Effect of Different Heat Treatment Processes on Microstructure Evolution and Tensile Properties of Hot-Rolled Medium-Mn Steel

2020 ◽  
Vol 73 (9) ◽  
pp. 2221-2229
Author(s):  
Chunquan Liu ◽  
Qichun Peng ◽  
Zhengliang Xue ◽  
Jianli Li ◽  
Chengwei Yang
Keyword(s):  
Heat Treatment ◽  
Tensile Properties ◽  
Microstructure Evolution ◽  
Treatment Processes ◽  
Medium Mn Steel ◽  
Hot Rolled ◽  
Mn Steel

Effects of rolling and heat treatment on hydrogen embrittlement in medium-Mn steel

2021 ◽  
pp. 130784
Author(s):  
Juanping Xu ◽  
Zheng Wang ◽  
Hao Fu ◽  
Jinxu Li ◽  
Ming Wu
Keyword(s):  
Heat Treatment ◽  
Hydrogen Embrittlement ◽  
Medium Mn Steel ◽  
Mn Steel

Study on the Heat-Treatment of Clad Plate for Cutting Tools

2013 ◽  
Vol 401-403 ◽  
pp. 916-919
Author(s):  
Lin Lin Yuan ◽  
Jing Tao Han ◽  
Jing Liu
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Cutting Tools ◽  
High Hardness ◽  
Core Layer ◽  
Water Cooling ◽  
Treatment Processes ◽  
Uniform Microstructure ◽  
Hot Rolled ◽  
Cutting Tool Materials

High sharpness, abrasion resistance, superior ductility, and processability are required in cutting tool materials application. Used 304(0Cr18Ni9) austenitic stainless steel as cladding and 440(7Cr17) martensitic stainless steel as core layer to produce excellently combined stainless steel plate by hot-rolled bonding in this investigation as well as researched various heat treatment processes. The results indicated that the core layer has high hardness and the cladding layer has tiny and uniform microstructure by the method of heating at 10501070°C for 15 minutes, water-cooling , then tempering at 200°C.

The Simultaneous Effect of Extrusion Ratio and Solution Heat Treatment on the Microstructure and Tensile Properties of Extruded Al-15%Mg2Si- 1.0%Gd Composite

2020 ◽  
Vol 1010 ◽  
pp. 166-171
Author(s):  
Hamidreza Ghandvar ◽  
Wan Famin Faiz ◽  
Tuty Asma Abu Bakar ◽  
Mohd Hasbullah Idris
Keyword(s):  
Heat Treatment ◽  
Ductile Fracture ◽  
Tensile Properties ◽  
Solution Heat Treatment ◽  
Extrusion Ratio ◽  
Treatment Processes ◽  
Heat Treated ◽  
Size And Morphology ◽  
Surface Examination ◽  
Strength And Ductility

The effect of extrusion ratios and solution heat treatment on microstructure and tensile properties of extruded Al-15%Mg2Si-1.0%Gd composite was investigated. The as-cast composite was hot extruded using three different dies and solution heat treated. After conducting heat treatment on extruded samples, microstructure alteration was examined using scanning electron microscope (SEM). Furthermore, mechanical properties of the composites were studied with tensile test. The results demonstrated that extruded and heat treated composite possesses higher strength and ductility compared to as-extruded composites. It was also found that the extrusion and heat treatment processes altered the morphology of primary Mg2Si particles as well as reduction in their size especially when the extrusion ratio increases. Fracture surface examination revealed a transition from ductile fracture in as-extruded samples to more ductile fracture in extruded and heat treated ones. This can be attributed to the change in size and morphology of primary Mg2Si particles as well as fragmentation of Gd intermetallic compounds.

scholarly journals Influence of Microstructural Morphology on Hydrogen Embrittlement in a Medium-Mn Steel Fe-12Mn-3Al-0.05C

Metals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 929 ◽  
Author(s):  
Xiao Shen ◽  
Wenwen Song ◽  
Simon Sevsek ◽  
Yan Ma ◽  
Claas Hüter ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
The Other ◽  
Duplex Microstructure ◽  
Ultrafine Grained ◽  
Medium Mn Steel ◽  
Microstructural Morphology ◽  
Cold Rolled ◽  
Mixed Microstructure ◽  
Mn Steel

The ultrafine-grained (UFG) duplex microstructure of medium-Mn steel consists of a considerable amount of austenite and ferrite/martensite, achieving an extraordinary balance of mechanical properties and alloying cost. In the present work, two heat treatment routes were performed on a cold-rolled medium-Mn steel Fe-12Mn-3Al-0.05C (wt.%) to achieve comparable mechanical properties with different microstructural morphologies. One heat treatment was merely austenite-reverted-transformation (ART) annealing and the other one was a successive combination of austenitization (AUS) and ART annealing. The distinct responses to hydrogen ingression were characterized and discussed. The UFG martensite colonies produced by the AUS + ART process were found to be detrimental to ductility regardless of the amount of hydrogen, which is likely attributed to the reduced lattice bonding strength according to the H-enhanced decohesion (HEDE) mechanism. With an increase in the hydrogen amount, the mixed microstructure (granular + lamellar) in the ART specimen revealed a clear embrittlement transition with the possible contribution of HEDE and H-enhanced localized plasticity (HELP) mechanisms.

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