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Boron Segregation to Grain Boundaries and Improved Ductility in Pt + 30 Wt % Rh + 8 Wt % W

机译：硼离子晶界和pt + 30 Wt％Rh + 8 Wt％W的改善延展性

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Boron additions of up to 75 wt ppM have been observed to improve the room temperature strength and ductility of a Pt + 30 wt % Rh + 8 wt % W alloy. Alloys without boron fail intergranularly, and those with 75 wt ppM boron added fail in a mixed intergranular-transgranular mode. Auger electron spectroscopy on intergranular fracture surfaces indicated that boron segregates strongly to grain boundaries in the boron doped alloys. Transmission electron microscopy of alloys with and without boron indicated that both were free of internal precipitates. The observed improvements in strength and ductility appear to be related to boron enrichment within a few atomic distances of the grain boundary. (ERA citation 05:035152)

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作者
White, C. L.; Keiser, J. R.; Braski, D. N.;
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年度 1979
页码 p.1-26
总页数 26
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Boron; Grain boundaries; Platinum base alloys; Rhodium alloys; Tungsten alloys; Boron additions; Doped materials; Ductility; Failures; Fractures; Mobility; Segregation; Surfaces;

机译：硼;晶界;铂基合金;铑合金;钨合金;硼添加剂;掺杂材料;延展性;失效;断裂;流动性;离析;表面;

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机译：原子探针层析成像和纳米二次离子质谱研究在0.5 wt％的碳钢中硼在奥氏体晶界处的偏析
2. Atom Probe Tomography and Nano Secondary Ion Mass Spectroscopy Investigation of the Segregation of Boron at Austenite Grain Boundaries in 0.5 wt.% Carbon Steels [J] . J. B. Seol, N. S. Lim, B. H. Lee Metals and Materials International . 2011,第3期

机译：0.5 wt。％碳钢中硼在奥氏体晶界偏析的原子探针层析成像和纳米二次离子质谱研究
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Boron Segregation to Grain Boundaries and Improved Ductility in Pt + 30 Wt % Rh + 8 Wt % W

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