ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The alloying effects of Pd on the hydrogen solubility and the resistance to hydrogenembrittlement are investigated for Nb-xmol%Pd-ymol%Zr (x=0~19; y=0, 1) alloys. The hydrogensolubility at 673 K is found to decrease with increasing Pd content in the alloys. Both pure Nb andNb-Pd alloys possessed ductility in vacuum at 673 K. However, severe hydrogen embrittlementoccurs in pure Nb when it is tested under the hydrogen pressure even as low as 0.01 MPa. In view ofthe small punch (SP) absorption energy, the addition of Pd into Nb improves the resistance tohydrogen embrittlement by decreasing the hydrogen solubility in the alloy, although brittle fracture isstill observed in the Nb-15mol%Pd alloy tested under a hydrogen pressure of 0.015 MPa at 673 K
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.873.pdf
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