Effect of cooling rate on β →I± transformation during quenching of a Zr-0.85Sn-0.4Nb-0.4Fe-0.1Cr-0.05Cu alloy

被引：27

作者：

Chai LinJiang ^{[1
]}

Luan BaiFeng ^{[1
]}

Chen JianWei ^{[1
]}

Zhou Jun ^{[2
]}

Liu Qing ^{[1
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China

[2] NW Inst Nonferrous Met Res, Xian 721014, Peoples R China

来源：

SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2012年 / 55卷 / 10期

关键词：

zirconium alloy; microstructure; cooling rate; phase transformation; hardness; ALPHA-PHASE-TRANSFORMATION; CORROSION BEHAVIOR; HEAT-TREATMENT; MICROSTRUCTURE; TEMPERATURE; GROWTH; COPPER;

D O I：

10.1007/s11431-012-4956-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of beta -> alpha cooling rate during quenching on a new Zr-Sn-Nb-Fe-Cr-Cu alloy is reported. The microstructure evolution is well characterized by electron channeling contrast (ECC) imaging and transmission electron microscopy (TEM) techniques. The results show that specimens cooled by water, liquid nitrogen, air and furnace from beta-phase present martensitic, coarse basket-weave, parallel-plate and lenticular structure, respectively. Residual beta phase is detected by performing electron diffraction and composition analysis in the furnace cooled specimen. Micro hardness values of specimens decrease while the width of alpha laths increase with the cooling rate decreasing. The preliminarily established quantitative relationship among the cooling rate, microstructure and mechanical properties will shed light on the microstructure control and property optimization.

引用

页码：2960 / 2964

页数：5

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