Role of powder metallurgical processing and TiB reinforcement on mechanical response of Ti-TiB composites

被引：40
作者：
Selvakumar, M. [1 ]
Chandrasekar, P. [2 ]
Mohanraj, M. [3 ]
Ravisankar, B. [4 ]
Balaraju, J. N. [5 ]
机构：
[1] Dr Mahalingam Coll Engn & Technol, Dept Mech Engn, Pollachi 642003, India
[2] Prof Educ Trusts Grp Inst, Sch Engn, Coimbatore 641662, Tamil Nadu, India
[3] Hindusthan Coll Engn & Technol, Dept Mech Engn, Coimbatore 641032, Tamil Nadu, India
[4] Natl Inst Technol, Dept Met & Mat Engn, Tiruchirappalli 620015, India
[5] Natl Aerosp Labs, Surface Engn Div, Bangalore 560017, Karnataka, India
来源：
MATERIALS LETTERS | 2015年 / 144卷
关键词：
Composite materials; Sintering; Powder technology; IN-SITU PREPARATION; ELASTIC-MODULUS; MICROSTRUCTURE; HARDNESS;
D O I：
10.1016/j.matlet.2014.12.126
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, titanium-titanium boride (Ti-TiB) composites were synthesized by three different powder metallurgical techniques, namely, spark plasma sintering (SPS), hot iso-static pressing (HIP) and vacuum sintering (VS). The mechanical properties of the composites were determined using the nanoindentation technique. The role of the material processing route and TiB reinforcement employed on the mechanical properties of the composites was investigated. The results revealed that the composites processed by SPS possessed improved mechanical properties relative to those of the composites prepared by the HIP and VS techniques. Furthermore, reinforcement of the composites with TiB enhanced the hardness, elastic modulus and contact stiffness, whereas it reduced the fracture toughness and indentation creep. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：58 / 61
页数：4
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