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Microstructural evolution and mechanical properties of Ti-1300 alloy fabricated by laser engineered net shaping
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Haibo XING1, 2, Guojun ZHANG1, Shewei XIN2, Siyuan ZHANG2, Hailong GENG2, Yunbo ZHANG1, 2
Journal of Materials Engineering | 2025, 53(11) : 143 - 152
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Journal of Materials Engineering | 2025, 53(11): 143-152
• RESEARCH ARTICLE •
Microstructural evolution and mechanical properties of Ti-1300 alloy fabricated by laser engineered net shaping
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Haibo XING1, 2, Guojun ZHANG1, Shewei XIN2, Siyuan ZHANG2, Hailong GENG2, Yunbo ZHANG1, 2
Affiliations
  • 1.School of Materials Science and Engineering，Xi’an University of Technology，Xi’an 710048，China
  • 2.Northwest Institute for Non-ferrous Metal Research，Xi’an 710016，China
Published: 2025-11-20 doi: 10.11868/j.issn.1001-4381.2024.000465
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The β titanium alloy Ti-1300 is fabricated utilizing laser engineered net shaping （LENS） technology. This study systematically examine the microstructural evolution of the alloy along the deposition direction during the LENS process， and elucidate the intrinsic relationship between its mechanical properties and microstructure. The results indicate that the thermal cycling of each deposited layer in the LENS process has a profound impact on the microstructural evolution. Initially， columnar crystals are formed with a thickness of （15.6±1.2） mm， comprising approximately 20% of the total deposited thickness. Subsequently， these grains transform into equiaxed grains. Within the as-deposited grains， the microstructure undergo a transition from a basket-weave structure to a lamellar structure， and the discontinuous grain boundary α phase changes to a continuous grain boundary α phase along the deposition direction. Notably， the basket-weave microstructure imparts exceptional strength to the alloy. However， the continuous grain boundary α phase tends to promote intergranular fracture， resulting in reduced ductility.

laser engineered net shaping technique  /  Ti-1300 alloy  /  microstructure evolution  /  mechanical property
Haibo XING, Guojun ZHANG, Shewei XIN, Siyuan ZHANG, Hailong GENG, Yunbo ZHANG. Microstructural evolution and mechanical properties of Ti-1300 alloy fabricated by laser engineered net shaping[J]. Journal of Materials Engineering, 2025 , 53 (11) : 143 -152 . DOI: 10.11868/j.issn.1001-4381.2024.000465
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Year 2025 volume 53 Issue 11
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Article Info
doi: 10.11868/j.issn.1001-4381.2024.000465
  • Receive Date：2024-06-25
  • Online Date：2026-01-21
  • Published：2025-11-20
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  • Received：2024-06-25
  • Revised：2024-08-12
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    1.School of Materials Science and Engineering，Xi’an University of Technology，Xi’an 710048，China
    2.Northwest Institute for Non-ferrous Metal Research，Xi’an 710016，China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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