Superior tensile properties of Hastelloy X enabled by additive manufacturing

Reza Ghiaasiaan; Muztahid Muhammad; Paul R. Gradl; Shuai Shao; Nima Shamsaei

doi:10.1080/21663831.2021.1911870

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Superior tensile properties of Hastelloy X enabled by additive manufacturing

Original Report | 更新时间：2026-08-19

- Superior tensile properties of Hastelloy X enabled by additive manufacturing
- Materials Research Letters Vol. 9, Issue 7, Pages: 308-314(2021)
- 作者机构：
  
  1. a National Center for Additive Manufacturing Excellence (NCAME) Auburn University Auburn AL USA
  2. b Department of Mechanical Engineering Auburn University Auburn
  3. c NASA Marshall Space Flight Center Propulsion Department Huntsville
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2021.1911870
  CLC：
- Online First：15 April 2021，
  
  Published：2021
- 稿件说明：
移动端阅览
Reza Ghiaasiaan, Muztahid Muhammad, Paul R. Gradl, et al. Superior tensile properties of Hastelloy X enabled by additive manufacturing[J]. Materials Research Letters, 2021, 9(7): 308-314.
DOI：

Reza Ghiaasiaan, Muztahid Muhammad, Paul R. Gradl, et al. Superior tensile properties of Hastelloy X enabled by additive manufacturing[J]. Materials Research Letters, 2021, 9(7): 308-314. DOI： 10.1080/21663831.2021.1911870.

摘要

Abstract

This study reports the superior tensile properties of laser powder bed fused (L-PBF) Hastelloy X compared to wrought

exhibiting enhanced yield strength and improved ductility. By analyzing the tensile response of a variety of microstructures ranging from fully dendritic to fully solutionized

the as-solidified fine inter-dendritic region network was determined to be responsible for this superiority. Characterized by high chemical gradients

the inter-dendritic regions limited motion of dislocations

blocked the formation of long deformation bands

and promoted the uniform distribution of plastic strain. Further

a deformation mechanism not well known for Hastelloy X

i.e. deformation twinning

was observed and analyzed.

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Related Institution

a National Engineering Research Center of Near-net-shape Forming for Metallic Materials Guangdong Provincial Key Laboratory for Processing and Forming of Advanced Metallic Materials South China University of Technology

b State Key Laboratory for Materials Processing and Die and Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology

a State Key Laboratory of High Performance Roll Materials and Composite Forming School of Materials Science and Engineering Tianjin University

b Suzhou Laboratory

b Suzhou Laboratory Suzhou People’s Republic of China

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