Tensile behavior of 17-4PH stainless steel under rapid heating
Tensile behavior of 17-4PH stainless steel under rapid heating
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DOI：
10.4028/www.scientific.net/kem.297-300.1482
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发表时间：
2005-01-01
期刊：
影响因子：
--
通讯作者：
Kim, JH
中科院分区：
文献类型：
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作者：
Kim, JH;Lee, KB;Kim, JH
从强度和力学行为两个方面评价了17-4PH钢在不同加热条件下的拉伸特性。拉伸试验是在配备高温炉的材料试验机上进行的高温条件下进行的，以及在红外加热系统上进行的快速加热条件下进行的。将快速升温试验结果与高温拉伸试验结果进行了对比，考察了升温速率对屈服强度的影响。结果表明，屈服温度和断裂温度随升温速率的增加而升高，随预载荷量的增加而降低。提出了考虑升温速率影响的升温速率-屈服温度参数，并由这些参数的主曲线描述屈服应力。研究结果和方法可用于超音速飞行器结构在高升温速率下的安全裕度数据。
The tensile characteristics for 17-4PH steel obtained from various heating conditions were evaluated in terms of strength and mechanical behavior. The tensile tests were conducted under both elevated temperature condition with material testing machine equipped with high temperature furnace and rapid heating condition with infrared heating system. The rapid heating test results were compared with tensile test at elevated temperature with respect to the yield strength to investigate the influence of heating rate. It is found that yield and rupture temperatures increase with increasing heating rate, but decrease with increasing pre-loading. The heating rate-yield temperature parameters were presented to take into account the heating rate effect and to describe yield stress from master curves of these parameters. The results and methodology from this study can be used for margin of safety data for supersonic vehicle structures when subjected to high heating rate.