Effect of VC addition on the microstructure and properties of Ti(C,N)-based nano cermets

Ying, Xiayu; Xiong, Ji; Guo, Zhixing; Chen, Jianzhong; Xiong, Shi‐Jie; Yang, Mei; Fan, Hongyuan

doi:10.1007/s12598-011-0433-z

Cited by 10 publications

(2 citation statements)

References 24 publications

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“…LLC method, proposed by Wang et al (2010) utilizes the locality constraints projecting each descriptor into its local-coordinate system, which are then integrated by max pooling to generate the final representation, widely used in pattern recognition (Rahmani et al 2014, Yang et al 2016. A fast approximated LLC method is adopted in our experiment, first performing a K-nearest-neighbor search and then solving a constrained least square fitting problem.…”

Section: Parameter Optimizationmentioning

confidence: 99%

An Effective Method for Modeling Two-dimensional Sky Background of LAMOST

et al. 2016

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Each CCD of LAMOST accommodates 250 spectra, while about 40 are used to observe sky background during real observations. How to estimate the unknown sky background information hidden in the observed 210 celestial spectra by using the known 40 sky spectra is the problem we solve. In order to model the sky background, usually a pre-observation is performed with all fibers observing sky background. We use the observed 250 skylight spectra as training data, where those observed by the 40 fibers are considered as a base vector set. The Locality-constrained Linear Coding (LLC) technique is utilized to represent the skylight spectra observed by the 210 fibers with the base vector set. We also segment each spectrum into small parts, and establish the local sky background model for each part. Experimental results validate the proposed method, and show the local model is better than the global model.

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Section: Parameter Optimizationmentioning

confidence: 99%

An Effective Method for Modeling Two-dimensional Sky Background of LAMOST

et al. 2016

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“…The trace alloy element additive causes the formation of the high melting point particles that appear to diffuse [11,12]; these particles on one hand pin the austenite grain boundary to block the austenite grain boundary migration and limit the austenitic grain growth up, and on the other hand, they increase the nucleation point of phase transformation to get the finer microstructure [13,14]. Adding Ti, Nb micro alloy elements to the steel can form carbonitride particles to block the austenitic grain growth up, affect the microstructure of the weld and heat-affected zone, and improve the performance of joints [15,16].…”

Section: Effects Of Inclusions and The Second Phase Particles In Cghazmentioning

confidence: 99%

Microstructure and mechanical performances of CGHAZ for oil tank steel during high heat input welding

Guoli

Yang

et al. 2013

Rare Met.

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Microstructure and mechanical performances of the coarse grain heat-affected-zone (CGHAZ) for oil tank steel with different Ti content were investigated through Gleeble-3500, scanning electron microscopy, transmission electron microscopy, and energy dispersive spectrometer. The results show that the strength and lowtemperature toughness of base material are significantly improved for the high titanium content steel, but the impact toughness of CGHAZ is seriously deteriorated after the high heat input welding and declined sharply with the heat input increasing, while the effects of heat input on impact toughness are very weak for the low titanium content steel, impact toughness of which is gradually larger than that of high titanium content steel with the welding heat input increasing because of the granular bainite increasing, TiN particle coarsening, and (Ti, Nb) N composition evolution during the high input welding for high titanium content steel.

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