Improvement in the ductility of molybdenum alloys due to grain boundary segregation

被引：95

作者：

Miller, MK ^{[1
]}

Kenik, EA ^{[1
]}

Mousa, MS ^{[1
]}

Russell, KF ^{[1
]}

Bryhan, AJ ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Microscopy & Microanalyt Sci Grp, Div Met & Ceram, Oak Ridge, TN 37831 USA

来源：

SCRIPTA MATERIALIA | 2002年 / 46卷 / 04期

关键词：

atom probe; molybdenum; grain boundary; segregation; ductility;

D O I：

10.1016/S1359-6462(01)01242-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

An improvement in the tensile ductility from the traditional 3-20% in 6.35-mm-thick molybdenum weldments has been achieved through the addition of Zr, Al, C and B at the ppm level. Atom probe tomography has revealed segregation of Zr, B and C to and depletion of O at the grain boundaries in the base metal and the heat affected zone. Published by Elsevier Science Ltd. on behalf of Acta Materialia Inc.

引用

页码：299 / 303

页数：5

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