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Date of download: 1/13/2018 Copyright © ASME. All rights reserved.

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1 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Conventional uniaxial creep test specimen [14]

2 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Conventional notched bar specimen [14]

3 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Small ring specimen dimensions and loading arrangement (R ∼ 3–10 mm, d ∼ b ∼ 1–2 mm)

4 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Minimum creep test strain rate data for (Bar-257) P91 steel at 650 °C [9]

5 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Impression creep test specimen (a) and loading arrangement (b), (w ≈ b ≈ 10 mm, di ≈ 1 mm, h ≈ 2.5 mm), loading area is bdi

6 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: (a) Minimum creep strain rate data obtained from uniaxial and impression creep tests for a 2-1/4Cr1Mo weld metal at 640 °C [20]. (b) Minimum creep strain rate data obtained from uniaxial and impression creep tests for 316 stainless steel at 600 °C [20].

7 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: The small two-bar specimen dimensions and loading arrangement, (Lo ∼ 13 mm, k ∼ 6.5 mm, Di ∼ 5 mm, and d ∼ b ∼ 2 mm)

8 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Converted TBS creep strain curves together with the corresponding uniaxial creep strain curves for P91 steel at 600 °C [16]

9 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Converted TBS creep strain curves together with the corresponding uniaxial creep strain curves for (Bar-257) P91 steel at 650 °C

10 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Minimum creep strain rates for P91 steel at 600 °C, uniaxial and TBS tests [16]

11 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Minimum creep strain rates for (Bar-257) P91 steel at 650 °C, for the uniaxial and the TBS tests

12 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Creep rupture data obtained from TBS and uniaxial specimens for P91 steel at 600 °C [16]

13 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Creep rupture data obtained from TBS and uniaxial specimens for (Bar-257) P91 steel at 650 °C [28]

14 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: The experimental converted TBS creep strain curves, for (Bar-257) P91 steel at 650 °C and the fitted creep strain curves using Kachanov model with Ø = 9.5 and Liu–Murakami model with q2 = 4.00

15 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: The experimental converted TBS creep strain curves, for P91 steel at 600 °C and the fitted creep strain curves using Kachanov model with Ø = 19.00 and Liu–Murakami model with q2 = 7.00

16 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Small notched specimen dimensions and loading application

17 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Finite element mesh and the boundary conditions

18 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Contour plot of damage parameter, ω, in the small notched specimen for (Bar-257) P91 steel at 650 °C

19 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: The effect of α value on uniaxial specimen, Bridgman notch specimens and small notched specimens with varies R/w ratio, w = 1 for all small notched cases

20 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: A photo of the small notched specimens manufactured using EDM machine

21 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Determining α value for (Bar-257) P91 steel at 650 °C using small notched specimen

22 Date of download: 1/13/2018 Copyright © ASME. All rights reserved. From: On the Determination of Material Creep Constants Using Miniature Creep Test Specimens J. Eng. Mater. Technol. 2014;136(2): doi: / Figure Legend: Comparison between (i) the converted TBS creep strain versus time curves obtained from the FE analyses, using the Liu–Murakami model and the material constants obtained from the TBS creep tests and (ii) the corresponding uniaxial experimental creep strain versus time curves, for (Bar-257) P91 steel at 650 °C


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