Precipitation-Hardening Stainless Steel
Stainless steels are divided into 4 classes based on the microstructure phase constituent:
Ferritic
Martensitic
Austenitic
Precipitation-Hardening Stainless Steel
Structure:
First, you should explain generally about “Precipitation-Hardening Stainless Steel”. What is it or why called precipitation-hardening stainless steel? Why should do it? Or when should do it? What are the properties?
Second, you should explain about the stainless steel with the composition as below. This is type of “Precipitation-Hardening Stainless Steel”. Please just explain about this material with this compositions (it can be up to 17% Cr in chemical composition) and please do not wite about other compositions/materials or general things in this part.
C Si Mn Cr Ni Mo Al
0.03 0.3 0.3 12.0 9.2 1.4 1.6
The information in second part should include about
• strengthening of this type of steel
• Quenching, tempering, aging
• Hardenability and weldability
Precipitation-Hardening Stainless Steel
APA
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