采用粉末冶金法制备出TZM合金烧结坯,并将其轧制成2mm厚板材,在此基础上采用累积复合轧制技术(ARB),完成TZM板四次轧制复合,并对不同道次TZM复合板进行性能测试和组织分析.结果表明:随累积变形量增加,复合板晶粒显著细化、组织分布更加均匀,经过三次累积复合后,材料的抗拉强度和界面结合状态最佳.试样晶粒在轧制过程中被拉长、展宽,晶粒断面直径200～500nm,抗拉强度提高50％,2mm TZM复合板最高抗拉强度可达968MPa;材料断裂特征仍为脆性断裂,伸长率变化不明显,轧制复合板伸长率仅为2.0％.
参考文献
| [1] | LAND ONTG;FURUKAWA M;HORITAZ et al.Using intense plastic straining for high strain rate super elasticity[J].JOM-Journal of the Minerals Metals and Materials Society,1998,50(06):41-53. |
| [2] | NIRANJANI V L;HARI KUAMAR K C;SUBRAMANYA S V .Development of high strength Al-Mg alloy through cold rolling and ageing[J].Mater Sci Eng (A),2009,515(1/2):169-175. |
| [3] | Saito Y.;Tsuji N.;Sakai T.;Utsunomiya H. .Novel ultra-high straining process for bulk materials - Development of the accumulative roll-bonding (ARB) process[J].Acta materialia,1999(2):579-583. |
| [4] | Hyoung Wook Kim;Suk Bong Kang;Nobuhiro Tsuji .Deformation Textures of AA8011 Aluminum Alloy Sheets Severely Deformed by Accumulative Roll Bonding[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2005(11):3151-3163. |
| [5] | 黄光杰,邹彬,黄鑫,陈泽军,刘庆.累积复合轧制法制备层状超细晶材料的研究现状[J].材料导报,2011(09):6-10,27. |
| [6] | T. Mrotzek;A. Hoffmann;U. Martin .Hardening mechanisms and recrystallization behaviour of several molybdenum alloys[J].International Journal of Refractory Metals & Hard Materials,2006(4):298-305. |
| [7] | 肖松涛,周廉,王国栋,杜林秀,王国栋,巨建辉.钨板轧制的轧制力模型研究[J].稀有金属材料与工程,2007(07):1219-1223. |
| [8] | 陈程,尹海清,曲选辉,朱琳.钼变形抗力的研究[J].稀有金属材料与工程,2007(07):1237-1240. |
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