Effect of boron and nitrogen addition on the solidification microstructure and hardness of high speed steel type mill roll

Kengo Yoshimoto; Ryutaro Hara; Masahiro Yamamoto; Gen Ito; Kazunori Kamimiyada; Ichihito Narita; Hirofumi Miyahara

Effect of boron and nitrogen addition on the solidification microstructure and hardness of high speed steel type mill roll

Kengo Yoshimoto, Ryutaro Hara, Masahiro Yamamoto, Gen Ito, Kazunori Kamimiyada, Ichihito Narita, Hirofumi Miyahara

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Influence of boron and nitrogen addition as one of the alloying element on the formation of solidification structure and the improvement of hardness after thermal treatments was investigated for high-speed-steel alloys (Fe-2%C-5%Cr-5%Mo-5%V). The macrohardness of the quenched specimens gradually increases with increasing quenching temperature. Nitrogen addition helps to improve the hardness as carbon does. Boron addition is also contributed to the increasing of hardness. B-containing specimens maintained higher tempered-hardness than HSS and N-containing specimens quenched at the peak hardness. The specimen, which contains high volume fraction of residual austenite, shows the superior secondary hardening after the optimized tempering.

Original language	English
Title of host publication	72nd World Foundry Congress, WFC 2016
Publisher	The WFO (The World Foundry Organization Ltd)
Pages	281-282
Number of pages	2
ISBN (Electronic)	9781510833128
Publication status	Published - Jan 1 2016
Event	72nd World Foundry Congress, WFC 2016 - Nagoya, Japan Duration: May 21 2016 → May 25 2016

Publication series

Name	72nd World Foundry Congress, WFC 2016

Other

Other	72nd World Foundry Congress, WFC 2016
Country/Territory	Japan
City	Nagoya
Period	5/21/16 → 5/25/16

All Science Journal Classification (ASJC) codes

Materials Chemistry
Metals and Alloys

Cite this

Effect of boron and nitrogen addition on the solidification microstructure and hardness of high speed steel type mill roll. / Yoshimoto, Kengo; Hara, Ryutaro; Yamamoto, Masahiro et al.

72nd World Foundry Congress, WFC 2016. The WFO (The World Foundry Organization Ltd), 2016. p. 281-282 (72nd World Foundry Congress, WFC 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Yoshimoto, K, Hara, R, Yamamoto, M, Ito, G, Kamimiyada, K, Narita, I & Miyahara, H 2016, Effect of boron and nitrogen addition on the solidification microstructure and hardness of high speed steel type mill roll. in 72nd World Foundry Congress, WFC 2016. 72nd World Foundry Congress, WFC 2016, The WFO (The World Foundry Organization Ltd), pp. 281-282, 72nd World Foundry Congress, WFC 2016, Nagoya, Japan, 5/21/16.

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abstract = "Influence of boron and nitrogen addition as one of the alloying element on the formation of solidification structure and the improvement of hardness after thermal treatments was investigated for high-speed-steel alloys (Fe-2%C-5%Cr-5%Mo-5%V). The macrohardness of the quenched specimens gradually increases with increasing quenching temperature. Nitrogen addition helps to improve the hardness as carbon does. Boron addition is also contributed to the increasing of hardness. B-containing specimens maintained higher tempered-hardness than HSS and N-containing specimens quenched at the peak hardness. The specimen, which contains high volume fraction of residual austenite, shows the superior secondary hardening after the optimized tempering.",

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AU - Yoshimoto, Kengo

AU - Hara, Ryutaro

AU - Yamamoto, Masahiro

AU - Ito, Gen

AU - Kamimiyada, Kazunori

AU - Narita, Ichihito

AU - Miyahara, Hirofumi

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N2 - Influence of boron and nitrogen addition as one of the alloying element on the formation of solidification structure and the improvement of hardness after thermal treatments was investigated for high-speed-steel alloys (Fe-2%C-5%Cr-5%Mo-5%V). The macrohardness of the quenched specimens gradually increases with increasing quenching temperature. Nitrogen addition helps to improve the hardness as carbon does. Boron addition is also contributed to the increasing of hardness. B-containing specimens maintained higher tempered-hardness than HSS and N-containing specimens quenched at the peak hardness. The specimen, which contains high volume fraction of residual austenite, shows the superior secondary hardening after the optimized tempering.

AB - Influence of boron and nitrogen addition as one of the alloying element on the formation of solidification structure and the improvement of hardness after thermal treatments was investigated for high-speed-steel alloys (Fe-2%C-5%Cr-5%Mo-5%V). The macrohardness of the quenched specimens gradually increases with increasing quenching temperature. Nitrogen addition helps to improve the hardness as carbon does. Boron addition is also contributed to the increasing of hardness. B-containing specimens maintained higher tempered-hardness than HSS and N-containing specimens quenched at the peak hardness. The specimen, which contains high volume fraction of residual austenite, shows the superior secondary hardening after the optimized tempering.

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ER -

Effect of boron and nitrogen addition on the solidification microstructure and hardness of high speed steel type mill roll

Abstract

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All Science Journal Classification (ASJC) codes

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