Development of novel mechanical processing method of GA steel sheets using stress-induced phase transformation
利用应力诱导相变开发GA钢板的新型机械加工方法
基本信息
- 批准号:23656451
- 负责人:
- 金额:$ 2.5万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Challenging Exploratory Research
- 财政年份:2011
- 资助国家:日本
- 起止时间:2011 至 2012
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Based on the hypothesis that plastic deformability appears by the stress-induced transformation from the Fe-Zn intermetallic compounds to hcp/fcc phase, X-ray powder diffraction analysis using a diamond anvil was carried out to estimate the critical pressure of transformation and bulk modulus of the Fe-Zn intermetallics at low- and high-pressure conditions. The samples of zeta and Gamma1 phases collected as the dross phase in the previous study, were examined for the possible presence of phase transitions. No phase transition was observed for the Gamma1 phase up to 30GPa at room temperature, while clear evidence of the phase transition to the hcp phase for the zeta phase was obtained. The phase stability was estimated based on the calculation of the assessed free energy change of mixing (chemical energy) for the Fe-Zn system and estimated values of the bulk modulus and molar volume for the low- and high-pressure phase, and the critical pressures for the phase transitions are proposed.
基于Fe-Zn金属间化合物的塑性变形是通过应力诱导相变而发生的假设,利用金刚石对顶砧X射线粉末衍射分析,估算了Fe-Zn金属间化合物在低压和高压条件下的相变临界压力和体积模量。在先前的研究中作为浮渣相收集的zeta和Gamma 1相的样品被检查是否可能存在相变。在室温下,在高达30 GPa的压力下没有观察到γ 1相的相变,而获得了zeta相向hcp相相变的明确证据。的相稳定性估计的基础上计算的评估自由能变化的混合(化学能)的Fe-Zn系统和估计值的体积模量和摩尔体积的低和高压相,并提出了临界压力的相变。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
DACを用いた高圧下におけるFe-Zn系金属間化合物の相変態挙動
使用 DAC 研究高压下 Fe-Zn 金属间化合物的相变行为
- DOI:
- 发表时间:2013
- 期刊:
- 影响因子:0
- 作者:上田涼平;岡田卓;田中和彦;三好正悟;山口周
- 通讯作者:山口周
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YAMAGUCHI Shu其他文献
YAMAGUCHI Shu的其他文献
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