DIFFUSION IN MULTICOMPONENT METALLIC SYSTEMS: V. INTERSTITIAL DIFFUSION IN DILUTE TERNARY AUSTENITES

Author:

Kirkaldy J. S.,Purdy G. R.

Abstract

A statistical calculation of the interstitial diffusion flux in a face-centered cubic lattice containing one dilute interstitial component and one substitutional component leads to a relation between the on-diagonal and off-diagonal diffusion coefficients,[Formula: see text]where the [Formula: see text]'s are pair interaction energies and N is the mole fraction. Alternatively, we may combine the thermodynamic relation obtained by neglecting thermodynamic forces due to off-diagonal chemical potential gradients,[Formula: see text]with a nearest-neighbor, regular solution calculation of the thermodynamic activities to obtain the same result.The latter thermodynamic relation is put to the experimental test for the ternary systems Fe–C–Si and Fe–C–Mn by substituting empirical thermodynamic data and comparing with values of D12/D11 obtained by means of a "transient equilibrium" diffusion experiment. In both systems the deviations lie within the experimental and analytical errors.

Publisher

Canadian Science Publishing

Subject

General Physics and Astronomy

Cited by 58 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3