In industries, components must operate under extreme conditions such as high load, speed, temperature and chemical environment. Materials are selected according to commercial availability, cost their properties strength, hardness, etc. AISI 904L is a high-alloy stainless steel with low carbon content, poor surface hardness wear characteristics. Many engineering failures caused by fatigue, corro...

Powder metallurgy (P/M) technique is usually used for manufacturing porous metal materials. However, some P/M materials are limitedly used in engineering for their performance deficiency. A novel 304 stainless steel P/M material was produced by a solid-state sintering of 304 stainless steel powders and 304 short stainless steel fibers, which were alternately laid in layers according to mass rat...

Titanium alloy Ti6Al4V possesses a range of highly interesting properties such as excellent corrosion resistance, bio-compatibility and high specific stress but suffers from poor wear resistance. The present work addresses plasma assisted surface treatment using various combinations nitriding oxidizing treatments for improving the this alloy. response to is investigated by hardness depth profil...

Due to their lightness and good mechanical properties various Al-alloy products obtained by casting, rolling and hot extrusion are still gaining in importance. Hot extrusion of Al-alloys (Figure 1.a) enables the production of a very varied range of profi le shapes, which, due to the above mentioned excellent properties are used mainly in the automotive and electro-industries, in aeronautics, in...