论文摘要
Two austenitic Mn steels（Fe-17 Mn and Fe-17 Mn-3 Al（wt%, so as the follows）） were subjected to thermomechanical processing（TMP） consisting of forging followed by solutionization and hot rolling. The rolled samples were annealed at 650 and 800°C to relieve the internal stress and to induce recrystallization. The application of TMP and heat treatment to the Fe-17 Mn/Fe-17 Mn-3 Al steels refined the austenite grain size from 169 μm in the as-solutionized state to 9–13 μm, resulting in a substantial increase in hardness from HV 213 to HV 410 for the Fe-17 Mn steel and from HV 210 to HV 387 for the Fe-17 Mn-3 Al steel. The elastic modulus values, as evaluated by the nanoindentation technique, increased from（175 ± 11） to（220 ± 12） GPa and from（163 ± 15） to（205 ± 13） GPa for the Fe-17 Mn and Fe-17 Mn-3 Al steels, respectively. The impact energy of the thermomechanically processed austenitic Mn steels was lower than that of the steels in their as-solutionized state. The addition of Al to the Fe-17 Mn steel decreased the hardness and elastic modulus but increased the impact energy.
论文目录
文章来源
类型: 期刊论文
作者: Renuprava Dalai,Siddhartha Das,Karabi Das
来源: International Journal of Minerals Metallurgy and Materials 2019年01期
年度: 2019
分类: 工程科技Ⅱ辑,工程科技Ⅰ辑
专业: 金属学及金属工艺,机械工业
单位: Department of Metallurgical and Materials Engineering, Indian Institute of Technology
分类号: TG142.1
页码: 64-75
总页数: 12
文件大小: 894K
下载量: 24
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