How does heat treatment affect the microstructure and mechanical properties of carbon steel?
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Heat treatment has a significant effect on the microstructure and mechanical properties of carbon steel. The addition of tungsten (W) reduces tensile strength due to increased alpha (α) phase fraction . Different heat treatment methods, such as direct aging, austenitizing-aging, and solutionizing-austenitizing-aging, can result in different microstructures and mechanical properties in maraging steel. Direct aging leads to the formation of cellular structures within the martensite, while solutionizing erases these structures and facilitates the formation of a conventional packet-block-lath hierarchy . Post-heat treatment at 250°C for 1.0 h can lead to the precipitation of iron-carbon particles in the coarse-grained heat-affected zone (CGHAZ) of EH47 steel, which hinders the movement of sub-grain boundaries and dislocations, increasing yield strength but reducing fracture toughness . Quenching at 1050°C can result in ultrahigh-strength steel with complex multicomponent laths, substructures, dislocations, and nano-precipitates, leading to high strength and elongation . The microstructure after tempering through induction heat treatment can affect the mechanical properties of carbon steel, with tempered martensite structure observed in certain conditions .
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| Papers (4) | Insight |
|---|---|
| The provided paper is about the effect of heat treatment on the microstructure and properties of an improved 40CrNi2Si2MoV steel. It does not provide information about the effect of heat treatment on carbon steel. | |
| The provided paper is about the effects of heat treatment on the microstructure and mechanical properties of a transformation-induced plasticity-aided economical duplex stainless steel. It does not provide information about the effects of heat treatment on carbon steel. | |
| The provided paper is about the effects of heat treatment on the microstructure and mechanical properties of 18 wt% Ni-350 maraging steel, not carbon steel. The paper does not provide information on the effects of heat treatment on carbon steel. | |
| The provided paper specifically focuses on the effect of post-heat treatment on the microstructure and mechanical properties of EH47 steel in the coarse-grained heat-affected zone (CGHAZ). It does not provide information on the general effect of heat treatment on carbon steel. |
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