This inventor holds 2 USPTO granted patents and 3 published patent applications, plus 2 CIPO patents and 2 EPO patents. Top assignee: Arcelormittal. Active years: 2019-2022.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Munster, IN (US) (2019)
- Chicago, IL (US) (2022)
Company Filing History:
Years Active: 2019-2022
Title: Rongjie Song: Innovator in Martensitic Steel Alloys
Introduction
Rongjie Song is a prominent inventor based in Chicago, IL, known for his contributions to the field of materials science, particularly in the development of advanced martensitic steel alloys. With a total of 2 patents, his work focuses on enhancing the mechanical properties of steel, making it suitable for various industrial applications.
Latest Patents
Rongjie Song's latest patents include innovative formulations of martensitic steels. One patent describes a martensitic steel alloy that boasts a tensile strength ranging from 1700 to 2200 MPa. This alloy comprises carbon from 0.22 to 0.36 wt. %, manganese from 0.5% to 2.0% wt. %, and chromium in an amount less than 0.10 wt. %. The carbon equivalent is defined as less than 0.44, calculated using the formula C=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15. The alloy is engineered to achieve an ultimate tensile strength of at least 1700 MPa.
Another significant patent focuses on a martensitic steel with delayed fracture resistance and its manufacturing method. This cold rolled and annealed martensitic steel sheet includes specific weight percentages of various elements, ensuring a microstructure that is 100% martensitic. The steel sheet demonstrates a delayed fracture resistance of at least 24 hours during an acid immersion U-bend test, showcasing its durability and reliability in challenging environments.
Career Highlights
Rongjie Song is currently employed at ArcelorMittal, a leading global steel and mining company. His work at ArcelorMittal has positioned him as a key player in the development of high-performance steel products. His innovative approaches to alloy design have contributed significantly to advancements in the field.
Collaborations
Rongjie collaborates with esteemed colleagues, including Narayan Subramaniam Pottore and Nina Michailovna Fonstein. Their combined expertise fosters a dynamic research environment that drives innovation in materials science.
Conclusion
Rongjie Song's contributions to the field of martensitic steel alloys exemplify the importance of innovation in materials engineering. His patents reflect a commitment to enhancing the performance and safety of steel products, making a lasting impact on
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile