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Grain Size Dependence of Austenite Decomposition in Air-Cooled 16MnCr5 Steel |
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| Authors: | Seok-Jae Lee Chester J Van Tyne |
| Affiliation: | 1. Division of Advanced Materials Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea 2. Advanced Steel Processing and Products Research Center, Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO, 80401, USA |
| Abstract: | A hot-rolled and controlled rolled 16MnCr5 steel was analyzed after similar industrial cooling conditions. The hot rolled steel had a ferrite–bainite microstructure whereas the controlled rolled steel had a ferrite–pearlite microstructure. The prior austenite grain size was found to be the controlling factor based on a cooling analysis. The effect of prior austenite grain size on the bainite start temperature had to be considered in the transformation model. |
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