Tailoring Microstructure and Tribological Properties of Cold Deformed TiZrAlV Alloy by Thermal Treatment

Tailoring Microstructure and Tribological Properties of Cold Deformed TiZrAlV Alloy by Thermal Treatment
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热处理调整冷变形 TiZrAlV 合金的显微组织和摩擦学性能

DOI:
10.1007/s40195-017-0558-7
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发表时间:
2017-03
期刊:
Acta Metall. Sin. (Engl. Lett.)
影响因子:
--
通讯作者:
Xiang-Yi Zhang
Xiang-Yi Zhang
中科院分区:
其他
文献类型:
--
作者:
Guo-Sheng Zhang;De-Feng Guo;Ming Li;Jing-Tao Li;Qian Zhang;Xiao-Hong Li;Xiang-Yi Zhang

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本文研究了一种新型TiZrAlV合金的组织演变和摩擦学性能。成功制备了等轴晶组织、双相片层组织和非均相片层组织等多种组织,并通过冷剧烈塑性变形结合后续的再结晶退火和时效处理,探讨了这些组织对摩擦学性能的影响。与等轴晶状组织和双相片状组织合金相比,该合金具有较高的抗拉强度(~1545 MPa)、合理的延展性(~7.9%)和优异的耐磨性。本研究为提高非均相片层结构合金的摩擦学性能提供了一条新的途径。
Microstructure evolution and tribological properties of a new TiZrAlV alloy have been investigated in the present study. Various microstructures, i.e., equiaxed grain structure, dual-phase lamella structure, and heterogeneous lamellar structure, have been successfully prepared, and the effect of the microstructure on tribological properties was explored by means of cold severe plastic deformation combined with subsequent recrystallization annealing and aging treatments. The special heterogeneous lamellar-structured alloy exhibits a high ultimate tensile strength (~1545 MPa), reasonable ductility (~7.9%), and excellent wear resistance as compared with the equiaxed grain-structured and dual-phase lamella-structured alloy. The present study demonstrates an alternative route for enhancing the tribological properties of alloys with heterogeneous lamellar structure.
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