, 2024
- 2
Hello,
I'm currently preparing my PhD in material science.
I am yet to make a mold for making the material to be studied, and I want to make it as small as possible while being able to produce standardized test pieces for tensile strength test, the process will be centrifugal casting, and the end product will be a relatively thine cylinder(5mm-30mm thickness).
Since the FGM studied will be mostly metal with small gradient of ceramic from the outside in, I thought that Standards such as ISO 6892-1 and ASTM E8-E8M can be used to dimension the test pieces, correct me if I am wrong, specially since I didn't find any standards regarding metal-ceramic FGM testing.
Making the mold too long will require too much material per test and might make the mold unstable with the available equipment, which will lead to irregularities in the end product, so even following the SO 6892-1 and ASTM E8-E8M might not be possible since the shortest test specimen is about 240mm in both of them, which leads to my second and third questions, will a relatively short test specimen (about 150 mm) give me reliable results? and how to design a non standardized test piece(gauge length,width,...etc)?
I'm currently preparing my PhD in material science.
I am yet to make a mold for making the material to be studied, and I want to make it as small as possible while being able to produce standardized test pieces for tensile strength test, the process will be centrifugal casting, and the end product will be a relatively thine cylinder(5mm-30mm thickness).
Since the FGM studied will be mostly metal with small gradient of ceramic from the outside in, I thought that Standards such as ISO 6892-1 and ASTM E8-E8M can be used to dimension the test pieces, correct me if I am wrong, specially since I didn't find any standards regarding metal-ceramic FGM testing.
Making the mold too long will require too much material per test and might make the mold unstable with the available equipment, which will lead to irregularities in the end product, so even following the SO 6892-1 and ASTM E8-E8M might not be possible since the shortest test specimen is about 240mm in both of them, which leads to my second and third questions, will a relatively short test specimen (about 150 mm) give me reliable results? and how to design a non standardized test piece(gauge length,width,...etc)?