Quantification of retained austenite by X-ray diffraction and saturation magnetization in a supermartensitic stainless steel

被引：25

作者：

Sicupira, Felipe Lucas ^{[1
]}

Sandim, Maria Jose R. ^{[2
]}

Sandim, Hugo R. Z. ^{[2
]}

Santos, Dagoberto Brandao ^{[1
]}

Renzetti, Reny Angela ^{[3
]}

机构：

[1] Escola Engn UFMG, Dept Met & Mat Engn, BR-31270901 Belo Horizonte, MG, Brazil

[2] Escola Engn Lorena USP, BR-12600970 Lorena, SP, Brazil

[3] Univ Fed Itajuba UNIFEI, BR-35903087 Itabira, MG, Brazil

来源：

MATERIALS CHARACTERIZATION | 2016年 / 115卷

关键词：

Retained Austenite; Secondary Tempering; X-ray diffraction; Saturation magnetization; REVERSE TRANSFORMATION; ROOM-TEMPERATURE; IN-SITU; MARTENSITE;

D O I：

10.1016/j.matchar.2016.03.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The good performance of supermartensitic stainless steels is strongly dependent on the volume fraction of retained austenite at room temperature. The present work investigates the effect of secondary tempering temperatures on this phase transformation and quantifies the amount of retained austenite by X-ray diffraction and saturation magnetization. The steel samples were tempered for 1 h within a temperature range of 600-800 degrees C. The microstructure was characterized using scanning electron microscopy and electron backscatter diffraction. Results show that the amount of retained austenite decreased with increasing secondary tempering temperature in both quantification methods. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：90 / 96

页数：7

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