A high temperature mechanical study on PH 13-8 Mo maraging steel
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- 作者：Z. Huang<sup>asup><sup> ; sup><sup>bsup> ; M.D. Abad<sup>bsup><sup> ; sup><sup>Manueld.abad@gmail.com" class="auth_mail" title="E-mail the corresponding authorsup> ; J.K. Ramsey<sup>csup> ; M. Rebelo de Figueiredo<sup>bsup> ; D. Kaoumi<sup>csup> ; N. Li<sup>asup> ; M. Asta<sup>dsup> ; N. Gronbech-Jensen<sup>esup> ; P. Hosemann<sup>asup><sup> ; sup><sup>peterh@berkeley.edu" class="auth_mail" title="E-mail the corresponding authorsup>
- 关键词：Mechanical characterization ; Nanoindentation ; Martensite ; Aging ; Hardening ; Precipitation
- 刊名：Materials Science & Engineering A
- 出版年：2016
- 出版时间：10 January 2016
- 年：2016
- 卷：651
- 期：Complete
- 页码：574-582
- 全文大小：1909 K
文摘
High temperature mechanical measurements were conducted to study the effect of the dynamic precipitation process of PH 13-8 Mo maraging steel. Yield stress, ultimate tensile strength, total elongation, hardness, strain rate sensitivity and activation volume were evaluated as a function of the temperature. The dynamic changes in the mechanical properties at different temperatures were evaluated and a balance between precipitation hardening and annealed softening is discussed. A comparison between hardness and yield stress and ultimate tensile strength over a temperature range from 300 to 600 °C is made. The behavior of the strain rate sensitivity was correlated with the intermetallic precipitates formed during the experiments.