Abstract
The microstructure and mechanical properties of a 15%Cr super martensitic stainless steel microalloyed with tungsten were investigated by means of dilatometer,optical microscopy,transmission electron microscopy(TEM),high-resolution transmission electron microscopy(HRTEM),energy dispersive spectrometer(EDS),and tensile and hardness tests.The results revealed that a typical biphase structure of tempered martensite and reversed austenite which diffusional distributed in martensite matrix was selected after quenching and tempering.The reversed austenite and martensite matrix meet the K-S relationship.The diffraction pattern calculations and the EDS analysis of TEM confirmed that the nanometer-sized Laves particles and rich copper phase e-Cu precipitated in the matrix during tempering in the investigated steel,which were contributive to improve strength.The steel microalloyed with W showed an improved mechanical property values: 26~36 RC hardness,895~1 009 MPa tensile strength,17%~21% elongation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: JOURNAL OF SHENZHEN UNIVERSITY SCIENCE AND ENGINEERING
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
