Results 161 to 170 of about 1,418 (199)

Effects of the prior austenite grain size on the ductility of fully pearlitic eutectoid steel

Metallurgical Transactions A, 1986
The 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
openaire   +1 more source

Determination of grain size distribution of prior austenite grains through a combination of a modified contrasting method and machine learning

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, B.-I. Bachmann, E. Detemple, F. Scherff, T. Staudt, M. Müller, D. Britz, F. Mücklich, C. Motz   +8 more
openaire   +1 more source

Effect of Prior Austenite Grain Size on Pearlite Transformation in a Hypoeuctectoid Fe-C-Mn Steel

Metallurgical and Materials Transactions A, 2013
Peer ...
Aranda, M. M., Kim, B., Rementería, Rosalía, Capdevila, Carlos, García de Andrés, Carlos   +4 more
openaire   +2 more sources

Determination of the prior austenitic grain size of selected steels using a molten glass etch

Journal of Heat Treating, 1991
A 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, L. C. Smith, C. A. Handwerker, D. A. Kauffman   +3 more
openaire   +1 more source

Influence of Prior Austenite Grain Size on the Degree of Temper Embrittlement in Cr-Mo Steel

Journal of Materials Engineering and Performance, 2007
Reversible 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
openaire   +1 more source

The effect of prior-austenite grain size on the hydrogen embrittlement susceptibility of UNI 40NiCrMo7

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.
openaire   +1 more source

Austenite Reconstruction Elucidates Prior Grain Size Dependence of Toughness in a Low Alloy Steel

Metallurgical and Materials Transactions A, 2018
Texture 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.
Chasen Ranger, Vahid Tari, Susan Farjami, Matthew J. Merwin, Lionel Germain, Anthony Rollett   +5 more
openaire   +1 more source

Effect of Prior Austenite Grain Size on Hydrogen Embrittlement Behaviors In 8Ni-0.1C Steel

2013
The 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, Takahiro Matsuoka, Nobuhiro Tsuji   +2 more
openaire   +1 more source

Effects of Steel Chemistry and Reheating Temperature on Prior Austenite Grain Size

AISTech 2021 Proceedings of the Iron and Steel Technology Conference, 2021
D. Bai, E. Lynch, J. Mineart, H. Tekle
openaire   +1 more source

Hydrogen-induced delayed fracture of a martensitic steel with fine prior-austenite grain size

Journal de Physique IV (Proceedings), 2003
The influence of the grain size of the prior-austenite on the hydrogen-induced delayed fracture property was investigated for a medium carbon tempered martensitic steel (JIS-SCM440) with a tensile strength of 1400MPa. Thermomechanical treatment, which consists of a warm working at 873K by multi-pass bar rolling of tempered martensite and subsequent ...
Y. Kimura, S. Takagi, T. Hara, S. Terasaki, K. Tsuzaki   +4 more
openaire   +1 more source