کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1574713 1514725 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on the mechanical properties, microstructure and corrosion behaviors of nano-WC-Co-Ni-Fe hard materials through HIP and hot-press sintering processes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Study on the mechanical properties, microstructure and corrosion behaviors of nano-WC-Co-Ni-Fe hard materials through HIP and hot-press sintering processes
چکیده انگلیسی
This study aims to explore a series of Hot Isostatic Pressing (HIP) and hot-press sintering processes in order to examine the effects on the mechanical properties, microstructures and corrosion behaviors of micro- and nano-WC materials. The experimental results showed that the transverse rupture strength (TRS) values of micro- and nano-WC increased to 1627.3 and 1842.7 MPa after 1250 °C, 125 MPa, 100 min HIP treatments, respectively. Meanwhile, the porosity decreased slightly. The corrosion test results also showed that HIP-treated micro- and nano-WC effectively improved corrosion resistance in a 3.5 wt% NaCl solution. In addition, the lowest porosity (0.21%), highest hardness (91.7 HRA) and highest KIC (14.7 MPa√m) values appeared in nano-WC after 1250 °C, 15 MPa, 1 h hot-press sintering. Moreover, the hot-press sintering procedure significantly inhibited the grain growth of the tungsten carbide materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 618, 17 November 2014, Pages 56-62
نویسندگان
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