Effect of Cooling Rates on Mechanical Properties and Microstructure of Inconel Alloys

被引：0

作者：

Park, No Kyeong ^{[1
]}

Lee, Ho Seong ^{[1
]}

Chai, Young Suck ^{[2
]}

机构：

[1] Kyungpook Natl Univ, Sch Mat Sci & Engn, 1370 Sangyeok Dong, Daegu 702701, South Korea

[2] Yeungnam Univ, Sch Mech Engn, Kyongsan 712749, South Korea

来源：

KOREAN JOURNAL OF MATERIALS RESEARCH | 2007年 / 17卷 / 10期

关键词：

Inconel alloy; Steam generator tube; Microstructure; Mechanical property; Heat treatment; Cooling rate;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The mechanical properties and microstructure of Inconel 690 and 600 alloys with various cooling rates were investigated. Optical microscopy and scanning electrbn microscopy observations indicated that in case of the cooling rate of 0.5 degrees C/min, discontinuous carbides along the grain boundaries were formed and when the cooling rate was 10 degrees C/min, continuous carbides were formed in Inconel 690 and 600 alloys. For the annealed Inconel 690 alloy with high Cr content, a lot of annealing twins, which led the preferential growth of (111) planes, were observed. However, the annealed Inconel 600 alloy with low Cr content showed a few annealing twins and the preferential growth of (200) planes. Inconel 600 alloy had a larger value of ultimate tensile strength (UTS) than Inconel 690 alloy.

引用

页码：555 / 559

页数：5

共 16 条

[1]

Aim Y. C., 1999, J KOREAN INST MET MA, V37, P409

[2] MICROSTRUCTURAL ASPECTS OF THE THERMAL-TREATMENT OF INCONEL ALLOY 600 [J].

AIREY, GP .

METALLOGRAPHY, 1980, 13 (01) :21-41

[3]

Alm Y. C., 1999, J KOREAN INST MET MA, V37, P416

[4] Overview of steam generator tube degradation and integrity issues [J].

Diercks, DR ;

Shack, WJ ;

Muscara, J .

NUCLEAR ENGINEERING AND DESIGN, 1999, 194 (01) :19-30

[5] Oxidation products of INCONEL alloys 600 and 690 in pressurized water reactor environments and their role in intergranular stress corrosion cracking [J].

Ferguson, J. B. ;

Lopez, Hugo F. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (08) :2471-2479

[6]

Huh M.-Y., 1995, J KOREAN INST MET MA, V33, P1197

[7]

Jin Kyu Lee, 1998, Journal of the Korean Institute of Metals and Materials, V36, P998

[8] THE EFFECTS OF HEAT-TREATMENT ON THE CHROMIUM DEPLETION, PRECIPITATE EVOLUTION, AND CORROSION RESISTANCE OF INCONEL ALLOY-690 [J].

KAI, JJ ;

YU, GP ;

TSAI, CH ;

LIU, MN ;

YAO, SC .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1989, 20 (10) :2057-2067

[9]

Maeng W.-Y., 1997, J KOREAN INST MET MA, V35, P1019

[10]

Maeng W.-Y., 1997, HEAT TREATMENT, V10, P219

← 1 2 →