التفاصيل البيبلوغرافية
| العنوان: |
High Performance Unalloyed Ductile Cast Iron with Multiphase Structure |
| المؤلفون: |
Zhou, Wen Tao, Yang, Chen, Cui, Xi Xi, Liang, Zhong Yang, Wang, Xuan, Northwood, Derek O., Liu, Cheng |
| المصدر: |
Diffusion and Defect Data Part B: Solid State Phenomena; August 2019, Vol. 295 Issue: 1 p43-48, 6p |
| مستخلص: |
An unalloyed ductile cast iron with a multiphase structure is designed by a novel austempering process. The designed austempering treatment consists of initial rapid quenching to 180°C after austenizing at 890°C for 20min, and finally austempering at 220°C for 240min. A multiphase structure comprising lenticular/needle-like prior martensite, fine needle bainitic ferrite and film retained austenite is obtained. The excellent mechanical properties, with a tensile strength of 1530MPa and an elongation of 3.1% can be achieved by controlling the matrix microstructure of 12% prior martensite, 15% retained austenite with 1.64% carbon content, and 73% bainitic ferrite. This is mainly attributed to prior marteniste which can promote refinement of multiphase colonies. |
| قاعدة البيانات: |
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