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The effect of austenitising temperature on prior austenite grain size in a low-alloy steel
Materials Science and Engineering: A, 2008Abstract The effect of varying normalising and hardening temperatures on the prior austenite grain size in a low-alloy Cr–Mo–Ni–V steel has been examined. An initial relative insensitivity of grain size to increasing austenitising temperature was observed followed by a sudden growth of grains at approximately 1000 °C.
S. Maropoulos, S. Karagiannis, N. Ridley
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Simulation of the influence of phosphorus on the prior austenite grain size of high-impurity steels
Acta Materialia, 2006Abstract The effects of phosphorus addition on the phase transformation behavior of low-carbon steels were analyzed using a computational simulation focusing on the micro-segregation behavior of phosphorus during solidification and subsequent cooling processes. Based on the results of the simulation, a fully theoretical approach to modeling austenite
Y. Kobayashi, H. S. Kim, K. Nagai
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Effects of the prior austenite grain size on the ductility of fully pearlitic eutectoid steel
Metallurgical Transactions A, 1986The role of large prior austenite grain sizes in promoting low ductility of fully pearlitic eutectoid steels has been investigated. Independent variation of the pearlite interlamellar spacing,S p, and the prior austenite grain size enabled determination of the microstructural feature controlling ductility in these steels.
John J. Lewandowski, Anthony W. Thompson
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Effect of Prior Austenite Grain Size on Impact Toughness of Press Hardened Steel
SAE International Journal of Materials and Manufacturing, 2016<div class="section abstract"><div class="htmlview paragraph">Impact toughness (or resistance to fracture) is a key material property for press hardened steel used in construction of the safety-critical elements of automotive body structures.
Jeff Wang +3 more
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Practical Metallography, 2022
Abstract The prior austenite grain size (PAGS) represents one of the most significant microstructural parameters for steel research and process development. Since the PAGS directly correlates with recrystallisation during rolling in the manufacturing process of steel plates, it has a huge influence on its mechanical properties ...
M. Laub +8 more
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Abstract The prior austenite grain size (PAGS) represents one of the most significant microstructural parameters for steel research and process development. Since the PAGS directly correlates with recrystallisation during rolling in the manufacturing process of steel plates, it has a huge influence on its mechanical properties ...
M. Laub +8 more
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Influence of Prior Austenite Grain Size on the Degree of Temper Embrittlement in Cr-Mo Steel
Journal of Materials Engineering and Performance, 2007Reversible temper embrittlement has been frequently observed in many different low alloy steels serving at high temperature, e.g. order of 500 °C. This type of embrittlement can change the brittle transgranular fracture mode to intergranular decohesion with subsequent change in fracture stress and fracture toughness.
S.A. Khan, M.A. Islam
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Materials Chemistry and Physics, 1986
Abstract Delayed failure tests were carried out on UNI 40NiCrMo7 steel subjected to sustained tensile loads and cathodically charged with hydrogen (d.d.c. = 8 mA/cm2), in a 0.1 N sulphuric acid solution. Our aim was to study the effect of austenitising heat treatment for different times and temperatures on the failure of UNI 40NiCrMo7 steel.
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Abstract Delayed failure tests were carried out on UNI 40NiCrMo7 steel subjected to sustained tensile loads and cathodically charged with hydrogen (d.d.c. = 8 mA/cm2), in a 0.1 N sulphuric acid solution. Our aim was to study the effect of austenitising heat treatment for different times and temperatures on the failure of UNI 40NiCrMo7 steel.
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Determination of the prior austenitic grain size of selected steels using a molten glass etch
Journal of Heat Treating, 1991A hot etching procedure used to reveal the prior austenitic grain size of several steels was evaluated. Etching experiments, using molten glass, were conducted on a HSLA precipitation hardened steel, two alloy steels, and a control rolled steel. For comparison purposes, the austenite grain size of the HSLA precipitation hardenable steel was determined ...
G. E. Hicho +3 more
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Austenite Reconstruction Elucidates Prior Grain Size Dependence of Toughness in a Low Alloy Steel
Metallurgical and Materials Transactions A, 2018Texture and grain size distribution of the austenite phase at high temperature have distinct effects on the subsequent transformed microstructure and mechanical properties of steel alloys at room temperature. Measurement of austenite at high temperature is not, however, a trivial task especially if orientation maps are desired.
Ranger, Chasen +5 more
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Effect of Prior Austenite Grain Size on Hydrogen Embrittlement Behaviors In 8Ni-0.1C Steel
2013The present study investigated the effect of prior austenite grain size on hydrogen embrittlement in an 8Ni-0.1C martensitic steel. The prior austenite grain size was refined from 124 μm to 4.7 μm through cyclic heat treatment of austenitizing and water quenching.
Akinobu Shibata +2 more
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