Nano-sized austenite and Cu precipitates formed by using intercritical tempering plus tempering and their effect on the mechanical property in a low carbon Cu …

W Hou, Q Liu, J Gu - Materials Science and Engineering: A, 2020 - Elsevier
High toughness, especially cryogenic toughness, is usually hard to be obtained in
precipitation strengthening steels. In this report, intercritical tempering plus tempering were …

Improved impact toughness by multi-step heat treatment in a 1400 MPa low carbon precipitation-strengthened steel

W Hou, Q Liu, J Gu - Materials Science and Engineering: A, 2020 - Elsevier
Multi-step heat treatment including intercritical treatment plus traditional tempering is
proposed to tailor strength and toughness in a low carbon precipitation-strengthened steel …

Cu Precipitation Behaviors and Microscopic Mechanical Characteristics of a Novel Ultra-Low Carbon Steel

M Sun, Y Xu, T Xu - Materials, 2020 - mdpi.com
We studied the effect of Cu addition on the hardness of ultra-low carbon steels heat treated
with different cooling rates using thermal simulation techniques. The microstructural …

Effect of cyclic intercritical tempering on the microstructure and mechanical properties of a low-carbon Cu-bearing 7Ni steel

W Hou, Q Liu, H Wen, J Gu - Metallurgical and Materials Transactions A, 2020 - Springer
High strength and toughness are usually hard to obtain simultaneously because of the trade-
off. In this research, cyclic intercritical tempering (IT) was applied to a low-carbon Cu-bearing …

Age Hardening Characteristics of an Ultra-Low Carbon Cu Bearing Steel

M Sun, Y Xu - Materials, 2020 - mdpi.com
We studied the influence of aging temperature on microstructure and mechanical properties
in an ultra-low carbon Cu bearing steel in the present study. During the aging process, a …