Effect of Heat Treatment on Microstructure and Mechanical Properties of Titanium Recycled by Severe Plastic Deformation

被引：0

作者：

McDonald, D. T. ^{[1
,2
]}

Davies, A. J. ^{[1
,2
]}

Luo, P. ^{[1
,2
]}

Zhu, S. M. ^{[3
,4
]}

Palanisamy, S. ^{[5
,6
]}

Dargusch, M. S. ^{[5
,6
]}

Xia, K. ^{[1
,2
]}

机构：

[1] Univ Melbourne, Dept Mech Engn, Melbourne, Vic 3010, Australia

[2] Univ Melbourne, Def Mat Technol Ctr, Melbourne, Vic 3010, Australia

[3] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia

[4] Monash Univ, CAST Cooperat Res Ctr, Clayton, Vic 3800, Australia

[5] Univ Queensland, Sch Mech & Min Engn, Brisbane, Qld 4072, Australia

[6] Univ Queensland, Def Mat Technol Ctr, Brisbane, Qld 4072, Australia

来源：

TI-2011: PROCEEDINGS OF THE 12TH WORLD CONFERENCE ON TITANIUM, VOL I | 2012年

关键词：

Titanium; machining chips; recycling severe plastic de formation; ECAP; heat treatment; MACHINED CHIPS; EXTRUSION; DIFFUSION; ALUMINUM;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Commercially pure (CP) Ti and Ti-6Al-4V machining chips, recycled into fully dense bulk material by a solid-state process based on equal channel angular pressing (ECAP), have been heat-treated and their microstructure and mechanical properties investigated. The as-recycled micro-structure consisted of an ultrafine grain structure and a series of oxide layers associated with the boundary of each machining chip. Following heat treatment within the range 700 to 1000 degrees C for between 1 and 20 hours, the grain structure coarsened and the oxide was observed to dissolve into Ti solid solution. The solid-state dissolution of Ti oxide is discussed, and the mechanical properties of the heat-treated material are compared to the as-recycled and conventionally extruded materials.

引用

页码：497 / 501

页数：5

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