Article - 20 Sep 2005
Two ã-TiAl alloys, Ti-47 at%Al-2 at%Nb-2 at%Cr(MJ12) and Ti-47 at%Al-2 at%Nb- 2 at%Mn+0.8 at%TiB2 (MJ47), have been modified in a nitrogen-ion plasma. Hardness and wear resistance were evaluated and...
Article - 27 Nov 2004
The wear resistance of titanium surfaces can be increased by subjecting it to ion implantation which forms titanium nitrides in the surface. The process, resultant surface characteristics, advantages...
Article - 17 Aug 2004
The effects of nitrogen and ammonia on titanium alloys is reported. Details are also provided for elevated temperature behaviour.
Article - 12 Jan 2004
Zirconium Nitride (ZrN) is a hard refractory ceramic material. It is used as a hard coating for machine tools such as drill bits. Properties for Zirconium nitride are provided.
Article - 28 Feb 2003
Brazing of ceramics such as cutting tool inserts is a common activity although it is carried out with varying degrees of success. Described herein is the successful technique used by Carbide...
Article - 23 Sep 2002
Single Spark Evaluation provides a fast an economical alternative to conventional metallographic analysis techniques for the determination of chemical composition. The technique is described and how...
Article - 11 Feb 2002
The effects of various media such as alkalis, inorganic salts, organic chemicals, organic acids, oxygen, hydrogen, sulfur dioxide, hydrogen sulfide, nitrogen, ammonia and liquid metals on titanium are...
Article - 21 Jan 2002
Scheele discovered “Tungsten” in 1781; however, it took 150 years more before the efforts of Scheele and his successors led to the use of tungsten carbide in the industry.
Article - 2 Jan 2002
Stainless steels are heat treated for a variety of reasons. Treatments include annealing, hardening and stress relieving. They are used to restore desirable properties e.g. corrosion resistance to...
Article - 29 Nov 2001
Ceramic brazing techniques are used to join ceramics to other materials. Sometimes the use of intermediate layers are required to increase wetting of the materials to enable creation of a suitable...