1、 STP-NU-018 CREEP-FATIGUE DATA AND EXISTING EVALUATION PROCEDURES FOR GRADE 91 AND HASTELLOY XR Prepared by: Tai Asayama and Yukio Tachibana Japan Atomic Energy Agency Date of Issuance: May 21, 2009 This report was prepared as an account of work sponsored by U.S. Department on Energy (DOE) and the A
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9、9 by ASME Standards Technology, LLC All Rights Reserved Creep-Fatigue Procedures for Grade 91 and Hastelloy XR STP-NU-018 TABLE OF CONTENTS Foreword . xi Executive Summary .xii PART I GRADE 911 1 COLLECTION OF AVAILABLE DATA 2 1.1 Outline of Collected Data 2 1.2 Evaluation of Collected Data 2 1.2.1
10、Creep Properties . 2 1.2.2 Fatigue Properties. 2 1.2.3 Creep-Fatigue Properties 3 1.2.4 Points to be Addressed . 3 2 CREEP-FATIGUE EVALUATION METHOD 15 2.1 Procedures of ASME-NH, DDS and RCC-MR 15 2.1.1 ASME-NH 15 2.1.2 DDS 17 2.1.3 RCC-MR 20 2.2 Comparison of the Procedures. 21 2.2.1 Determination
11、of Strain Range. 21 2.2.2 Initial Stress of Stress Relaxation. 21 2.2.3 Estimation of Stress Relaxation Behavior 22 2.2.4 Formulation of Creep Damage. 22 2.3 Creep-Fatigue Evaluation Without Safety Margins 22 2.3.1 Conditions of Evaluation 22 2.3.2 Description of Stress Relaxation Behavior. 23 2.3.3
12、 Creep-Fatigue Damage Evaluation and Life Prediction. 23 2.3.4 Discussions. 25 2.4 Creep-Fatigue Evaluation According to Code Procedures 27 2.4.1 Purpose. 27 2.4.2 Conditions for Evaluation 27 2.4.3 Discussions. 27 2.5 Other Factors to be Considered . 28 2.5.1 Environmental Effects on Tensile and Co
13、mpressive Hold Tests . 28 2.5.2 Effect of Thermal Aging 28 2.5.3 Conceptual Investigation of the Relationship between Time Fraction and Ductility Exhaustion Methods. 29 3 SUGGESTIONS TO IMPROVE ASME-NH PROCEDURE AND R&D ITEMS. 64 3.1 Suggestions to Improve ASME-NH Procedure. 64 3.1.1 Evaluation of C
14、reep Damage . 64 3.1.2 Evaluation of Creep-Fatigue Life Based on Creep-Damage 65 3.2 Necessary R&D Items . 65 3.2.1 Short-Term Items . 65 3.2.2 Long-Term Items 66 References 75 PART II HASTELLOY XR . 77 iii STP-NU-018 Creep-Fatigue Procedures for Grade 91 and Hastelloy XR 1 DATA COLLECTION ON HASTEL
15、LOY XR .78 1.1 Development of Hastelloy XR.78 1.2 Data of Hastelloy XR.81 1.2.1 Creep fatigue.81 1.2.2 Creep.81 1.2.3 Fatigue 81 2 CREEP-FATIGUE CRITERIA ON HASTELLOY XR 95 2.1 High Temperature Structural Design Guideline for HTGR.95 2.1.1 Introduction.95 2.1.2 Identification of Failure Modes 95 2.1
16、.3 Developments of Design Limits and Rules 96 2.1.4 Material Characterization on Hastelloy XR96 2.2 Inelastic Analysis of the Intermediate Heat Exchanger (IHX) for HTTR .105 2.2.1 Intermediate Heat Exchanger (IHX) for the HTTR105 2.2.2 Structural Integrity Evaluation of the HTTR IHX106 2.3 Summary o
17、f Creep-Fatigue Criteria on Hastelloy XR.117 3 NECESSARY RESEARCH AND DEVELOPMENT ITEMS IN RELATION TO CREEP-FATIGUE EVALUATION FOR GEN IV AND VHTR REACTORS118 3.1 Linear Summation Rule of Cycle and Time Fractions 118 3.2 Inelastic Constitutive Equations 118 3.3 Helium Environmental Effect 118 Refer
18、ences.119 Appendix A.120 Appendix B .142 Appendix C .148 Acknowledgments.149 Abbreviations And Acronyms 150 LIST OF TABLES Table 1 - Mod. 9Cr-1Mo Material Data Source List (Temp is 400C or higher.) 4 Table 2 - Chemical Composition of Mod. 9Cr-1Mo.5 Table 3 - Factor K (TABLE T-1411.1) .30 Table 4 - A
19、verage Material Properties30 Table 5 - Creep Fatigue Evaluation Conditions on Elastic Design Base31 Table 6 - Material Properties and Design Values .31 Table 7 - Suggested Options for the Improvement of Creep-Fatigue Evaluation Procedure in ASME-NH 67 Table 8 - Recommended Creep Test Conditions 67 T
20、able 9 - Recommended Creep-Fatigue Test Conditions.68 Table 10 - Specifications for Chemical Composition of Hastelloy XR and X .79 ivCreep-Fatigue Procedures for Grade 91 and Hastelloy XR STP-NU-018 Table 11 - Results of Low Cycle Fatigue Tests with Symmetric Triangular Strain Waveform on Hastelloy
21、X And Hastelloy XR at 900C In JAERI-Type B Helium Environment . 82 Table 12 - Results of Low Cycle Fatigue Tests with Trapezoidal Strain Waveform on Hastelloy XR at 900C in JAERI-Type B Helium Environment . 82 Table 13 - Impurity Levels of Simulated HTGR Helium Called JAERI-Type B Helium . 83 Table
22、14 - Chemical Composition of the Materials Hastelloy X and Hastelloy XR 84 Table 15 - Results of Creep Tests for Hastelloy XR in Air (Tube) 86 Table 16 - Results of Creep Tests for Hastelloy XR in Air (Plate) 87 Table 17 - Results of Creep Tests for Hastelloy XR in Air (Bar) 87 Table 18 - Results of
23、 Creep Tests for Hastelloy XR in Air (Subsize Specimen Machined from Tube) 88 Table 19 - Results of Creep Tests for Hastelloy XR in JAERI-Type B Helium Environment 88 Table 20 - Chemical Composition of Hastelloy XR for Creep Tests. 89 Table 21 - Results of Creep Tests for Hastelloy XR-II in Air (Pla
24、te: 10mm) 90 Table 22 - Results of Creep Tests for Hastelloy XR-II in Air (Plate: 6mm) 91 Table 23 - Results of Creep Tests for Hastelloy XR-II in Air (Tube) 91 Table 24 - Results of Creep Tests for Hastelloy XR-II In JAERI-Type B Helium Environment (Plate: 6mm). 92 Table 25 - Chemical Composition o
25、f Hastelloy XR-II for Creep Tests. 92 Table 26 - HTGR High Temperature Structural Design Guideline Features . 99 Table 27 - Mechanical Properties Data on Hastelloy XR Obtained for High Temperature Structural Design Guideline . 99 Table 28 - Major Specifications of the Intermediate Heat Exchanger for
26、 HTTR 110 Table 29 - Material Constants of the Creep Constitutive Equation for Hastelloy XR . 111 Table 30 - Cumulative Principal Creep Strain, Cumulative Creep and Fatigue Damage Factors of the Heat Transfer Tubes at First Layer in the Intermediate Heat Exchanger . 112 Table 31 - Cumulative Princip
27、al Creep Strain, Cumulative Creep and Fatigue Damage Factors of the Lower Reducer of the Center Pipe in the Intermediate Heat Exchanger 112 Table 32 - Mod. 9Cr-1Mo Creep Data (Temperature is 400C or more) . 120 Table 33 - Mod. 9Cr-1Mo Fatigue Data of JAEA (Temperature is 400C or more) 127 Table 34 -
28、 Mod. 9Cr-1Mo Creep Fatigue Data (Temperature is 400C or more) 138 LIST OF FIGURES Figure 1 - Creep Rupture: Average Curves and Experimental Values. 6 Figure 2 - Fatigue Life: Average Curves and Experimental Values at 400C 6 Figure 3 - Fatigue Life: Average Curves and Experimental Values at 450C 7 F
29、igure 4 - Fatigue Life: Average Curves and Experimental Values at 500C 7 v STP-NU-018 Creep-Fatigue Procedures for Grade 91 and Hastelloy XR Figure 5 - Fatigue Life: Average Curves and Experimental Values at 550C 8 Figure 6 - Fatigue Life: Average Curves and Experimental Values at 600C 8 Figure 7 -
30、Fatigue Life: Average Curves and Experimental Values at 650C 9 Figure 8 - Cyclic Stress-Strain Curve: Average Curve and Experimental Values at 450C.9 Figure 9 - Cyclic Stress-Strain Curve: Average Curve and Experimental Values at 500C.10 Figure 10 - Cyclic Stress-Strain Curve: Average Curve and Expe
31、rimental Values at 550C.10 Figure 11 - Cyclic Stress-Strain Curve: Average Curve and Experimental Values at 600C.11 Figure 12 - Cyclic Stress-Strain Curve: Average Curve and Experimental Values at 650C.11 Figure 13 - Creep-Fatigue Life: Average Curves and Experimental Values at 500C .12 Figure 14 -
32、Creep-Fatigue Life: Average Curves and Experimental Values at 550C .12 Figure 15 - Creep-Fatigue Life: Average Curves and Experimental Values at 600C .13 Figure 16 - Creep-Fatigue Life: Average Curves and Experimental Values at 500C .13 Figure 17 - Creep-Fatigue Life: Average Curves and Experimental
33、 Values at 550C .14 Figure 18 - Creep-Fatigue Life: Average Curves and Experimental Values at 600C .14 Figure 19 - Stress-Strain Relationship (ASME-NH) 32 Figure 20 - Stress Relaxation from Isochronous Stress-Strain Curves (ASME-NH) .32 Figure 21 - Stress-Relaxation Limit for Creep Damage (ASME-NH)3
34、3 Figure 22 - Calculation Procedure of Ke0 (DDS) 33 Figure 23 - Calculation Procedure of Initial Stress and Relaxation Process (DDS) .34 Figure 24 - Relaxation Behavior and Creep Damage (DDS)34 Figure 25 - Calculation Procedure of Creep Strain Range (RCC-MR).35 Figure 26 - Calculation Procedure of k
35、 (RCC-MR).35 Figure 27 - Creep-Fatigue Damage Envelopes for Mod. 9Cr-1Mo 36 Figure 28 - Comparison between Experimental and Calculated Values of Static Relaxation Behavior at t = 0.15% 36 Figure 29 - Comparison Between Experimental and Calculated Values of Static Relaxation Behavior at t= 0.2% 37 Fi
36、gure 30 - Comparison between Experimental and Calculated Values of Static Relaxation Behavior at t= 0.3% 37 Figure 31 - Comparison between Experimental and Calculated Values of Static Relaxation Behavior at t = 0.1% 38 Figure 32 - Comparison between Experimental and Calculated Values of Static Relax
37、ation Behavior at t = 0.2% 38 Figure 33 - Comparison between Experimental and Calculated Values of Static Relaxation Behavior at t = 0.3% 39 vi Creep-Fatigue Procedures for Grade 91 and Hastelloy XR STP-NU-018 Figure 34 - Comparison between Experimental and Calculated Values of Static Relaxation Beh
38、avior at t = 0.4535% 39 Figure 35 - Comparison between Experimental and Calculated Values of Cyclic Relaxation Behavior at t = 0.36% . 40 Figure 36 - Comparison between Experimental and Calculated Values of Cyclic Relaxation Behavior at t = 0.36% . 40 Figure 37 - Comparison between Experimental and
39、Calculated Values of Cyclic Relaxation Behavior at t = 0.494% . 41 Figure 38 - Comparison between Experimental and Calculated Values of Cyclic Relaxation Behavior at t = 0.494% . 41 Figure 39 - Comparison between Experimental and Calculated Values of Cyclic Relaxation Behavior at t = 1.0% . 42 Figur
40、e 40 - Comparison between Experimental and Calculated Values of Cyclic Relaxation Behavior at t = 1.0% . 42 Figure 41 - Evolution of Creep Damage During Stress Relaxation (DDS) 43 Figure 42 - Creep-Fatigue Damage Calculated by ASME-NH Procedure Using Monotonic Stress-Strain Curves and Strain Amplitu
41、de. 43 Figure 43 - Creep-Fatigue Damage Calculated by ASME-NH Procedure Using Monotonic Stress-Strain Curves and Strain Range 44 Figure 44 - Creep-Fatigue Damage Calculated by DDS Procedure Using Monotonic Stress-Strain Curves. 44 Figure 45 - Creep-Fatigue Damage Calculated by DDS Procedure Using Cy
42、clic Stress-Strain Curves. 45 Figure 46 - Creep-Fatigue Damage Calculated by RCC-MR Procedure Using Cyclic Stress-Strain Curves. 45 Figure 47 - Relationship between Observed Life and Predicted Life with ASME-NH Procedure Using Monotonic Stress-Strain Curves and Strain Amplitude. 46 Figure 48 - Relat
43、ionship between Observed Life and Predicted Life with ASME-NH Procedure Using Monotonic Stress-Strain Curves and Strain Amplitude. 46 Figure 49 - Relationship between Observed Life and Predicted Life with ASME-NH Procedure Using Monotonic Stress-Strain Curves with an Interception of (0.3, 0.3) . 47
44、Figure 50 - Relationship between Observed Life and Predicted Life with RCC-MR Procedure Using Cyclic Stress-Strain Curves . 47 Figure 51 - Relationship between Observed Life and Predicted Life with DDS Procedure Using Monotonic Stress-Strain Curves. 48 Figure 52 - Relationship between Observed Life
45、and Predicted Life with DDS Procedure Using Cyclic Stress-Strain Curves 48 Figure 53 - Creep-Fatigue Damage Calculated Using Experimentally Obtained Relaxation Curves 49 Figure 54 - Relationship between Observed Life and Predicted Life with ASME-NH Procedure Using Experimentally Obtained Relaxation
46、Curves. 49 vii STP-NU-018 Creep-Fatigue Procedures for Grade 91 and Hastelloy XR Figure 55 - Relationship between Observed Life and Predicted Life with DDS Procedure Using Experimentally Obtained Relaxation Curves50 Figure 56 - Relationship between Observed Life and Predicted Life with RCC-MR Proced
47、ure Using Experimentally Obtained Relaxation Curves .50 Figure 57 - Comparison of Monotonic and Cyclic Stress-Strain Curves51 Figure 58 - Relationship between Observed Life and Predicted Life with ASME-NH Procedure Using Monotonic Stress-Strain Curve 51 Figure 59 - Relationship between Observed Life
48、 and Predicted Life with DDS Procedure Using Monotonic Stress-Strain Curves .52 Figure 60 - Relationship between Observed Life and Predicted Life with RCC-MR Procedure Using Cyclic Stress-Strain Curves52 Figure 61 - Evaluation Flow of Creep-Fatigue Damage by ASME-NH Method .53 Figure 62 - Evaluation
49、 Flow of Creep-Fatigue Damage by DDS Method54 Figure 63 - Evaluation Flow of Creep-Fatigue Damage by RCC-MR Method55 Figure 64 - Comparison of Creep Damage Evaluation.56 Figure 65 - Creep-Fatigue Evaluation of Experimental Data by Code Procedure56 Figure 66 - Creep-Fatigue Evaluation of Experimental Data by Code Procedure57 Figure 67 - Comparison of Creep-Fatigue Life between Tensile Hold Tests and Compressive Hold Tests in Air.57 Figure 68 - Comparison of Creep-F
