Variation of elastic mechanical properties with texture, porosity, and defect characteristics in laser powder bed fusion 316L stainless steel

被引：67

作者：

Garlea, E. ^{[1
]}

Choo, H. ^{[2
]}

Sluss, C. C. ^{[1
]}

Koehler, M. R. ^{[2
]}

Bridges, R. L. ^{[1
]}

Xiao, X. ^{[3
,5
]}

Ren, Y. ^{[3
]}

Jared, B. H. ^{[4
]}

机构：

[1] CNS Y 12 Natl Secur Complex, POB 2009 MS 8097, Oak Ridge, TN 37831 USA

[2] Univ Tennessee, Knoxville, TN 37996 USA

[3] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[4] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA

[5] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2019年 / 763卷

关键词：

Resonant ultrasound spectroscopy (RUS); Elastic mechanical properties; X-ray synchrotron micro-tomography and diffraction; Porosity and texture; Stainless steel; Laser powder bed fusion; YOUNGS MODULUS; POISSONS RATIO; BEHAVIOR; PARTS; PARAMETERS;

D O I：

10.1016/j.msea.2019.138032

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Elastic mechanical properties of 316 L stainless steel samples fabricated using laser powder bed fusion were studied non-destructively through resonant ultrasound spectroscopy. Samples in five different conditions were obtained by varying the laser power from 103 W (the highest density condition) to 68 W (the lowest density condition) at constant laser speed, producing samples with a volume energy density in the 24.5-16.5 J/mm(3) range and volumetric porosity in the 0.1-10% range. The observed elastic mechanical properties are discussed taking into consideration the bulk texture developed and quantitative pore characteristics studied using high-energy high-resolution synchrotron X-ray diffraction and X-ray computed micro-tomography, respectively. Furthermore, empirical exponential relationships are provided to express the functional dependence of Young's and shear moduli with porosity.

引用

页数：15

共 32 条

[1] The Origin of Microstructural Diversity, Texture, and Mechanical Properties in Electron Beam Melted Ti-6Al-4V [J].

Al-Bermani, S. S. ;

Blackmore, M. L. ;

Zhang, W. ;

Todd, I. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2010, 41A (13) :3422-3434

[2] Effect of build geometry on the β-grain structure and texture in additive manufacture of Ti-6Al-4V by selective electron beam melting [J].

Antonysamy, A. A. ;

Meyer, J. ;

Prangnell, P. B. .

MATERIALS CHARACTERIZATION, 2013, 84 :153-168

[3] Texture Analysis with MTEX - Free and Open Source Software Toolbox [J].

Bachmann, F. ;

Hielscher, R. ;

Schaeben, H. .

TEXTURE AND ANISOTROPY OF POLYCRYSTALS III, 2010, 160 :63-+

[4] Microstructure and mechanical behavior of porous sintered steels [J].

Chawla, N ;

Deng, X .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 390 (1-2) :98-112

[5] Investigation into the effect of process parameters on microstructural and physical properties of 316L stainless steel parts by selective laser melting [J].

Cherry, J. A. ;

Davies, H. M. ;

Mehmood, S. ;

Lavery, N. P. ;

Brown, S. G. R. ;

Sienz, J. .

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2015, 76 (5-8) :869-879

[6] Effect of laser power on defect, texture, and microstructure of a laser powder bed fusion processed 316L stainless steel [J].

Choo, Hahn ;

Sham, Kin-Ling ;

Bohling, John ;

Ngo, Austin ;

Xiao, Xianghui ;

Ren, Yang ;

Depond, Philip J. ;

Matthews, Manyalibo J. ;

Garlea, Elena .

MATERIALS & DESIGN, 2019, 164

[7] Young's modulus and volume porosity relationships for additive manufacturing applications [J].

Choren, J. A. ;

Heinrich, S. M. ;

Silver-Thorn, M. B. .

JOURNAL OF MATERIALS SCIENCE, 2013, 48 (15) :5103-5112

[8] Additive manufacturing of metallic components - Process, structure and properties [J].

DebRoy, T. ;

Wei, H. L. ;

Zuback, J. S. ;

Mukherjee, T. ;

Elmer, J. W. ;

Milewski, J. O. ;

Beese, A. M. ;

Wilson-Heid, A. ;

De, A. ;

Zhang, W. .

PROGRESS IN MATERIALS SCIENCE, 2018, 92 :112-224

[9] POISSONS RATIO OF POROUS AND MICROCRACKED SOLIDS - THEORY AND APPLICATION TO OXIDE SUPERCONDUCTORS [J].

DUNN, ML ;

LEDBETTER, H .

JOURNAL OF MATERIALS RESEARCH, 1995, 10 (11) :2715-2722

[10] Evaluation of defects in materials using resonant ultrasound spectroscopy [J].

Flynn, Kevin ;

Radovic, Miladin .

JOURNAL OF MATERIALS SCIENCE, 2011, 46 (08) :2548-2556

← 1 2 3 4 →