Abstract: A device for recovering magnetic particles trapped on a magnetic plug that has a bar magnet to retain the magnetic particles entrained by a liquid in which the magnetic plug is immersed, the device including a cap including a non-magnetic tube having a proximal end having an opening for the insertion of the magnet into the tube and a closed distal end, the tube to cover the magnet when it is inserted into the tube, a retention device to ensure retention between the cap and the magnet when the magnet is inserted into the tube, an extraction device provided with an opening to ensure insertion of the tube into the extraction device, the extraction device to cover the tube when the tube is inserted into the extraction device and to receive the particles trapped on the tube when the magnet is withdrawn from the tube, and a retention device to ensure retention between the extraction device and the tube.

Abstract: A method of examining a titanium alloy with an alpha phase and a beta phase is disclosed. The method includes: cutting a sample of a part made of the alloy; preparing a region of the cut surface of the sample situated in the vicinity of the edge of the sample, the edge being in common with the outside surface of the part; observing the alpha phase of the region at a magnification of greater than ×5000; deciding on whether granularity is present or absent in the alpha phase of a first zone contiguous with the edge of the sample; and concluding that the alloy has been contaminated with a gas if granularity is found to be absent in the alpha phase of the contiguous zone whereas granularity is present in the alpha phase outside the contiguous zone.

Abstract: A device for recovering magnetic particles trapped on a magnetic plug that has a bar magnet to retain the magnetic particles entrained by a liquid in which the magnetic plug is immersed, the device including a cap including a non-magnetic tube having a proximal end having an opening for the insertion of the magnet into the tube and a closed distal end, the tube to cover the magnet when it is inserted into the tube, a retention device to ensure retention between the cap and the magnet when the magnet is inserted into the tube, an extraction device provided with an opening to ensure insertion of the tube into the extraction device, the extraction device to cover the tube when the tube is inserted into the extraction device and to receive the particles trapped on the tube when the magnet is withdrawn from the tube, and a retention device to ensure retention between the extraction device and the tube.

Abstract: The invention relates to a method of examining a titanium alloy of two-phase type with an alpha phase and a beta phase. The method comprises the following steps: a) cutting a sample of a part made of the alloy; b) preparing a region (4) of the cut surface of the sample that is situated in the vicinity of the edge (50) of the sample, the edge (50) being in common with the outside surface (1) of the part, so as to enable the region (4) to be observed; c) observing the alpha phase of the region (4) at a magnification of greater than ×5000; d) deciding on whether granularity is present or absent in the alpha phase of a first zone (11) contiguous with the edge (50) of the sample; and e) concluding that the alloy has been contaminated with a gas if granularity is found to be absent in the alpha phase of the contiguous zone (11) whereas granularity (22) is present in the alpha phase outside the contiguous zone (11).