What's the difference between ductile and tractile?

Ductile

Definition:

(a.) Easily led; tractable; complying; yielding to motives, persuasion, or instruction; as, a ductile people.
(a.) Capable of being elongated or drawn out, as into wire or threads.

Example Sentences:

(1) Mechanical and biomechanical testing of a new bone cement suggests that improved load transfer to the proximal femur could be achieved with the combination of a cement having a lower modulus, a greater ductility and a lower creep resistance than polymethylmethacrylate and a suitably shaped femoral component.
(2) The above materials were generally ductile and the mechanical properties indicated a useful class of materials for clinical use.
(3) Results indicated that excellent welds can be obtained with very little loss of strength and ductility in the area of the weld joint.
(4) These materials could not be used in load-bearing applications because of the excessive grain growth and loss of the wrought structure of both the commercially pure Ti and Ti-6Al-4V substrates, and the loss of ductility in the cast Co-Cr-Mo alloy.
(5) Cast and hot isostatically pressed Ti-6Al-4V, however, has a relatively low ductility and reduced fatigue properties.
(6) Furthermore, it has been shown that the attainment of suitable strength is invariably associated with an unacceptable level of ductility.
(7) The effect of stress on a cantilever, consisting of a ductile alloy in contact with a brittle polymer, was demonstrated to be complex.
(8) The presence of the urethane bond at the N-terminus protecting group was found to reduce solubility, ductility, and processibility, probably due to interchain hydrogen bonding.
(9) Analysis of the stress-strain curves revealed a transition in the type of deformation at this point from pseudo-ductile to brittle.
(10) This composition is consistent with the hypothesis that the cement line provides a relatively ductile interface with surrounding bone matrix, and that it provides the point specific stiffness differences, poor 'fiber'-matrix bonding and energy transfer qualities required to promote crack initiation but slow crack growth in compact bone.
(11) The parameters used to assess performance were sharpness, resistance to bending, and ductility.
(12) maize starch and polymeric materials, there was an increase in the yield pressure with punch velocity attributable to a change either from ductile to brittle behaviour or a reduction in the amount of plastic deformation due to the time dependent nature of plastic flow.
(13) The purpose of this research was to evaluate the torsional strength and ductility of CP titanium in the as received condition, heat treated below the alpha----beta transition temperature, and glass bead blasted.
(14) In the present effort, the same flexure tests were reevaluated to include the parameters of stiffness, toughness, and ductility.
(15) The proximal end is ductile and the distal end rigid.
(16) A more ductile PLLA exhibiting a lower rate of degradation was prepared by extraction of low molecular weight compounds with ethyl acetate.
(17) The ductility and malleability of pure silver allow for ease of adaptation or alteration as a chairside or operating room procedure.
(18) (3) The simulated ceramic firing cycle created a small amount of ductility in SMG-2, but the lowering of the yield stress in Ceramco-0 renders the welds dangerously weak even with improved ductility.
(19) The fracture of the titanium specimens was ductile, with dimples occurring at the fracture surfaces.
(20) The superior ductility of needles made by one manufacturer was related to the specific alloy, stainless steel ASTM 45500, used in their production.