热-热变异性对单步时效变形Haynes 282合金长期蠕变断裂寿命预测的影响

IF 1 4区工程技术 Q4 ENGINEERING, MECHANICAL

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-10-27 DOI:10.1115/1.4056084

V. Cedro, M. Render, Kelechi Chukwunenye

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引用次数: 0

摘要

Haynes 282镍高温合金锻造形式的弱热对预测100,000小时蠕变断裂强度(CRS)和最大允许工作应力(MAWS)的影响是通过将用于开发该合金的ASME规范外壳的材料的两个较强热(以及第三个较弱热)的蠕变断裂数据相关联来确定的。与已建立的MAWS值相比，在700至800°C的温度范围内，估计的MAWS值高出3%至7%，而在800°C以上，当从数据分析中去除较弱的热量时，估计的MAWS值高出30%。这些结果表明，最大限度地减少对蠕变强度影响最大的性能的热变异性的重要性，特别是在开发用于高温和应力应用的合金的规范案例数据时。

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Effect of Heat-to-Heat Variability On Long-Term Creep Rupture Lifetime Predictions of Single Step Aged Wrought Haynes 282 Alloy

The impact of a weaker heat of the wrought form of Haynes 282 nickel superalloy on predicted 100,000 hours creep rupture strength (CRS) and hence Maximum Allowable Working Stress (MAWS) was determined by correlating the creep rupture data of the two stronger heats of material that were used (along with the third weaker heat) to develop the ASME Code Case for this alloy. In comparison with the established MAWS values, estimated MAWS values were 3 to 7% higher in the temperature range of 700 to 800°C and up to 30% higher above 800°C when the weaker heat was removed from the data analysis. These results show the importance of minimizing heat to heat variability of properties that most affect creep strength, especially in developing Code case data for an alloy intended for use in high temperature and stress applications.

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来源期刊

Journal of Pressure Vessel Technology-Transactions of the Asme 工程技术-工程：机械

CiteScore

2.10

自引率

10.00%

发文量

审稿时长

4.2 months

期刊介绍： The Journal of Pressure Vessel Technology is the premier publication for the highest-quality research and interpretive reports on the design, analysis, materials, fabrication, construction, inspection, operation, and failure prevention of pressure vessels, piping, pipelines, power and heating boilers, heat exchangers, reaction vessels, pumps, valves, and other pressure and temperature-bearing components, as well as the nondestructive evaluation of critical components in mechanical engineering applications. Not only does the Journal cover all topics dealing with the design and analysis of pressure vessels, piping, and components, but it also contains discussions of their related codes and standards. Applicable pressure technology areas of interest include: Dynamic and seismic analysis; Equipment qualification; Fabrication; Welding processes and integrity; Operation of vessels and piping; Fatigue and fracture prediction; Finite and boundary element methods; Fluid-structure interaction; High pressure engineering; Elevated temperature analysis and design; Inelastic analysis; Life extension; Lifeline earthquake engineering; PVP materials and their property databases; NDE; safety and reliability; Verification and qualification of software.