Influence of intensive melt shearing on subsequent hot rolling and the mechanical properties of twin roll cast AZ31 strips
Influence of intensive melt shearing on subsequent hot rolling and the mechanical properties of twin roll cast AZ31 strips
复制标题
DOI：
10.1016/j.matlet.2015.01.017
复制
发表时间：
2015-04
影响因子：
3
通讯作者：
S. Das;N. Barekar;O. Fakir;X. Yang;J. Dear;Z. Fan
中科院分区：
文献类型：
--
作者：
S. Das;N. Barekar;O. Fakir;X. Yang;J. Dear;Z. Fan
在本研究中，带材生产的熔体调节双辊铸轧（MC-TRC）工艺。将带材在400 ℃下均质化1小时，然后进行热轧（400 ℃）工艺。通过单道次和两道次的大变形，使带材变形量达到40%。对TRC、MC-TRC和热轧MC-TRC样品进行了高温（200 ℃）下的拉伸试验。与其它试样相比，单道次热轧MC-TRC试样显示出优异的拉伸强度和延展性。详细的显微组织研究表明，细晶粒组织可以通过在热轧过程中给予最大的变形和更细的晶粒尺寸更好的是在温成形温度下的拉伸性能。
In the present investigation, strips were produced by melt conditioned twin roll casting (MC-TRC) process. The strips were homogenized at 400C for one hour followed by hot rolling (400C) process. Severe deformation was applied to deform the strip up to 40% by single and two passes. Tensile tests at elevated temperature (200C) were conducted on TRC, MC-TRC, and hot rolled MC-TRC samples. Single pass hot rolled MC-TRC sample showed excellent tensile strength and ductility compared to the other samples. Detail microstructural studies revealed that fine grain structure can be obtained by giving maximum deformation during the hot rolling process and finer the grain size better is the tensile properties at warm forming temperature.