Abrasion resistance of stainless-steel composites reinforced with hard TiB2 particles

Fatigue and fracture of a 316 stainless steel metal matrix composite reinforced with 25% titanium diboride

“…There has been some previous work on steel-based MMCs, though in general they have focussed on the improved wear properties that are available from those systems [1][2][3][4] rather than on fatigue and fracture.…”

Influence of Processing Parameters and Different Content of Tib2 Ceramics on the Properties of Composites Sintered by High Pressure -High Temperature (HP-HT) Method

“…The wear mechanisms were polishing wear and microploughing for the composites containing high volume fraction of the reinforcement, whereas microploughing and grooving were the dominant wear mechanisms for the composites containing low volume fraction of the reinforcing particles. Few studies have reported the use to TiB 2 reinforcement in stainless-steel-matrix [10][11][12][13]. Titanium diboride is also an attractive ceramic material acting as a reinforcing phase in the stainless-steel-matrix composites.…”

“…Its hardness (3400 HV) is greater than that of the more commonly used WC (2000 HV) and is almost as high as that of SiC (3500 HV) [14]. For example, Tjong and Lau [11] investigated composites reinforced with various volume fractions of TiB 2 particles which were fabricated by hot-isostatic pressing. The addition of the hard ceramic particles improve the mechanical strength of 304 stainless steels at the expense of its ductility.…”

In Situ Production of Locally Reinforced Steel-based Composites with TiC Particulates Using High-frequency Induction Process

“…Additionally, steels have higher stiffness, strength, toughness, low cost compared with light metals, and show good mechanical properties (in the annealed condition), weldability, and some grades offer improved corrosion resistance. 1,5) Work by Ramquist has shown that TiC particulates are easily wet by iron at high temperatures, and as time progresses, wetting further improves because of chemical wetting 6) ; further more TiC particulate is a very good reinforcement for iron-or steelbased composites with high hardness and thermal stability. 7) Generally, production routes used to fabricate TiC particulates reinforced iron-or steel-based composites involves powder metallurgy, 1,8) aluminothermic reduction, 9) traditional casting 7) and self-propagating high-temperature synthesis (SHS), 8,10,11) etc.…”

“…12,13) The latter is of great promise in the applications of wear resistance conditions. As matrix materials, iron or steel is more suitable for particulates locally reinforced wear resistance composites, due to their low cost, versatility, adequate mechanical properties, 5) etc. In the present study, the feasibility of synthesis in situ TiC/steel composites utilizing the self-propagating high-temperature synthesis (SHS) route, and the green preforms consisting of Al, ferrotitanium (Ti-Fe) and C powders, ignited by high-frequency induction process was investigated.…”