Mechanical Behaviour of 304 Austenitic Stainless Steel Processed by Room Temperature Rolling

International Conference on Recent Advances in Materials, Mechanical and Civil Engineering

材料科学;机械制造;土木建筑工程

Singh, Rahul^1 ; Goel, Sunkulp^2 ; Verma, Raviraj^3 ; Jayaganthan, R.^4 ; Kumar, Abhishek^1

Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Allahabad

211004, India^1

Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Nanjing

210094, China^2

Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee

247667, India^3

Department of Engineering Design, Indian Institute of Technology Madras, Chennai

600036, India^4

关键词: 304 austenitic stainless steels;    Combined effect;    Hardness values;    Martensitic phase;    Martensitic phase transformations;    Mechanical behaviour;    Micro-structural;    Ultimate tensile strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/330/1/012017/pdf
DOI  :  10.1088/1757-899X/330/1/012017

来源: IOP

【 摘 要 】

To study the effect of room temperature rolling on mechanical properties of 304 Austenitic Stainless Steel, the as received 304 ASS was rolled at room temperature for different percentage of plastic deformation (i.e. 30, 50, 70 and 90 %). Microstructural study, tensile and hardness tests were performed in accordance with ASTM standards to study the effect of rolling. The ultimate tensile strength (UTS) and hardness of a rolled specimen have enhanced with rolling. The UTS has increased from 693 MPa (as received) to 1700 MPa (after 90% deformation). The improvement in UTS of processed samples is due to combined effect of grain refinement and stress induced martensitic phase transformation. The hardness values also increases from 206 VHN (as received) to 499 VHN (after 90% deformation). Magnetic measurements were also conducted to confirm the formation of martensitic phase.