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Last updated on April 25, 2014 at 1:22 EDT

Latest Austenite Stories

How Were The Unique Patterns Formed On The Ancient Damascus Blades?
2014-03-12 10:08:49

Science China Press Blacksmiths and metallurgists in the West have been puzzled for centuries as to how the unique patterns on the famous Damascus steel blades were formed. Different mechanisms for the formation of the patterns and many methods for making the swords have been suggested and attempted, but none has produced blades with patterns matching those of the Damascus swords in the museums. The debate over the mechanism of formation of the Damascus patterns is still ongoing today....

2013-09-09 23:25:21

New Hot Isostatic Presses feature exclusive Uniform Rapid Quenching (URQ) technology Vasteras, Sweden (PRWEB) September 09, 2013 Avure Technologies has described its Hot Isostatic Presses equipped with its new HIP quenching furnace as "the ultimate heat treatment machine." The exclusive Uniform Rapid Quenching (URQ) technology evolves from the rapid cooling furnaces developed earlier by Avure, with new patented designs enabling a variety of programmed heat treatment (quenching)...

2012-11-06 03:25:35

There has been great advancements in the development of the high-strength steel and the need for additional enhancements continue to grow. Various industries have a need for structural components that are lighter and stronger, improve energy efficiencies, reduce emissions and pollution increase safety and cost less to produce, particularly in the automotive industry. A group of researchers in Wayne State University´s College of Engineering have been working to create advanced...

2008-10-02 03:00:33

By Soliman, Mohamed Palkowski, Heinz Two Mo-Nb microalloyed transformation-induced-plasticity (TRIP) steels, with Al contents of 0.23 and 0.65, were subjected to several hot-rolling conditions designed to generate different ferrite morphologies and grain sizes. These structures were then cold rolled and TRIP annealed under different heat-treatment conditions. To further develop TRIP steel in terms of strength and ductility, stabilizing retained austenite by isothermal bainitic...

2008-07-26 03:00:29

By Mintz, B Gunawardana, W D; Su, H Aluminium in solution in the ferrite in ferrite/pearlite steels has been found to have little influence on strength of the ferrite probably because up-till recently it has been added in very small amounts (0.02-0.08 wt-%Al) as a grain refining addition. There is indeed some doubt in the literature as to whether Al can solid solution harden. This lack of knowledge has not been important while Al additions are small but recently Al has been added in much...

2008-07-26 03:00:29

By Mintz, B Gunawardana, W D; Su, H The influence of Al on the strength and impact properties of hot rolled plain C-Mn low S steels has been examined at two C levels, 0.02 and 0.1% and two N levels, 0.001 and 0.004-0.005% (where percentage is to be taken as wt-%). It has been found that Al is an excellent element to add to hot rolled steels, an addition of 0.2% to a plain 0.1C-1.4Mn steel with 0.004-0.005%N resulting in an impact transition temperature of -95[degrees]C at a strength level...

2008-07-24 03:00:47

By Abe, Hiroshi Watanabe, Yutaka Thermal aging embrittlement of light water reactor (LWR) components made of stainless steel cast has been recognized as a potential degradation issue, and careful attention has been paid to it. Although welds of austenitic stainless steels have gamma-delta duplex micro structure, which is similar to that of the stainless steel cast, examination of the thermal aging characteristics of the stainless steel welds is very limited. In this investigation, two types...

2008-07-18 03:00:39

By Tartaglia, John M Lazzari, Kristen A; Hui, Grace P; Hayrynen, Kathy L This study was conducted to compare the hydrogen embrittlement (HE) resistance of austempered 4340 steel with quenched and tempered (Q&T) 4340 steel with an identical yield strength (YS) of 1340 MPa (194 ksi). A baseline comparison showed that the austempered steel with a lower bainite microstructure exhibited higher hardness, tensile strengths, Charpy V-notch (CVN) impact toughness, and ductility at both low 233 K...

2008-07-18 03:00:39

By Luzginova, N V Zhao, L; Sietsma, J The cementite spheroidization process is investigated in hypereutectoid steels with different chromium (Cr) contents. A spheroidized structure in high-carbon steel is usually obtained by a divorced eutectoid transformation (DET) reaction, which occurs during slow cooling of austenite with fine cementite particles. A bimodal distribution of spheroidized cementite particles is experimentally observed. It is shown that Cr addition allows one to obtain the...

2008-02-29 03:00:30

By Trabadelo, V Iturriza, I The microstructure of powder metallurgy T42 high speed steel has been analysed after isothermal annealing. The heat treatment parameters (austenitising temperature, annealing time and annealing temperature) have been chosen aiming at obtaining a moderate hardness (50 HRC) adequate for structural applications. It has been demonstrated that it is possible to attain the targeted hardness through a globular pearlitic matrix microstructure at temperatures markedly...