极端温度循环下氧化镨陶瓷涂层晶界裂纹扩展预测数据

本数据结构包含12个字段如下：检测批次（字符串型，用于唯一标识氧化镨陶瓷涂层检测样本，）；材料疲劳常数C（数值型，氧化镨陶瓷涂层的固有疲劳特性参数）；材料疲劳指数m（数值型，反映涂层疲劳裂纹扩展对应力强度因子变化的敏感程度）；弹性模量E（数值型，单位GPa，表征涂层抵抗弹性变形的能力）；热膨胀系数α（数值型，单位1×10^−6/∘C，描述涂层随温度变化的膨胀程度）；温度变化幅度ΔT（数值型，单位∘C，为单次温度循环中最高与最低温度的差值）；循环次数N（数值型，单位cycles，指涂层经历的极端温度循环次数）；初始裂纹长度a0（数值型，单位mm，为温度循环实验开始前涂层的裂纹长度）；单次的裂纹扩展量dN/da（数值型，单位mm/cycle，由裂纹扩展公式计算得出，表征单次循环的裂纹扩展程度）；极端温度循环下的总扩展量Δa（数值型，单位mm，为单次裂纹扩展量与循环次数的乘积）；最终裂纹长度afinal（数值型，单位mm，为初始裂纹长度与总扩展量之和）；抗裂纹扩展能力分级标准（字符串型，根据dN/da值分为高、中、低抗裂纹扩展能力三级）。

This dataset structure includes 12 fields, detailed below:
1. Detection Batch ("string type", used to uniquely identify test specimens of praseodymium oxide ceramic coatings)
2. Material Fatigue Constant C ("numeric type", inherent fatigue characteristic parameter of praseodymium oxide ceramic coatings)
3. Material Fatigue Exponent m ("numeric type", reflecting the sensitivity of coating fatigue crack growth to changes in stress intensity factor)
4. Elastic Modulus E ("numeric type", unit: GPa, characterizing the coating's ability to resist elastic deformation)
5. Thermal Expansion Coefficient α ("numeric type", unit: 1×10^−6/°C, describing the expansion degree of the coating as temperature changes)
6. Temperature Change Range ΔT ("numeric type", unit: °C, the difference between the maximum and minimum temperatures in a single temperature cycle)
7. Number of Cycles N ("numeric type", unit: cycles, referring to the number of extreme temperature cycles the coating has experienced)
8. Initial Crack Length a0 ("numeric type", unit: mm, the crack length of the coating before the start of the temperature cycle test)
9. Single-cycle Crack Growth Rate dN/da ("numeric type", unit: mm/cycle, calculated using the crack growth formula, representing the crack growth degree per cycle)
10. Total Crack Growth Δa under Extreme Temperature Cycles ("numeric type", unit: mm, the product of single-cycle crack growth rate and number of cycles)
11. Final Crack Length afinal ("numeric type", unit: mm, the sum of initial crack length and total crack growth)
12. Crack Growth Resistance Grading Standard ("string type", divided into three levels of high, medium and low crack growth resistance based on the dN/da value)

搜集汇总

背景与挑战

背景概述

该数据集聚焦于氧化镨陶瓷涂层在极端温度循环环境下的性能研究，专门预测晶界裂纹的扩展行为。它可能包含实验或模拟数据，用于分析材料在热应力下的失效机制，支持相关工程领域的可靠性评估和优化设计。