GRAIN-BOUNDARY COMPOSITION EFFECTS ON ENVIRONMENTALLY INDUCED CRACKING OF ENGINEERING MATERIALS

被引：16
作者：
BRUEMMER, SM
机构：
[1] Pacific Northwest Lab, Richland, WA,, USA, Pacific Northwest Lab, Richland, WA, USA
来源：
CORROSION | 1988年 / 44卷 / 06期
关键词：
IRON AND STEEL METALLOGRAPHY - Grain Boundaries - SPECTROSCOPIC ANALYSIS - SPECTROSCOPY; AUGER ELECTRON - Applications - STEEL - Hydrogen Embrittlement;
D O I：
10.5006/1.3583950
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
There is evidence that intergranular stress corrosion cracking (IGSCC) and hydrogen embrittlement (HE) of engineering materials depend on grain boundary composition. Two examples are used to illustrate this interrelationship: (1) stress corrosion cracking (SCC) of austenitic stainless steel in high temperature water and (2) HE of NiCrMoV rotor steels in acidic solutions. Grain boundary compositions were characterized by analytical electron microscopy and scanning Auger electron spectroscopy. Environmental cracking susceptibility is indicated by slow strain rate tests (SSRTs) in appropriate aqueous environments. Direct correlations are documented between measured grain boundary compositions and environmental cracking.
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收藏
页码：364 / 370
页数：7
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