Abstract: A component for an electronic device can include a pre-formed substrate comprising a first metal and an additively manufactured portion bonded to the pre-formed substrate. The additively manufactured portion can include a first portion comprising a second metal and defining a volume, the first portion having a first value of a material property, and a second portion disposed in the volume, the second portion having a second value of the material property that is different from the first value.

Abstract: The disclosure provides an aluminized composite including a base material. The aluminized composite may also include a diffusion layer disposed over the base material. The aluminized composite may further include an aluminum material disposed over the diffusion layer.

Abstract: The disclosure provides an aluminum alloy may include iron (Fe) of at least 0.10 wt %, silicon (Si) of at least 0.35 wt %, and magnesium (Mg) of at least 0.45 wt %, manganese (Mn) in amount of at least 0.005 wt %, and additional elements, the remaining wt % being Al and incidental impurities.

Abstract: A method of forming a part can include selectively activating one or more lasers of a laser array comprising at least 100 lasers based at least partially on a geometry of the part being formed. The method can further include scanning laser spots over a powder bed, the laser sports generated by the activated lasers, and selectively sintering a powder contained in the powder bed with the laser spots to form the part.

Abstract: A method of forming a unitary sintered body can include cutting a first portion and a second portion from a sheet of feedstock. The feedstock can include ceramic or metallic particles suspended in a binder. The first portion can be positioned in contact with the second portion and the portions can be sintered together to form the unitary body.

Abstract: Anodic oxide coatings that provide corrosion resistance to parts having protruding features, such as edges, corners and convex-shaped features, are described. According to some embodiments, the anodic oxide coatings include an inner porous layer and an outer porous layer. The inner layer is adjacent to an underlying metal substrate and is formed under compressive stress anodizing conditions that allow the inner porous layer to be formed generally crack-free. In this way, the inner porous layer acts as a barrier that prevents water or other corrosion-inducing agents from reaching the underlying metal substrate. The outer porous layer can be thicker and harder than the inner porous layer, thereby increasing the overall hardness of the anodic oxide coating.

Abstract: The disclosure provides an aluminum alloy including iron (Fe) in an amount of 0.10 wt % to 0.50 wt %; silicon (Si) in an amount of 0.50 wt % to 1.00 wt %; magnesium (Mg) in amount of 0.50 wt % to 0.90 wt %; one of manganese (Mn) or chromium (Cr) in amount from 0.040 to 0.500 wt %; additional non-aluminum (Al) elements in an amount not exceed 3.5 wt %; and the remaining wt % being Al and incidental impurities, wherein the alloy has a Mg/Si ratio of equal to or greater than 0.90.

Abstract: An aluminum alloy that may include 0.45 to 0.85 wt % Si, 0.15 to 0.25 wt % Cu, 0.40 to 0.80 wt % Fe, 1.20 to 1.65 wt % Mg, and 0.80 to 1.10 wt % Mn, where the balance is aluminum and incidental impurities. The alloy can include used beverage can (UBC) scrap.

Abstract: The disclosure is directed to aluminum alloys made from recycled components. The alloys have copper (Cu) from 0.051 to 0.10 wt %, chromium (Cr) from 0.01 to 0.10 wt %, zinc (Zn) from 0.02 to 0.20 wt %, manganese (Mn) from 0.03 to 0.10 wt %, iron (Fe) in an amount of at least 0.10 wt %, silicon (Si) in an amount of at least 0.35 wt %, magnesium (Mg) in amount of at least 0.45 wt %, and the remaining wt % being Al and incidental impurities. In other aspects, the disclosure is directed to aluminum alloys having copper (Cu) from 0.010 to 0.050 wt %, chromium (Cr) from 0.01 to 0.10 wt %, zinc (Zn) from 0.01 to 0.20 wt %, manganese (Mn) from 0.03 to 0.10 wt %, iron (Fe) in an amount of at least 0.10 wt %, silicon (Si) in an amount of at least 0.35 wt %, magnesium (Mg) in amount of at least 0.45 wt %, and the remaining wt % being Al and incidental impurities. The b* color of the alloys ranges from ?2 to 2, and the L* color ranges from 70 to 100.

Abstract: The disclosure provides a method of hardening an Fe-based alloy. The method may include cold rolling the Fe-based alloy to form a cold rolled alloy. The method may also include heating the cold rolled alloy to an elevated temperature in a nitrogen-containing gas to form a nitrided hardened Fe-based alloy. The nitrided hardened Fe-based alloy comprises N from 0.035 to 2.0 wt %.

Abstract: Anodized substrates having laser markings and methods for forming the same are described. According to some embodiments, the methods involve forming a feature on a substrate using a laser prior to anodizing. The laser energy and pulse width can be chosen so as to provide a particular topology to a surface of the substrate that, after anodizing, absorbs incoming light and imparts a dark appearance to the feature. In some cases, the methods involve forming a coarse oxide layer, which is removed prior to anodizing. Since the laser marking is performed prior to anodizing, the anodized substrates are free from laser-induced cracks, thereby making the anodized substrates more corrosion resistant than conventional laser-marked anodized substrates. The techniques are well suited for forming features on consumer products that may be exposed to water or other corrosion-inducing agents.

Abstract: The disclosure provides an aluminum alloy including having varying ranges of alloying elements. In various aspects, the alloy has a wt % ratio of Zn to Mg ranging from 4:1 to 7:1. The disclosure further includes methods for producing an aluminum alloy and articles comprising the aluminum alloy.

Abstract: The disclosure provides an aluminum alloy including having varying ranges of alloying elements. In various aspects, the alloy has a wt % ratio of Zn to Mg ranging from 4:1 to 7:1. The disclosure further includes methods for producing an aluminum alloy and articles comprising the aluminum alloy.

Abstract: The disclosure provides an aluminum alloy including having varying ranges of alloying elements. In various aspects, the alloy has a wt % ratio of Zn to Mg ranging from 4:1 to 7:1. The disclosure further includes methods for producing an aluminum alloy and articles comprising the aluminum alloy.

Abstract: The disclosure provides an aluminum alloy may include iron (Fe) of at least 0.10 wt %, silicon (Si) of at least 0.35 wt %, and magnesium (Mg) of at least 0.45 wt %, manganese (Mn) in amount of at least 0.005 wt %, and additional elements, the remaining wt % being Al and incidental impurities.

Abstract: A housing for an electronic device is disclosed. The housing includes a first conductive component defining a first interface surface, a second conductive component defining a second interface surface facing the first interface surface, and a joint structure between the first and second interface surfaces. The joint structure includes a molded element forming a portion of an exterior surface of the housing, and a sealing member forming a watertight seal between the first and second conductive components. Methods of forming the electronic device housing are also disclosed.

Abstract: Anodic oxide coatings that provide corrosion resistance to parts having protruding features, such as edges, corners and convex-shaped features, are described. According to some embodiments, the anodic oxide coatings include an inner porous layer and an outer porous layer. The inner layer is adjacent to an underlying metal substrate and is formed under compressive stress anodizing conditions that allow the inner porous layer to be formed generally crack-free. In this way, the inner porous layer acts as a barrier that prevents water or other corrosion-inducing agents from reaching the underlying metal substrate. The outer porous layer can be thicker and harder than the inner porous layer, thereby increasing the overall hardness of the anodic oxide coating.

Abstract: Anodized substrates having laser markings and methods for forming the same are described. According to some embodiments, the methods involve forming a feature on a substrate using a laser prior to anodizing. The laser energy and pulse width can be chosen so as to provide a particular topology to a surface of the substrate that, after anodizing, absorbs incoming light and imparts a dark appearance to the feature. In some cases, the methods involve forming a coarse oxide layer, which is removed prior to anodizing. Since the laser marking is performed prior to anodizing, the anodized substrates are free from laser-induced cracks, thereby making the anodized substrates more corrosion resistant than conventional laser-marked anodized substrates. The techniques are well suited for forming features on consumer products that may be exposed to water or other corrosion-inducing agents.

Abstract: A housing for an electronic device is disclosed. The housing includes a first conductive component defining a first interface surface, a second conductive component defining a second interface surface facing the first interface surface, and a joint structure between the first and second interface surfaces. The joint structure includes a molded element forming a portion of an exterior surface of the housing, and a sealing member forming a watertight seal between the first and second conductive components. Methods of forming the electronic device housing are also disclosed.

Abstract: Methods of forming anodic oxide coatings on high strength aluminum alloys are described. Methods involve preventing or reducing the formation of interface-weakening species, such as zinc-sulfur compounds, at an interface between an anodic oxide coating and underlying aluminum alloy substrate during anodizing. In some embodiments, a micro-alloying element is added in very small amounts to an aluminum alloy substrate to prevent enrichment of zinc at the anodic oxide and substrate interface, thereby reducing or preventing formation of the zinc-sulfur interface-weakening species. In some embodiments, a sulfur-scavenging species is added to an aluminum alloy substrate to prevent sulfur from a sulfuric acid anodizing bath from binding with zinc and forming the zinc-sulfur interface-weakening species at the anodic oxide and substrate interface. In some embodiments, a micro-alloying element and a sulfur-scavenging species are added to an aluminum alloy substrate.