Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V

Mangesh V. Pantawane; Sriswaroop Dasari; Srinivas Aditya Mantri; Rajarshi Banerjee; Narendra B. Dahotre

doi:10.1080/21663831.2020.1772396

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Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V

Original Reports | 更新时间：2026-08-19

- Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V
- Materials Research Letters Vol. 8, Issue 10, Pages: 383-389(2020)
- 作者机构：
  
  1. a Department of Materials Science and Engineering University of North Texas Denton TX USA
  2. b Center for Agile and Adaptive Additive Manufacturing University of North Texas Denton
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2020.1772396
  CLC：
- Online First：01 June 2020，
  
  Published：2020
- 稿件说明：
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Mangesh V. Pantawane, Sriswaroop Dasari, Srinivas Aditya Mantri, et al. Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V[J]. Materials Research Letters, 2020, 8(10): 383-389.
DOI：

Mangesh V. Pantawane, Sriswaroop Dasari, Srinivas Aditya Mantri, et al. Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V[J]. Materials Research Letters, 2020, 8(10): 383-389. DOI： 10.1080/21663831.2020.1772396.

摘要

Abstract

BSTRACTThis paper reports the computational approach adopted for thermo-diffusion kinetics to rationalize homogenously distributed nanoscale vanadium-rich clusters formed within the martensite laths of Ti6Al4V alloy printed using laser powder bed fusion at an energy density of 52.08J/mm3. The computations were conducted using a finite element method based thermal model

which predicted extremely rapid thermokinetics associated with the thermal cycles experienced at any given location of LPBF-printed Ti6Al4V. The numerically estimated effective V diffusion length of 6.61 nm indicated kinetic-limited diffusion resulting in V nano-clusters and are in good agreement with the atom probe tomography data giving a value of half the inter-cluster spacing of 7 nm.

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Related Institution

a Erich Schmid Institute of Materials Science Austrian Academy of Sciences

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b Department of Mechanical Engineering City University of Hong Kong

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