EFFECT OF B ON HOT WORKABILITY OF FE-36-PERCENT-NI ALLOY

被引：0

作者：

TSUDA, M ^{[1
]}

NEMOTO, R ^{[1
]}

机构：

[1] NIPPON Y AKIN KOGYO CO LTD,DIV RES & DEV,TYUO KU,TOKYO 104,JAPAN

来源：

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 1994年 / 80卷 / 09期

关键词：

INVAR ALLOY; HOT WORKABILITY; SEGREGATION; B; S; AUGER ELECTRON SPECTROMETER; GRAIN BOUNDARY; DIFFUSION; GRAIN BOUNDARY COHESION; OXIDATION;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Effect of B addition on hot workability of Fe-36%Ni alloy has been studied by means of hot tensile tests, micro hardness tests and physical analyses of fractured surface. Addition of 0.002 approximately 0.004%B was effective on improving hot workability as well as preventing slightly grain boundary oxidation. It was clarified by Auger Electron spectrometer that hot workability was greatly affected by S segregation at grain boundaries, which could be decreased by segregation of B. From the view of diffusion of B and S, grain boundary cohesion by B segregation and grain boundary oxidation, the mechanism of improvement in hot workability of Fe-36%Ni alloys by B addition has been discussed.

引用

页码：729 / 734

页数：6