YIN Shi-ke, A Rong, GU Ye-man. Effects of MnS on BN Precipitation in Steel[J]. Development and Application of Materials, 2012, 27(2): 1-4,8. DOI: 10.19515/j.cnki.1003-1545.2012.02.001
Citation: YIN Shi-ke, A Rong, GU Ye-man. Effects of MnS on BN Precipitation in Steel[J]. Development and Application of Materials, 2012, 27(2): 1-4,8. DOI: 10.19515/j.cnki.1003-1545.2012.02.001
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Effects of MnS on BN Precipitation in Steel

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  • The α-particle autoradiograph and microscope were applied for studying the effects of MnS on BN precipitation in the steel containing small amount of boron. The results showed that BN nucleated on the spherical MnS and formed the compound of MnS + BN. With the increase of heating temperature over 1150 ℃ ， most of undissolved MnS particles were transformed to the shape of polyhedron， and would be ineffective for BN nucleation anymore. In addition there were also monomers of BN with different shapes formed in steel during heat treatment and their dimensions were getting larger with increase of temperature and holding time.
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