Effect of Quenching Microstructure on the Formation of Reversed Austenite in 9Ni Steel
Year: 2014
Type: article
Abstract: The microstructures of 9Ni steel by quenching at different temperatures were observed, and the effect of grain size on the formation of reversed austenite was investigated by XRD, SEM and EBSD. It was found that the reversed austenite formed easily because of the refined initial microstructure which could provide more nucleation sites. More austenite phase precipitates during tempering and stabilization because the alloying atoms can segregate into austenite easily through a short-range diffusion. Austenitizing at 750°C to 850°C for 60min coiuld causes slight coarsening of microstructure and refining of martensite packets with average size of about 5μm. Obvious coarsening occurs when austenitizing temperature is over 850°C.
Source: Materials science forum
Authors: Yue Hui Yang, Xiao Juan Zhang, Shao Qiang Yuan, Jing Li
Institution: Tangshan College
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W1973191966