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Title: Hydrogen-enabled microstructure and fatigue strength engineering of titanium alloys

Abstract

Traditionally, titanium alloys with satisfactory mechanical properties can only be produced via energy-intensive and costly wrought processes, while titanium alloys produced using low-cost powder metallurgy methods consistently result in inferior mechanical properties, especially low fatigue strength. Herein, we demonstrate a new microstructural engineering approach for producing low-cost titanium alloys with exceptional fatigue strength via the hydrogen sintering and phase transformation (HSPT) process. The high fatigue strength presented in this work is achieved by creating wroughtlike microstructures without resorting to wrought processing. This is accomplished by generating an ultrafine-grained as-sintered microstructure through hydrogen-enabled phase transformations, facilitating the subsequent creation of fatigue-resistant microstructures via simple heat treatments. Finally, the exceptional strength, ductility, and fatigue performance reported in this paper are a breakthrough in the field of low-cost titanium processing.

Authors:
 [1];  [2];  [2];  [2];  [3]
  1. Univ. of Utah, Salt Lake City, UT (United States); United States Army Research Lab., Aberdeen Proving Ground, MD (United States)
  2. Univ. of Utah, Salt Lake City, UT (United States)
  3. United States Army Research Lab., Aberdeen Proving Ground, MD (United States)
Publication Date:
Research Org.:
Univ. of Utah, Salt Lake City, UT (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office
OSTI Identifier:
1347520
Grant/Contract Number:  
EE0005761
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; metals and alloys; titanium alloys; characterization and analytical techniques; design, synthesis and processing

Citation Formats

Paramore, James D., Fang, Zhigang Zak, Dunstan, Matthew, Sun, Pei, and Butler, Brady G.. Hydrogen-enabled microstructure and fatigue strength engineering of titanium alloys. United States: N. p., 2017. Web. doi:10.1038/srep41444.
Paramore, James D., Fang, Zhigang Zak, Dunstan, Matthew, Sun, Pei, & Butler, Brady G.. Hydrogen-enabled microstructure and fatigue strength engineering of titanium alloys. United States. https://doi.org/10.1038/srep41444
Paramore, James D., Fang, Zhigang Zak, Dunstan, Matthew, Sun, Pei, and Butler, Brady G.. 2017. "Hydrogen-enabled microstructure and fatigue strength engineering of titanium alloys". United States. https://doi.org/10.1038/srep41444. https://www.osti.gov/servlets/purl/1347520.
@article{osti_1347520,
title = {Hydrogen-enabled microstructure and fatigue strength engineering of titanium alloys},
author = {Paramore, James D. and Fang, Zhigang Zak and Dunstan, Matthew and Sun, Pei and Butler, Brady G.},
abstractNote = {Traditionally, titanium alloys with satisfactory mechanical properties can only be produced via energy-intensive and costly wrought processes, while titanium alloys produced using low-cost powder metallurgy methods consistently result in inferior mechanical properties, especially low fatigue strength. Herein, we demonstrate a new microstructural engineering approach for producing low-cost titanium alloys with exceptional fatigue strength via the hydrogen sintering and phase transformation (HSPT) process. The high fatigue strength presented in this work is achieved by creating wroughtlike microstructures without resorting to wrought processing. This is accomplished by generating an ultrafine-grained as-sintered microstructure through hydrogen-enabled phase transformations, facilitating the subsequent creation of fatigue-resistant microstructures via simple heat treatments. Finally, the exceptional strength, ductility, and fatigue performance reported in this paper are a breakthrough in the field of low-cost titanium processing.},
doi = {10.1038/srep41444},
url = {https://www.osti.gov/biblio/1347520}, journal = {Scientific Reports},
issn = {2045-2322},
number = ,
volume = 7,
place = {United States},
year = {2017},
month = {2}
}

Works referenced in this record:

Titanium in the family automobile: The cost challenge
journal, February 2004


Powder metallurgy of titanium alloys
journal, January 1990


Cost-Effective Blended Elemental Powder Metallurgy of Titanium Alloys for Transportation Application
journal, August 2000


Titanium Powder Metallurgy for Automotive Components
journal, January 2002


Fatigue Resistance of Powder Metallurgy Ti–6Al–4V Alloy
journal, May 2004


Diffusion during Powder Metallurgy Synthesis of Titanium Alloys
journal, April 2008


Role of Hydrogen in the Process of Sintering of Titanium Powders
journal, March 2012


Role of Surface Contamination in Titanium PM
journal, August 2012


Faceted fracture in beta annealed titanium alloys
journal, March 1979


Hydrogen Sintering of Titanium to Produce High Density Fine Grain Titanium Alloys
journal, April 2012


The investigation of die-pressing and sintering behavior of ITP CP-Ti and Ti-6Al-4V powders
journal, November 2012


Cold compaction study of Armstrong Process® Ti–6Al–4V powders
journal, December 2011


Evaluation of Low Cost Titanium Alloy Products
journal, April 2009


Consolidation Process in Near Net Shape Manufacturing of Armstrong CP-Ti/Ti-6Al-4V Powders
journal, May 2010


New Powder Metallurgical Approach to Achieve High Fatigue Strength in Ti-6Al-4V Alloy
journal, February 2016


Phase Transformations and Formation of Ultra-Fine Microstructure During Hydrogen Sintering and Phase Transformation (HSPT) Processing of Ti-6Al-4V
journal, September 2015


Effect of stress state on the stress-induced martensitic transformation in polycrystalline Ni-Ti alloy
journal, October 1996


Effect of microstructure on notch fatigue properties of Ti-6Al-4V
journal, December 1976


Works referencing / citing this record:

Feasibility of Using Titanium Machine Turnings in Powder Metallurgy Processes
journal, February 2019


Powder metallurgy of titanium – past, present, and future
journal, August 2017


Fabrication of Ti from a blend of Ti and TiH 2 powders via powder metallurgy processing
journal, September 2019