Correlation between the thermodynamic stability of austenite and the shear modulus of polycrystalline steel alloy

被引：6

作者：

Terasaki, H. ^{[1
]}

Yamagishi, H. ^{[2
]}

Moriguchi, K. ^{[3
]}

Tomio, Y. ^{[3
]}

Komizo, Y. ^{[1
]}

机构：

[1] Osaka Univ, Joining & Welding Res Inst, Ibaraki, Japan

[2] Toyama Ind Technol Ctr, Takaoka, Toyama 9330981, Japan

[3] Sumitomo Met Ind Ltd, Amagasaki, Hyogo 660, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 09期

关键词：

CUBIC TRANSITION-METALS; ELASTIC-MODULI; INTERNAL FRICTIONS; LOW-CARBON; TEMPERATURE; TRANSFORMATION;

D O I：

10.1063/1.4712535

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Elastic moduli in steel alloys with different martensitic start temperatures were measured during the cooling cycle by using the ultrasonic pulse sing-around method. Our findings show that the shear modulus governs austenite stability prior to martensitic transformation in polycrystalline steel alloys. A non-linear increase in shear modulus is also observed during the cooling cycle. The correlation between elastic modulus and austenite stability in polycrystalline steel alloys is discussed, and the compatibility of the results obtained in this study with the stability theory analyzed in a single crystal is also discussed. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4712535]

引用

页数：4

共 17 条

[1] ABINITIO CALCULATION OF THE TETRAGONAL SHEAR MODULI OF THE CUBIC TRANSITION-METALS [J].