Effect of minor boron on mechanical properties of Ti-Fe-Cu-Sn-Nb alloys

Based on grain refinement and secondary phase strengthening, minor boron (B) was added to near β-Ti alloy to strengthen the alloys. Ti85Fe6Cu5Sn2Nb2 alloys with various B contents were...

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Autores principales:	GAN Zhi-cong, WANG Shuo, SHAN Sheng-feng, ZHANG Bing, JIA Yuan-zhi, MA Ming-zhen
Formato:	article
Lenguaje:	ZH
Publicado:	Journal of Materials Engineering 2021
Materias:	titanium alloy tib mechanical property microstructure Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/74209104ae744276bb2a79a317baefb4
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id	oai:doaj.org-article:74209104ae744276bb2a79a317baefb4
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spelling	oai:doaj.org-article:74209104ae744276bb2a79a317baefb42021-11-12T03:01:54ZEffect of minor boron on mechanical properties of Ti-Fe-Cu-Sn-Nb alloys1001-438110.11868/j.issn.1001-4381.2019.001222https://doaj.org/article/74209104ae744276bb2a79a317baefb42021-11-01T00:00:00Zhttp://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2019.001222https://doaj.org/toc/1001-4381Based on grain refinement and secondary phase strengthening, minor boron (B) was added to near β-Ti alloy to strengthen the alloys. Ti<sub>85</sub>Fe<sub>6</sub>Cu<sub>5</sub>Sn<sub>2</sub>Nb<sub>2</sub> alloys with various B contents were designed, prepared by using a non-consumable vacuum arc melting furnace, and hot rolled at 800℃followed by quenching. The effects of minor B addition on the microstructure and mechanical properties of Ti<sub>85</sub>Fe<sub>6</sub>Cu<sub>5</sub>Sn<sub>2</sub>Nb<sub>2</sub> alloy were investigated through microstructure observation, tensile mechanical test, fracture observation and transmit electron microscopy. The results reveal that minor B addition can refine the grains, improve the strength whereas the plasticity of the alloy is decreased. The alloy containing 0.15% (mass fraction)B possesses the better comprehensive mechanical properties(<i>σ</i><sub>0.2</sub>=1105 MPa, <i>δ</i><sub>b</sub>=4.5%).With the increase of B content, the strength of the alloy is increased and reaches up to 1156 MPa. Orthorhombic TiB compounds are formed in the alloy, distributed in the β-Tialloy matrix. Upon deformation, the fracture of TiB phases, cutting and debonding of TiB phases to the alloy matrix, formed the fracture source, resulted in the decrease of the alloy plasticity.GAN Zhi-congWANG ShuoSHAN Sheng-fengZHANG BingJIA Yuan-zhiMA Ming-zhenJournal of Materials Engineeringarticletitanium alloytibmechanical propertymicrostructureMaterials of engineering and construction. Mechanics of materialsTA401-492ZHJournal of Materials Engineering, Vol 49, Iss 11, Pp 156-162 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	titanium alloy tib mechanical property microstructure Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	titanium alloy tib mechanical property microstructure Materials of engineering and construction. Mechanics of materials TA401-492 GAN Zhi-cong WANG Shuo SHAN Sheng-feng ZHANG Bing JIA Yuan-zhi MA Ming-zhen Effect of minor boron on mechanical properties of Ti-Fe-Cu-Sn-Nb alloys
description	Based on grain refinement and secondary phase strengthening, minor boron (B) was added to near β-Ti alloy to strengthen the alloys. Ti<sub>85</sub>Fe<sub>6</sub>Cu<sub>5</sub>Sn<sub>2</sub>Nb<sub>2</sub> alloys with various B contents were designed, prepared by using a non-consumable vacuum arc melting furnace, and hot rolled at 800℃followed by quenching. The effects of minor B addition on the microstructure and mechanical properties of Ti<sub>85</sub>Fe<sub>6</sub>Cu<sub>5</sub>Sn<sub>2</sub>Nb<sub>2</sub> alloy were investigated through microstructure observation, tensile mechanical test, fracture observation and transmit electron microscopy. The results reveal that minor B addition can refine the grains, improve the strength whereas the plasticity of the alloy is decreased. The alloy containing 0.15% (mass fraction)B possesses the better comprehensive mechanical properties(<i>σ</i><sub>0.2</sub>=1105 MPa, <i>δ</i><sub>b</sub>=4.5%).With the increase of B content, the strength of the alloy is increased and reaches up to 1156 MPa. Orthorhombic TiB compounds are formed in the alloy, distributed in the β-Tialloy matrix. Upon deformation, the fracture of TiB phases, cutting and debonding of TiB phases to the alloy matrix, formed the fracture source, resulted in the decrease of the alloy plasticity.
format	article
author	GAN Zhi-cong WANG Shuo SHAN Sheng-feng ZHANG Bing JIA Yuan-zhi MA Ming-zhen
author_facet	GAN Zhi-cong WANG Shuo SHAN Sheng-feng ZHANG Bing JIA Yuan-zhi MA Ming-zhen
author_sort	GAN Zhi-cong
title	Effect of minor boron on mechanical properties of Ti-Fe-Cu-Sn-Nb alloys
title_short	Effect of minor boron on mechanical properties of Ti-Fe-Cu-Sn-Nb alloys
title_full	Effect of minor boron on mechanical properties of Ti-Fe-Cu-Sn-Nb alloys
title_fullStr	Effect of minor boron on mechanical properties of Ti-Fe-Cu-Sn-Nb alloys
title_full_unstemmed	Effect of minor boron on mechanical properties of Ti-Fe-Cu-Sn-Nb alloys
title_sort	effect of minor boron on mechanical properties of ti-fe-cu-sn-nb alloys
publisher	Journal of Materials Engineering
publishDate	2021
url	https://doaj.org/article/74209104ae744276bb2a79a317baefb4
work_keys_str_mv	AT ganzhicong effectofminorborononmechanicalpropertiesoftifecusnnballoys AT wangshuo effectofminorborononmechanicalpropertiesoftifecusnnballoys AT shanshengfeng effectofminorborononmechanicalpropertiesoftifecusnnballoys AT zhangbing effectofminorborononmechanicalpropertiesoftifecusnnballoys AT jiayuanzhi effectofminorborononmechanicalpropertiesoftifecusnnballoys AT mamingzhen effectofminorborononmechanicalpropertiesoftifecusnnballoys
_version_	1718431297019314176

Effect of minor boron on mechanical properties of Ti-Fe-Cu-Sn-Nb alloys

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