• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >High-strength Fe–20Mn–Al–C-based Alloys with Low Density
【24h】

High-strength Fe–20Mn–Al–C-based Alloys with Low Density

机译：低密度高强度Fe–20Mn–Al–C基合金

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Mechanical properties of Fe–20Mn–(10–14)Al–(0–1.8)C (mass%) quaternary and Fe–20Mn–(10–14)Al–(0.75–1.8)C–5Cr (mass%) quinary alloys were investigated by hardness, cold-workability and tensile tests at room temperature. The γ(fcc) alloys in both quaternary and quinary systems with a low density of less than 7.0 g/cm~(3) showed an excellent ductility and their hardness and tensile strength increased with increasing Al and C contents. The γ+α(bcc) duplex alloys also exhibited a high tensile strength by controlling the α volume fraction. TEM observation confirmed that high hardness and tensile strength of the alloys with high Al and C contents are caused by the precipitation of nano-size κ-carbide with perovskite structure during cooling from the annealing temperature. Fe–20Mn–11Al–1.8C–5Cr alloy with a density of 6.51 g/cm~(3) showed a high specific strength of more than 180 MPa·cm~(3)/g with a good tensile elongation of 40%. The present Fe–20Mn–Al–C(–5Cr) alloys showed a higher specific strength than conventional steels.
机译：Fe–20Mn–（10–14）Al–（0–1.8）C（质量％）季铵盐和Fe–20Mn–（10–14）Al–（0.75–1.8）C–5Cr（质量％）季铵盐的力学性能在室温下通过硬度，冷加工性和拉伸试验研究了这些合金。低密度小于7.0 g / cm〜（3）的四元和五元体系中的γ（fcc）合金均具有出色的延展性，并且其硬度和抗拉强度随Al和C含量的增加而增加。通过控制α体积分数，γ+α（bcc）双相合金也表现出高拉伸强度。 TEM观察证实，Al和C含量高的合金的高硬度和抗拉强度是由于从退火温度冷却过程中析出具有钙钛矿结构的κ碳化物所致。密度为6.51 g / cm〜（3）的Fe–20Mn–11Al–1.8C–5Cr合金具有超过180 MPa·cm〜（3）/ g的高比强度，并且具有40％的良好拉伸伸长率。目前的Fe-20Mn-Al-C（-5Cr）合金比常规钢具有更高的比强度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号