Development of a Modulated-Microstructure Heat Treatable Steel
Abstract
The objective of this research is to design and develop a modulated- microstructure steel consisting of alternating hardened layers and soft layers such that the complex has a tensile strength of 400 ksi (2.8 KN/sq mm and fracture toughness of 150 ksi(in to the 1/2 power) (160 N/sq mm (m to the 1/2 power)). An important step in the fabrication process was to insure that the alloy layers will partially debond when they deformed and hence improve the fracture toughness of the complex. In view of the importance of having the layers to decouple in order to retard crack propagation and thus improve toughness, further study of the interfacial bonding was carried out in the second project year. Guided and encouraged by the relatively high strength and good toughness obtained in the 01/PS2 model system, a high strength system incorporating and improved interface was designed. This report describes the progress in the development of this system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 10, 1975
- Accession Number
- ADA013022
Entities
People
- Daniel Ng
- P. G. Winchell
Organizations
- Purdue University